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Study of the finite density state based on SU(2) lattice QCD

✍ Scribed by Shin Muroya; Atsushi Nakamura; Chiho Nonaka

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
264 KB
Volume
119
Category
Article
ISSN
0920-5632

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✦ Synopsis

We report our recent numerical studies on two-color QCD with Wilson fermions. First the phase structure of the system in (n, p)-plane is analyzed by measuring Polyakov line, baryon number density, gluon energy density and Polyakov line susceptibility. Then meson and baryon (di-quark) propagators are investigated. We find that the vector meson mass decreases near pc. This phenomena can be related to the low-mass lepton-pair enhancement observed in CERES experiment. Since our lattice is small, in order to confirm the results, we calculate both periodic and anti-periodic boundary condition cases. Preliminary calculations of color averaged, symmetric and anti-symmetric forces of qq system obtained from Polyakov line correlations, and gluon propagators are reported.

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