Spectral continuity of vector mesons in dense QCD

Naoki Yamamoto, Tetsuo Hatsuda, Motoi Tachibana

研究成果: Article査読

抄録

Vector mesons in three-flavor quark matter are studied on the basis of the in-medium QCD sum rules. We derive formulas relating the masses of vector mesons to chiral and diquark condensates at low, intermediate and high density regions. Due to the mass splitting caused by the diquark condensate, the singlet vector meson disappears from the low-energy spectrum, while the octet vector mesons survive as light excitations with a mass comparable to the fermion gap, which is closely connected to the light gluonic modes at high density.

本文言語English
ページ(範囲)84-87
ページ数4
ジャーナルProgress of Theoretical Physics Supplement
174
DOI
出版ステータスPublished - 2008
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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