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High Energy Physics - Lattice

New submissions

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New submissions for Thu, 22 Feb 18

[1]  arXiv:1802.07718 [pdf, other]
Title: High statistics lattice study of stress tensor correlators in pure $SU(3)$ gauge theory
Subjects: High Energy Physics - Lattice (hep-lat)

We compute the Euclidean correlators of the stress tensor in pure $SU(3)$ Yang-Mills theory at finite temperature at zero and finite spatial momenta with lattice simulations. We perform continuum extrapolations using $N_\tau=10,12,16,20$ lattices with renormalized anisotropy 2. We use these correlators to estimate the shear viscosity of the gluon plasma in the deconfined phase. For $T=1.5T_c$ we obtain $\eta/s=0.17(2)$.

Cross-lists for Thu, 22 Feb 18

[2]  arXiv:1802.07711 (cross-list from hep-ph) [pdf, ps, other]
Title: The electromagnetic multipole moments of the charged open-flavor $Z_{\bar cq}$ states
Authors: K. Azizi, U. Ozdem
Comments: 11 pages, 2 figures and 2 tables
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex); High Energy Physics - Lattice (hep-lat)

The electromagnetic multipole moments of the open-flavor $Z_{\bar cq}$ states are investigated by assuming a diquark-antidiquark picture for their internal structure and quantum numbers $J^{PC} = 1^{+-}$ for their spin-parity. In particular, their magnetic and quadrupole moments are extracted in the framework of light-cone QCD sum rule by the help of the photon distribution amplitudes. The electromagnetic multipole moments of the open-flavor $Z_{\bar cq}$ states are important dynamical observables, which encode valuable information on their underlying structure. The results obtained for the magnetic moments of different structures are considerably large and can be measured in future experiments. We obtain very small values for the quadrupole moments of $Z_{\bar cq}$ states indicating a nonspherical charge distribution.

Replacements for Thu, 22 Feb 18

[3]  arXiv:1802.07157 (replaced) [pdf, ps, other]
Title: Comment on "A structural test for the conformal invariance of the critical 3d Ising model" by S. Meneses, S. Rychkov, J. M. Viana Parente Lopes and P. Yvernay. arXiv:1802.02319
Comments: 6 pages, typo corrected in the title
Subjects: High Energy Physics - Theory (hep-th); Statistical Mechanics (cond-mat.stat-mech); High Energy Physics - Lattice (hep-lat)
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