Date: Mon, 30 Jul 12 00:06:31 GMT Subject: hep-lat daily 1 new + 1 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any comments regarding submissions directly to submitter. ------------------------------------------------------------------------------ Archives at http://arxiv.org/ To unsubscribe, e-mail To: hep-lat@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Wed 25 Jul 12 20:00:00 GMT to Fri 27 Jul 12 20:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1207.6615 Date: Fri, 27 Jul 2012 18:59:28 GMT (103kb) Title: Taste symmetry breaking at finite temperature Authors: Edwin Laermann, Fabrizio Pucci Categories: hep-lat Comments: 14 pages, 27 figures, 4 tables Report-no: BI-TP 2012/33 \\ The breaking of the taste symmetry is studied in the temperature range between 140 MeV to 550 MeV. In order to investigate this violation we have calculated the screening masses of the various taste states fitting the exponential decay of the spatial correlators. The computation has been performed using dynamical Nf = 2+1 gauge field configurations generated with the p4 staggered action along the Line of Constant Physics (LCP) defined by a pion mass $m_\pi$ of approximately 220 MeV and the kaon mass $m_K$ equals 500 MeV. For temperatures below the transition an agreement with the predictions of the staggered chiral perturbation theory has been found and no temperature effect can be observed on the taste violation. Above the transition the taste splitting still shows an O(a^2) behavior but with a temperature dependent slope. In addition to the analysis done for the pion multiplet we have performed an analogous computation for the light-strange and strange mesons and also looked at the scalar, vector and axial vector channels to understand how the multiplets split at finite temperature. Finally the temperature dependence of the pion decay constant $f_{\pi}$ is investigated to get further information about the chiral symmetry restoration. \\ ( http://arxiv.org/abs/1207.6615 , 103kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1207.6523 (*cross-listing*) Date: Fri, 27 Jul 2012 12:19:47 GMT (114kb) Title: On the intrinsic width of the chromoelectric flux tube in finite temperature LGTs Authors: Michele Caselle and Paolo Grinza Categories: hep-th hep-lat Comments: 1+10 pages, 1 figure \\ We propose three different lattice operators to measure the intrinsic width \xi_I of the chromoelectric flux tube in pure lattice gauge theories. In order to test these proposals we evaluate them for SU(2) and Ising LGTs in (2+1) dimensions in the vicinity of the deconfinement transition. Using dimensional reduction, we could perform the calculation in the effective 2d spin model using standard S-matrix techniques. We consistently found the same result for the three lattice operators. This result can be expressed in terms of the finite temperature string tension as follows \xi_I=\frac{T}{2\sigma(T)} and implies that the intrinsic width of the flux tube diverges as the deconfinement transition is approached. \\ ( http://arxiv.org/abs/1207.6523 , 114kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1109.0118 (*cross-listing*) replaced with revised version Fri, 27 Jul 2012 14:21:35 GMT (1059kb) Title: Emergence of Space-Time from Topologically Homogeneous Causal Networks Authors: Giacomo Mauro D'Ariano and Alessandro Tosini Categories: gr-qc hep-lat quant-ph Comments: This manuscript supersedes arXiv:1008.4805v1. Submitted to Studies in History and Philosophy of Modern Physics special Issue on Emergent Space-Time \\ ( http://arxiv.org/abs/1109.0118 , 1059kb) ------------------------------------------------------------------------------ \\ arXiv:1204.5425 (*cross-listing*) replaced with revised version Fri, 27 Jul 2012 16:55:17 GMT (1393kb,D) Title: Excited and exotic charmonium spectroscopy from lattice QCD Authors: Liuming Liu, Graham Moir, Michael Peardon, Sin\'ead M. Ryan, Christopher E. Thomas, Pol Vilaseca, Jozef J. Dudek, Robert G. Edwards, B\'alint Jo\'o, David G. Richards Categories: hep-ph hep-lat Comments: 33 pages, 17 figures; v2: minor changes to reflect published version Report-no: TCDMATH 12-04; JLAB-THY-12-1510 Journal-ref: JHEP 07 (2012) 126 DOI: 10.1007/JHEP07(2012)126 \\ ( http://arxiv.org/abs/1204.5425 , 1393kb) ------------------------------------------------------------------------------ \\ arXiv:1206.6936 (*cross-listing*) replaced with revised version Fri, 27 Jul 2012 02:06:38 GMT (2004kb) Title: Dimensional Transmutation by Monopole Condensation in QCD Authors: Y. M. Cho Categories: hep-th hep-lat \\ ( http://arxiv.org/abs/1206.6936 , 2004kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arXiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arXiv.org/help/ For a list of archive mirror sites, see http://arXiv.org/servers.html ----------------------------------------------------------------------------- Third-party submissions cause excessive problems. Author self-submissions are exceedingly preferred. E-mail submissions have been discontinued in favor of better support for Web submissions. See http://arXiv.org/help/uploads