# High Energy Physics - Phenomenology

## New submissions

[ total of 45 entries: 1-45 ]
[ showing up to 2000 entries per page: fewer | more ]

### New submissions for Fri, 22 Jun 18

[1]
Title: Leptonic WIMP Coannihilation and the Current Dark Matter Search Strategy
Subjects: High Energy Physics - Phenomenology (hep-ph)

We discuss the extent to which models of Weakly Interacting Massive Particle (WIMP) Dark Matter (DM) at and above the electroweak scale can be probed conclusively in future high energy and astroparticle physics experiments. We consider simplified models with bino-like dark matter and slepton-like coannihilation partners, and find that perturbative models yield the observed relic abundance up to at least 10 TeV. We emphasise that coannihilation can either increase or decrease the dark matter relic abundance. We compute the sensitivity of direct detection experiments to DM-nucleus scattering, consider indirect detection bounds and estimate the sensitivity of future proton colliders to slepton pair production. We find that current and future experiments will be able to probe the Dirac DM models up to at least 10 TeV. However, current and future searches will not be sensitive to models of Majorana dark matter for masses above 2 or 4 TeV, for one or ten coannihilation partners respectively, leaving around 70 % of the parameter space unconstrained. This demonstrates the need for new experimental ideas to access models of coannihilating Majorana dark matter.

[2]
Title: Impact of an extra gauge interaction on naturalness of supersymmetry
Subjects: High Energy Physics - Phenomenology (hep-ph)

It is pointed out that in supersymmetric models with a new gauge symmetry under which the Higgs is charged, the fine-tuning of the electroweak symmetry breaking is relaxed due to suppression of the top Yukawa coupling at higher scales by a new large gauge coupling. We calculate the fine-tuning in an explicit model and find that the lower bounds on stops and gluino masses from the naturalness criterion are increased by several hundred GeV in comparison to the Minimal Supersymmetric Standard Model (MSSM). The fine-tuning is improved by one to two orders of magnitude as compared to the MSSM, as a consequence of both the suppression of the top Yukawa coupling and the additional tree-level contribution to the Higgs mass allowing for much lighter stops.

[3]
Title: Updating and Optimizing Error PDFs in the Hessian Approach
Subjects: High Energy Physics - Phenomenology (hep-ph)

We discuss how to apply the Hessian method (i) to predict the impact of a new data set (or sets) on the parton distribution functions (PDFs) and their errors, by producing an updated best-fit PDF and error PDF sets, such as the CTEQ-TEA PDFs; (ii) to predict directly the effect of a new data set on the PDF errors of any other set of observables, without the need to recalculate using the new error PDFs; and (iii) to transform the original set into a reduced set of error PDFs which is optimized for a specific set of observables to reproduce the PDF-induced uncertainties to any specified precision. We present a software package, {\tt ePump} (error PDF Updating Method Package), that can be used to update or optimize a set of PDFs, including the best-fit PDF set and Hessian eigenvector pairs of PDF sets (i.e., error PDFs), and to update any other set of observables. We demonstrate the potential of the program by presenting selected phenomenological applications relevant to the Large Hadron Collider. Special care is given to discuss the assumptions made and the limitations of this theoretical framework compared to a treatment by the full global analysis program.

[4]
Title: Confusion and falsification in long-baseline experiments with NSI
Comments: 13 pages, 4 multiple figures and one table
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

One of the main purposes of long-baseline neutrino experiments is to unambiguously measure the CP violating phase in the neutrino sector within the three neutrino oscillation picture. In the presence of physics beyond the Standard Model, the determination of the CP phase will be more difficult, due to the already known degeneracy problem. Working in the framework of non-standard interactions (NSI), we compute the appearance probabilities in an exact analytical formulation and analyze the region of parameters where the confusion problem is present. We also discuss some cases where the falsification of the NSI parameters can be done in long-baseline experiments.

[5]
Title: A hyperspherical-coordinate approach to the spectra and decay widths of hybrid quarkonia
Subjects: High Energy Physics - Phenomenology (hep-ph)

In this paper, we consider the possibility that Y(4260), Y(4360), $\psi(4415)$ or X(4660) is the ground state or the first excited state of a hybrid charmonium, and examine whether $\Upsilon ( 10860)$ is the ground state or the first excited state of a hybrid bottomonium. Under a constituent quark model, we carry out numerical calculations to obtain the spectra of both electric-gluon and magnetic-gluon hybrid quarkonia. We see that the ground state of a magnetic-gluon hybrid charmonium and the first excited state of an electric-gluon hybrid are comparable in energy to $\psi(4415)$, and that the first excited states of an electric-gluon hybrid bottomonium and the ground state of an magnetic-gluon hybrid appear a few hundred MeV above the mass of $\Upsilon (10860 )$. Also, we evaluate the widths of the decays of a hybrid charmonium into $D^{(*)} \bar{D^{(*) } }$ and those of a hybrid bottomonium into $B^{(*) } \bar{B^{(* ) } }$. We show that if the exotic meson candidates are hybrid charmonia, then they are magnetic-gluon ones, and argue that it seems unlikely that $\Upsilon (10860)$ is the ground state of an electric-gluon hybrid bottomonium.

[6]
Title: Charm-quark pole mass from HERA Combined and LHCb charm production data
Authors: A. Vafaee
Subjects: High Energy Physics - Phenomenology (hep-ph)

Because of color confinement hypothesis, which states that colored objects are always confined to color singlet states, there are several definitions for charm-quark mass, which one of the most popular definition is charm-quark pole mass $m_c^{\rm pole}$. This Quantum Chromo Dynamics (QCD) analysis attempts to extract charm quark-pole mass from H1-ZEUS combined (H1Z), LHCb and H1Z$+$LHCb charm production cross section data and then investigate its pure impact on proton parton distribution functions (PDFs). To reach this goal we makes several fits based on the very recently updated fixed flavor number scheme from ABM (FF ABM) at the next-to-leading order (NLO). We show that the pure contribution of charm-quark pole mass in the improvement of the fit quality, when it is considered as an extra fit parameter in perturbative Quantum Chromo Dynamics (pQCD) level is $\sim 0$~\%~, $\sim 25$~\% and $\sim 21$~\% corresponding to H1-ZEUS combined, LHCb and H1Z$+$LHCb charm production cross section data, respectively.

[7]
Title: Three Parton Corrections, Isospin Symmetry, and $B\toπK$ Puzzle
Authors: Tsung-Wen Yeh
Subjects: High Energy Physics - Phenomenology (hep-ph)

We study the $B\to\pi K$ puzzle by calculating the three parton one loop corrections in the QCD factorization (QCDF) approach. We employ a general parameterization model for the $B\to\pi K$ amplitudes to introduce twelve independent parameters, the weak angle $\gamma$ and the other eleven hadronic parameters. Eight unknown parameters, four scale variables, one weak angle, and three nonperturbative strong phases, are determined by a least square fit to the eight measurements of four branching ratios and four direct CP asymmetries. The fit shows that the model based on QCDF calculations can completely accommodate the experimental data. The eleven hadronic parameters and the three nonperturbative strong phases are found to be process-dependent. A large negative relative phase associated with the internal up quark gluonic penguin diagram is observed. The weak angle $\gamma$ is found to be $72.1\pm5.8$ degree, being consistent with the world averaged value, $72.1\pm5.8$ degree. Using the fit data to the mixing induced asymmetry $S(\pi^{0}K_{S})=0.58\pm0.06$, the weak angle $\beta$ is determined to be $22.9\pm2.1$ degree, in agreement with the world averaged value, $22.5\pm4.4\pm0.6$ degree. The theoretical prediction for the ratio $C^{\prime}/T^{\prime}$ (color suppressed/color favored) is found to be $0.58\pm0.12$. The above evidences indicate that the $B\to\pi K$ puzzle can be solved. By the fit data, we examine the underlying isospin symmetry of the $B\to\pi K$ system, the quadrangle relation. The ratio of the two sides of the quadrangle relation is calculated to be $r=(0.87\pm0.15)\exp(-i22^{\circ})$, which signals the isospin symmetry breaking at $6\sigma$. The nonzero phases and process-dependent amplitude parameters break the isospin symmetry "dynamically".

[8]
Title: A scalar assisted singlet doublet fermion dark matter model and electroweak vacuum stability
Comments: 38 pages, 15 figures, 4 tables
Subjects: High Energy Physics - Phenomenology (hep-ph)

We extend the so-called singlet doublet dark matter model, where the dark matter is an admixture of a Standard Model singlet and a pair of electroweak doublet fermions, by a singlet scalar field. The new portal coupling of it with the dark sector not only contributes to the dark matter phenomenology (involving relic density and direct detection limits), but also becomes important for generation of dark matter mass through its vacuum expectation value. While the presence of dark sector fermions affects the stability of the electroweak vacuum adversely, we find this additional singlet is capable of making the electroweak vacuum absolutely stable upto the Planck scale. A combined study of dark matter phenomenology and Higgs vacuum stability issue reflects that the scalar sector mixing angle can be significantly constrained in this scenario.

[9]
Title: On spin asymmetry in muon and tau decays
Subjects: High Energy Physics - Phenomenology (hep-ph)

The angular asymmetry in decays of polarized muons and tau leptons is discussed. Both the standard V-A Fermi model and the general parameterization via Michel parameters are considered. Numerical importance of contributions suppressed by charged lepton mass ratio is underlined. Contribution of the second order QED correction is estimated in the leading logarithm approximation.

[10]
Title: Scalar Dark Matter, GUT baryogenesis and Radiative neutrino mass
Subjects: High Energy Physics - Phenomenology (hep-ph)

We investigate an interesting correlation among dark matter phenomenology, neutrino mass generation and GUT baryogenesis, based on the scotogenic model. The model contains additional right-handed neutrinos $N$ and a second Higgs doublet $\Phi$, both of which are odd under an imposed $Z_2$ symmetry. The neutral component of $\Phi$, i.e. the lightest of the $Z_2$-odd particles, is the dark matter candidate. Due to a Yukawa coupling involving $\Phi$, $N$ and the Standard Model leptons, the lepton asymmetry is converted into the dark matter asymmetry so that a non-vanishing $B-L$ asymmetry can arise from $(B-L)$-conserving GUT baryogenesis, leading to a nonzero baryon asymmetry after the sphalerons decouple. On the other hand, $\Phi$ can also generate neutrino masses radiatively. In other words, the existence of $\Phi$ as the dark matter candidate resuscitates GUT baryogenesis and realizes neutrino masses.

[11]
Title: Impact of CMS 5.02 TeV dijet measurements on gluon PDFs - a preliminary view
Comments: 6 pages, 7 figures. Prepared for the proceedings of the XXVI International Workshop on Deep-Inelastic Scattering and Related Subjects
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)

We discuss the implications of the preliminary CMS dijet data from 5.02 TeV pp and pPb collisions for gluon PDFs of the proton and nuclei. The preliminary pp data show a discrepancy with NLO predictions using for example the CT14 PDFs. We find that this difference cannot be accommodated within the associated scale uncertainties and debate the possible changes needed in the gluon PDF. A similar discrepancy is found between the CMS pPb data and NLO predictions e.g. with the EPPS16 nuclear modifications imposed on the CT14 proton PDFs. When a nuclear modification ratio of the pp and pPb data is constructed, the uncertainties in the scale choices and in proton PDFs effectively cancel and a good agreement between the data and EPPS16 is found, except in some bins at backward rapidities corresponding to large x of the nucleus. To assess the impact of these data on the EPPS16 nuclear PDFs, we use a non-quadratic extension of the Hessian PDF reweighting method. A significant reduction in EPPS16 uncertainties is obtained with the fit supporting strong nuclear shadowing and valence-like antishadowing for gluons. We also indicate the possible extensions needed in the EPPS16 parametrization at large x.

[12]
Title: Re-visiting the bounds on hydrogen-antihydrogen oscillations from diffuse $γ$-ray surveys
Subjects: High Energy Physics - Phenomenology (hep-ph)

Surveys of diffuse $\gamma$-ray in the interstellar medium (ISM) can be used to probe hydrogen-antihydrogen oscillations, by detecting the $\gamma$-ray emission from antihydrogen annihilation. A bound on the oscillation parameter $\delta$ was originally derived by Feinberg, Goldhaber and Steigman (1978). In this paper, we re-visit the original derivation by performing a more detailed analysis that (1) incorporates suppression effects from additional elastic and inelastic processes, (2) treats the ISM as a multi-phase medium, and (3) utilises more recent $\gamma$-ray data from the Fermi Large Area Telescope. We find that suppression from elastic scattering plays a more important role than previously thought, while the multi-phase nature of the ISM affects how the $\gamma$-ray data should be utilised. We derive a more accurate bound on the oscillation period that is about an order of magnitude weaker than the older bound.

[13]
Title: Model independent Analysis of Dirac CP Violating Phase for some well known mixing scenarios
Authors: Sumit K. Garg
Comments: 33 pages, 48 figures. arXiv admin note: text overlap with arXiv:1712.02212
Subjects: High Energy Physics - Phenomenology (hep-ph)

We present a model independent analysis of Leptonic CP violation for some well known mixing scenarios. In particular, we considered modified schemes for Bimaximal(BM), Democratic(DC), Hexagonal(HG) and Tribimaixmal(TBM) mixing for our numerical investigation. These model independent corrections to mixing matrices are parameterized in terms of complex rotation matrices ($U$) with related modified PMNS matrix of the forms \big($U_{ij}^l\cdot V_{M},~V_{M}\cdot U_{ij}^r$ \big ) where $U_{ij}^{l, r}$ is complex rotation in ij sector and $V_{M}$ is unperturbed mixing scheme. We present generic formulae for mixing angles, Dirac CP phase($\delta_{CP}$) and Jarkslog Invariant($J_{CP}$) in terms of correction parameters. The parameter space of each modified mixing case is scanned for fitting neutrino mixing angles using $\chi^2$ approach and the corresponding predictions for Leptonic CP Phase($\delta_{CP}$) and Jarkslog Invariant($J_{CP}$) has been evaluated from allowed parameter space. The obtained ranges are reported for all viable cases.

[14]
Title: Master integrals for the NNLO virtual corrections to $μe$ scattering in QED: the non-planar graphs
Comments: 33 pages, 3 figures. arXiv admin note: text overlap with arXiv:1709.07435
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

We evaluate the master integrals for the two-loop non-planar box-diagrams contributing to the elastic scattering of muons and electrons at next-to-next-to-leading order in QED. We adopt the method of differential equations and the Magnus exponential to determine a canonical set of integrals, finally expressed as a Taylor series around four space-time dimensions, with coefficients written as combination of generalised polylogarithms. The electron is treated as massless, while we retain full dependence on the muon mass. The considered integrals are also relevant for crossing-related processes, such as di-muon production at $e^+e^-$ colliders, as well as for the QCD corrections to top-pair production at hadron colliders. In particular our results, together with the planar master integrals recently computed, represent the complete set of functions needed for the evaluation of the two-loop virtual next-to-next-to-leading order QED corrections to $e\mu\to e\mu$ and $e^+ e^-\to\mu^+\mu^-$.

[15]
Title: Analyticity domain of a Quantum Field Theory and Accelero-summation
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th); Mathematical Physics (math-ph)

From 't Hooft's argument, one expects that the analyticity domain of an asymptotically free quantum field theory is horned shaped. In the usual Borel summation, the function is obtained through a Laplace transform and thus has a much larger analyticity domain. However, if the summation process goes through the process called acceleration by Ecalle, one obtains such a horn shaped analyticity domain. We therefore argue that acceleration, which allows to go beyond standard Borel summation, must be an integral part of the toolkit for the study of exactly renormalisable quantum field theories. We sketch how this procedure is working and what are its consequences.

[16]
Title: A Closer Study of the Framed Standard Model Yielding Testable New Physics plus a Hidden Sector with Dark Matter Candidates
Authors: Jose Bordes (1), H. M. Chan (2), S. T. Tsou (3) ((1) Universitat de Valencia (Spain), (2) Rutherford Appleton Laboratory (United Kingdom) (3) Mathematical Institute University of Oxford (United Kingdom))
Subjects: High Energy Physics - Phenomenology (hep-ph)

This closer study of the FSM: [I] retains the earlier results in offering explanation for the existence of three fermion generations, as well as the hierarchical mass and mixing patterns of leptons and quarks; [II] predicts a vector boson $G$ with mass of order TeV which mixes with $\gamma$ and $Z$ of the standard model. The subsequent deviations from the standard mixing scheme are calculable in terms of the $G$ mass. While these deviations for (i) $m_Z - m_W$, (ii) $\Gamma(Z \rightarrow \ell^+ \ell^-)$, and (iii) $\Gamma(Z \rightarrow {\rm hadrons})$ are all within present experimental errors so long as $m_G > 1$ TeV, they should soon be detectable if the $G$ mass is not too much bigger; [III] suggests that in parallel to the standard sector familiar to us, there is another where the roles of flavour and colour are interchanged. Though quite as copiously populated and as vibrant in self-interactions as our own, it communicates but little with the standard sector except via mixing through a couple of known portals, one of which is the $\gamma-Z-G$ complex noted in [II] above, and the other is a scalar complex which includes the standard model Higgs. As a result, the new sector appears hidden to us as we appear hidden to them, and so its lowest members with masses of order 10 MeV, being electrically neutral and seemingly stable, but abundant, may make eligible candidates as constituents of dark matter. A more detailed summary of these results together with some remarks on the model's special theoretical features can be found in the last section of the text.

[17]
Title: The $Z$ boson in the Framed Standard Model
Authors: Jose Bordes (1), H. M. Chan (2), S. T. Tsou (3) ((1) Universitat de Valencia (Spain), (2) Rutherford Appleton Laboratory (United Kingdom), Mathematical Institute University of Oxford (United Kingdom)(3))
Subjects: High Energy Physics - Phenomenology (hep-ph)

The framed standard model (FSM), constructed initially for explaining the existence of three fermion generations and the hierarchical mass and mixing patterns of quarks and leptons \cite{dfsm,tfsm}, suggests also a "hidden sector" of particles including some dark matter candidates. It predicts in addition a new vector boson $G$, with mass of order TeV, which mixes with the $\gamma$ and $Z$ of the standard model yielding deviations from the standard mixing scheme, all calculable in terms of a single unknown parameter $m_G$. Given that standard mixing has been tested already to great accuracy by experiment, this could lead to contradictions, but it is shown here that for the three crucial and testable cases so far studied (i) $m_Z - m_W$, (ii) $\Gamma(Z \rightarrow \ell^ + \ell^-)$, (iii) $\Gamma(Z \rightarrow$ hadrons), the deviations are all within the present stringent experimental bounds provided $m_G > 1$ TeV, but should soon be detectable if experimental accuracy improves. This comes about because of some subtle cancellations, which might have a deeper reason that is not yet understood. By virtue of mixing, $G$ can be produced at the LHC and appear as a $\ell^+ \ell^-$ anomaly. If found, it will be of interest not only for its own sake but serve also as a window on to the "hidden sector" into which it will mostly decay, with dark matter candidates as most likely products.

[18]
Title: Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel
Subjects: High Energy Physics - Phenomenology (hep-ph)

We examine the sensitivity at a future 100 TeV proton-proton collider to compressed dark sectors whose decay products are invisible due to below-threshold energies and/or small couplings to the Standard Model. This scenario could be relevant to models of WIMP dark matter, where the lightest New Physics state is an (isolated) electroweak multiplet whose lowest component is stable on cosmological timescales. We rely on the additional emission of a hard on-shell $Z$-boson decaying to leptons, a channel with low background systematics, and include a careful estimate of the real and fake backgrounds to this process in our analysis. We show that an integrated luminosity of 30 ab$^{-1}$ would allow exclusion of a TeV-scale compressed dark sector with inclusive production cross section of 0.3 fb, for 1\% background systematic uncertainty and splittings below 5 GeV. This translates to exclusion of a pure higgsino (wino) multiplet with mass of 500 (970) GeV.

[19]
Title: Decay rate and asymmetries of $Σ^+\to pμ^+μ^-$
Subjects: High Energy Physics - Phenomenology (hep-ph)

The LHCb Collaboration has recently reported evidence for the rare hyperon decay $\Sigma^+\to p\mu^+\mu^-$ that is consistent with the standard model expectation. Motivated by this new result we revisit the calculation of this mode including both long and short distance contributions. In the standard model this mode is completely dominated by long distance physics and thus subject to large uncertainties. We present a range of predictions for the rate, the dimuon invariant mass spectrum, and a muon polarisation asymmetry that covers these uncertainties as well as known constraints. We study the interplay between short and long distance contributions which could result in additional asymmetries, but we find that they are negligible within the standard model. We propose a parameterisation of these asymmetries in terms of a couple of constants that can arise from new physics.

### Cross-lists for Fri, 22 Jun 18

[20]  arXiv:1806.07289 (cross-list from physics.hist-ph) [pdf, other]
Title: Naturalness, Extra-Empirical Theory Assessments, and the Implications of Skepticism
Authors: James D. Wells
Subjects: History and Philosophy of Physics (physics.hist-ph); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)

Naturalness is an extra-empirical quality that aims to assess plausibility of a theory. Finetuning measures are one way to quantify the task. However, knowing statistical distributions on parameters appears necessary for rigor. Such meta-theories are not known yet. A critical discussion of these issues is presented, including their possible resolutions in fixed points. Skepticism of naturalness's utility remains credible, as is skepticism to any extra-empirical theory assessment (SEETA) that claims to identify "more correct" theories that are equally empirically adequate. Specifically to naturalness, SEETA implies that one must accept all concordant theory points as a priori equally plausible, with the practical implication that a theory can never have its plausibility status diminished by even a "massive reduction" of its viable parameter space as long as a single theory point still survives. A second implication of SEETA suggests that only falsifiable theories allow their plausibility status to change, but only after discovery or after null experiments with total theory coverage. And a third implication of SEETA is that theory preference then becomes not about what theory is more correct but what theory is practically more advantageous, such as fewer parameters, easier to calculate, or has new experimental signatures to pursue.

[21]  arXiv:1806.07897 (cross-list from astro-ph.CO) [pdf, other]
Title: Beyond subhalos: Probing the collective effect of the Universe's small-scale structure with gravitational lensing
Comments: 24 pages + appendices, 12 figures
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Phenomenology (hep-ph)

Gravitational lensing has emerged as a powerful probe of the matter distribution on subgalactic scales, which itself may contain important clues about the fundamental origins and properties of dark matter. Broadly speaking, two different approaches have been taken in the literature to map the small-scale structure of the Universe using strong lensing, with one focused on measuring the position and mass of a small number of discrete massive subhalos appearing close in projection to lensed images, and the other focused on detecting the collective effect of all the small-scale structure between the lensed source and the observer. In this paper, we follow the latter approach and perform a detailed study of the sensitivity of galaxy-scale gravitational lenses to the ensemble properties of small-scale structure. As in some previous studies, we adopt the language of the substructure power spectrum to characterize the statistical properties of the small-scale density field. We present a comprehensive theory that treats lenses with extended sources as well as those with time-dependent compact sources (such as quasars) in a unified framework for the first time. Our approach uses mode functions to provide both computational advantages and insights about couplings between the lens and source. The goal of this paper is to develop the theory and gain the intuition necessary to understand how the sensitivity to the substructure power spectrum depends on the source and lens properties, with the eventual aim of identifying the most promising targets for such studies.

[22]  arXiv:1806.07971 (cross-list from hep-th) [pdf, ps, other]
Title: Quantum Gauge Transformation, Gauge-Invariant Extension and Angular Momentum Decomposition in Abelian Higgs Model
Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)

I discuss the momentum and angular momentum decomposition problem in the Abelian Higgs model. The usual gauge-invariant extension (GIE) construction is incorporated naturally into the framework of quantum gauge transformation $\grave{a}$ ${\it la}$ Strocchi and Wightman and with this I investigate the momentum and angular momentum separation in a class of GIE conditions which correspond to the so-called "static gauges". Using this language I find that the so-called "generator criterion" does not generally hold even for the dressed physical field. In the case of $U(1)$ symmetry breaking, I generalize the standard GIE construction to include the matter field degrees of freedom so that the usual separation pattern of momentum and angular momentum in the unitarity gauge can be incorporated into the same universal framework. When the static gauge condition could not uniquely fix the gauge, I show that this GIE construction should be expanded to take into account the residual gauge symmetry. In some cases I reveal that the usual momentum or angular momentum separation pattern in terms of the physical dressed field variables needs some type of modification due to the nontrivial commutator structure of the underlying quantum gauge choice. Finally, I give some remarks on the general GIE constructions in connection with the possible commutator issues and modification of momentum and angular momentum separation patterns.

[23]  arXiv:1806.08178 (cross-list from astro-ph.CO) [pdf, other]
Title: Non-Gaussian Features of Primordial Gravitational Waves
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph)

We explore possible non-Gaussian features of primordial gravitational waves by constructing model-independent templates for nonlinearity parameters of tensor bispectrum. Our analysis is based on Effective Field Theory of inflation that relies on no particular model as such and thus the results are quite generic. The analysis further reveals that chances of detecting squeezed limit tensor bispectrum are fairly higher than equilateral limit. We also show that by tuning practically one parameter, namely the speed of propagation of primordial gravitational waves, one can have considerably large tensor non-Gaussianities that may be of interest to upcoming CMB missions.

[24]  arXiv:1806.08273 (cross-list from hep-th) [pdf, other]
Title: Lorentz-violating dimension-five operator contribution to the black body radiation
Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)

We investigate the thermodynamics of a photon gas in an effective field theory model that describes Lorentz violations through dimension-five operators. We explore the electrodynamics of the model which includes higher order derivatives in the Lagrangian that can modify the dispersion relation for the propagation of the photons. We shall focus on the deformed black body radiation spectrum and modified Stefan-Boltzmann law to address the allowed bounds on the Lorentz-violating parameter.

### Replacements for Fri, 22 Jun 18

[25]  arXiv:1506.04415 (replaced) [pdf, ps, other]
Title: Open-flavor strong decays of open-charm and open-bottom mesons in the $^3P_0$ model
Journal-ref: Phys. Rev. D 97, 114020 (2018)
Subjects: High Energy Physics - Phenomenology (hep-ph)
[26]  arXiv:1702.04526 (replaced) [pdf, other]
Title: Sterile neutrino dark matter from right-handed neutrino oscillations
Comments: Version to appear in PRD
Journal-ref: Phys. Rev. D 97, 115021 (2018)
Subjects: High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO)
[27]  arXiv:1709.04925 (replaced) [pdf, other]
Title: Interpretation of quantum mechanics with indefinite norm
Comments: 18 pages, 3 figures. v2: added discussion about oscillations into sterile neutrinos with negative norm and MiniBoone anomaly; extra references
Subjects: Quantum Physics (quant-ph); High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
[28]  arXiv:1710.04127 (replaced) [pdf, other]
Title: $R_{J/ψ}$ confronts $R_D$ and $R_{D^*}$
Comments: 9 pages, 1 figure; Numerical analysis improved, added discussion on NP in b -&gt; c mu nu in Sec II, added a new section III to discuss the impact of individual measurements on NP in b -&gt; c tau nu, references added
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
[29]  arXiv:1711.02970 (replaced) [pdf, other]
Title: Sub-MeV Self Interacting Dark Matter
Authors: Bhavesh Chauhan
Comments: Lyman Alpha constraints addressed; conclusions unchanged; to appear in Phys. Rev. D
Subjects: High Energy Physics - Phenomenology (hep-ph)
[30]  arXiv:1711.05292 (replaced) [pdf, other]
Title: CP tests of Higgs couplings in $t\bar{t}h$ semileptonic events at the LHC
Subjects: High Energy Physics - Phenomenology (hep-ph)
[31]  arXiv:1712.02021 (replaced) [pdf, other]
Title: Confronting the DAMPE Excess with the Scotogenic Type-II Seesaw Model
Comments: public version in Chinese Physics C
Journal-ref: Chinese Physics C Vol. 42, No. 8 (2018) 083104
Subjects: High Energy Physics - Phenomenology (hep-ph)
[32]  arXiv:1801.03585 (replaced) [pdf, other]
Title: Indications of an unexpected signal associated with the GW170817 binary neutron star inspiral
Comments: 11 pages, 3 figures (minor edits and reformatting to bring it closer to the published version)
Journal-ref: Astroparticle Physics 103 (2018) 1-6
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); High Energy Physics - Phenomenology (hep-ph)
[33]  arXiv:1802.02391 (replaced) [pdf, other]
Title: High scale boundary conditions with an additional complex singlet
Comments: 23 pages, 13 figures; version accepted for publication
Subjects: High Energy Physics - Phenomenology (hep-ph)
[34]  arXiv:1803.01224 (replaced) [pdf, other]
Title: Coherent Elastic Neutrino Nucleus Scattering (CE$ν$NS) as a probe of $Z'$ through kinetic and mass mixing effects
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
[35]  arXiv:1804.00277 (replaced) [pdf, other]
Title: Realization of Sneutrino Self-interacting Dark Matter in the Focus Point Supersymmetry
Authors: Bin Zhu, Ran Ding, Ying Li
Comments: revised version, add the constraints from bullet cluster, update figures and clarify statements
Subjects: High Energy Physics - Phenomenology (hep-ph)
[36]  arXiv:1804.00938 (replaced) [pdf, ps, other]
Title: Pseudoscalar or vector meson production in non-leptonic decays of heavy hadrons
Comments: 54 pages, 7 figures, 13 tables; v2: 60 pages, 9 figures, 14 tables, discussion added, references added, version to appear in Eur.Phys.J. C
Subjects: High Energy Physics - Phenomenology (hep-ph)
[37]  arXiv:1804.08673 (replaced) [pdf, other]
Title: Low energy constituent quark and pion effective couplings to external electromagnetic field and a weak magnetic field
Comments: 4 pages, work presented by F.L.B, at the XIV International Workshop on Hadron Physics, Florianopolis, Brazil, March 2018
Subjects: High Energy Physics - Phenomenology (hep-ph)
[38]  arXiv:1805.00863 (replaced) [pdf, ps, other]
Title: Are really golden theories in supersymmetry excluded by LHC?
Authors: Abhijit Samanta
Comments: 4 pages, 2 figures, results have been more focused and clarified
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
[39]  arXiv:1805.05109 (replaced) [pdf, other]
Title: Multi-loop techniques for massless Feynman diagram calculations
Comments: Review article. LaTeX file with feynMF package. (v2) references added and minor typos corrected. 65 pages, 8 figures. (v1) 64 pages, 8 figures
Subjects: High Energy Physics - Theory (hep-th); Statistical Mechanics (cond-mat.stat-mech); High Energy Physics - Phenomenology (hep-ph)
[40]  arXiv:1805.08773 (replaced) [pdf, other]
Title: Exploring compensated isocurvature perturbations with CMB spectral distortion anisotropies
Comments: 26 pages, 4 figures; v2: numerical calculation corrected, constraints changed
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph)
[41]  arXiv:1805.09292 (replaced) [pdf, other]
Title: Systematic analysis of radiative symmetry breaking in models with extended scalar sector
Comments: 31 pages, 8 figures; v2: comparison with the Gildener-Weinberg method extended with an analysis of the mixing angle, references added, minor modifications
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
[42]  arXiv:1805.09520 (replaced) [pdf, ps, other]
Title: A potential scenario for the Majorana neutrino detection at future lepton colliders
Authors: Yang Zhang, Bin Zhang
Subjects: High Energy Physics - Phenomenology (hep-ph)
[43]  arXiv:1805.11402 (replaced) [pdf, other]
Title: Establishing a Search for $b \rightarrow s \ell^{+} \ell^{-}$ Anomalies at the LHC
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
[44]  arXiv:1806.02489 (replaced) [pdf, ps, other]
Title: Threshold effects in $χ_{\rm c}(2P)$ and $χ_{\rm b}(3P)$ multiplets and $J/Ψρ, J/Ψω$ hidden-flavor strong decays of the $X(3872)$
Subjects: High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
[45]  arXiv:1806.05720 (replaced) [pdf, other]
Title: Quark-antiquark potential from a deformed AdS/QCD