2013/12/16 by Y. Maezawa, Maezawa, Y., A. Bazavov +7
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #hep-lat
paper · pdf · doi:10.48550/arxiv.1312.4375
7 pages, talk presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), 29 July - 3 August 2013, Mainz, Germany
arxiv created 2013/12/16 · arxiv updated 2013/12/17
We report on the first study of the screening properties of the mesonic excitations with strange (s) and charm (c) quarks, specifically the ground states of the pseudo-scalar and vector meson excitations for the ss, sc and cc flavor combinations, using the Highly Improved Staggered Quark action with dynamical physical strange quark and nearly-physical up and down quarks. By comparing with their respective vacuum meson masses and by investigating the influence of the changing temporal boundary conditions of the valence quarks we study the thermal modifications of these mesonic excitations. While the ss states show significant modifications even below the chiral crossover temperature Tc, the modifications of the open-charm and charmonium like states become visible only for temperatures T\gtrsim Tc and T\gtrsim1.2Tc, respectively.