Theta vacuum effects on QCD phase diagram

Yuji Sakai, Hiroaki Kouno, Takahiro Sasaki, Masanobu Yahiro

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Theta vacuum effects on the QCD phase structure in the μ- T plane are studied by using the Polyakov-loop extended Nambu-Jona-Lasinio model and its extension, where μ is the quark chemical potential and T is temperature, respectively. As the parameter Θ of the theta vacuum increases, the chiral transition becomes stronger. For large Θ, it eventually becomes first order even at zero ν

Original languageEnglish
Pages (from-to)349-355
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number4
Publication statusPublished - Nov 17 2011

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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