Prediction of a Photon Peak in Relativistic Heavy Ion Collisions

被引：15

作者：

Casalderrey-Solana, Jorge ^{[1
]}

Mateos, David ^{[2
]}

机构：

[1] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA

[2] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 19期

关键词：

HADRONIC SPECTRAL FUNCTIONS; STATISTICAL HADRONIZATION; SPS;

D O I：

10.1103/PhysRevLett.102.192302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that if a flavorless vector meson remains bound after deconfinement, and if its limiting velocity in the quark-gluon plasma is subluminal, then this meson produces a distinct peak in the spectrum of thermal photons emitted by the plasma. We also demonstrate that this effect is a universal property of all strongly coupled, large-N-c plasmas with a gravity dual. For the J/psi, the corresponding peak lies between 3 and 5 GeV and could be observed in heavy-ion collisions at the LHC.

引用

页数：4

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