論文

査読有り 本文へのリンクあり
2014年9月12日

Emergence of soft quark excitations by the coupling with a soft mode of the QCD critical point

PHYSICAL REVIEW D
  • Masakiyo Kitazawa
  • ,
  • Teiji Kunihiro
  • ,
  • Yukio Nemoto

90
11
DOI
10.1103/PhysRevD.90.116008

We study the quark spectrum at nonzero temperature and density near the
critical point (CP) of the chiral phase transition incorporating effects of the
scalar- and pseudoscalar-density fluctuations in a chiral effective model with
a nonzero current quark mass. It is known that the soft mode associated with
the second-order transition at the CP lies in the spacelike region of the
scalar-density fluctuation. We find that the soft mode influences the quark
spectrum significantly near the CP, resulting in the shift of the quasiquark
peak. Effects of the composite stable pions on the quark spectrum near the CP
are also discussed.

リンク情報
DOI
https://doi.org/10.1103/PhysRevD.90.116008
arXiv
http://arxiv.org/abs/arXiv:1409.3733
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000347193800009&DestApp=WOS_CPL
URL
http://arxiv.org/abs/1409.3733v2
URL
http://arxiv.org/pdf/1409.3733v2 本文へのリンクあり
ID情報
  • DOI : 10.1103/PhysRevD.90.116008
  • ISSN : 2470-0010
  • arXiv ID : arXiv:1409.3733
  • Web of Science ID : WOS:000347193800009

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