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arXiv · hep-lat/0107002

Responses of hadrons to chemical potential at finite temperature

TARO Collaboration·S. Choe·Ph. de Forcrand·M. García Pérez·S. Hioki·Y. Liu·H. Matsufuru·O. Miyamura·A. Nakamura·I. -O. Stamatescu·T. Takaishi·T. Umeda
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Abstract

We present a framework to compute the responses of hadron masses to the chemical potential in lattice QCD simulations. As a first trial, the screening mass of the pseudoscalar meson and its first and second responses are evaluated. We present results on a $16\times 8^2\times 4$ lattice with two flavors of staggered quarks below and above $T_c$. The responses to both the isoscalar and isovector chemical potentials are obtained. They show different behavior in the low and the high temperature phases, which may be explained as a consequence of chiral symmetry breaking and restoration, respectively.

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TARO Collaboration, S. Choe, Ph. de Forcrand, M. García Pérez, S. Hioki, Y. Liu, H. Matsufuru, O. Miyamura, A. Nakamura, I. -O. Stamatescu, T. Takaishi, T. Umeda. 2001-10-22. Responses of hadrons to chemical potential at finite temperature. https://doi.org/10.1103/physrevd.65.054501

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