Critical mass in nonzero temperature QCD with staggered fermions

I. M. Barbour; A. J. Bell; E. G. Klepfish

doi:10.1016/0550-3213(93)90294-y

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arXiv · hep-lat/9205019

Critical mass in nonzero temperature QCD with staggered fermions

I. M. Barbour·A. J. Bell·E. G. Klepfish

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Abstract

The behaviour of the chiral condensate in QCD is investigated by means of a study of the distribution of the zeros of the partition function in the complex quark mass plane. Simulations are performed at fixed temperature on three different spatial volumes at $β=5.04$ and at $β=4.9$ and $β=5.2$ on a $4^4$ lattice. Evidence is found for a chirally related transition at non-zero quark mass in the intermediate coupling region for $β< 5.2 $ but superimposed upon a smooth behaviour for the condensate. The critical mass at which this transition is found is only weakly dependent on the spatial volume and decreas with decreasing temperature.

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I. M. Barbour, A. J. Bell, E. G. Klepfish. 1992-05-23. Critical mass in nonzero temperature QCD with staggered fermions. https://doi.org/10.1016/0550-3213(93)90294-y

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