The scalar does not decay at finite temperatures

Debasish Banerjee; Rajiv Gavai; Sourendu Gupta

The scalar does not decay at finite temperatures

High Energy Physics - Lattice 2010-11-02 v1

Authors: Debasish Banerjee , Rajiv Gavai , Sourendu Gupta

Abstract

We investigate medium effects on mesonic screening lengths for QCD with 2-flavours of dynamical staggered quarks on lattices with cutoff a=1/6T. Denoting the cross-over temperature by $T_c$ , we vary the temperature T from 0.89 $T_c$ to 1.92 $T_c$ , spanning both the hadronic and quark gluon plasma phases. While chiral symmetry restoration in the vector channel appears to take place near $T_c$ , it is seen in the scalar channel only above 1.33 $T_c$ . Varying spatial lattice sizes, we find very little volume dependence in our results at 0.94 $T_c$ . We discuss the stability of the scalar meson at these temperatures.

Keywords

finite temperature qcd qcd phase transitions lattice qcd

Cite

@article{arxiv.1011.0310,
  title  = {The scalar does not decay at finite temperatures},
  author = {Debasish Banerjee and Rajiv Gavai and Sourendu Gupta},
  journal= {arXiv preprint arXiv:1011.0310},
  year   = {2010}
}

Comments

Talk presented at The XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010, Villasimius, Italy

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