ANISOTROPY OF DILEPTON EMISSION FROM NUCLEAR COLLISIONS

被引：47

作者：

BRATKOVSKAYA, EL

TERYAEV, OV

TONEEV, VD

机构：

[1] Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna, Moscow region

来源：

PHYSICS LETTERS B | 1995年 / 348卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(95)00164-G

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Attention is paid to studying the angular characteristics of e(+)e(-) pairs created in collisions with nuclear targets at intermediate and relativistic energies. Arising due to general spin and angular momentum constraints, the dilepton anisotropy seems to be quite sensitive to the contribution of different sources and may be used for disentangling these sources (or models) as well as an additional signature of a possible chiral symmetry restoration and phase transition of hadrons into the quark-gluon plasma. An anisotropy estimate for some dilepton sources is given and its relevance to the problems mentioned is discussed.

引用

页码：283 / 289

页数：7

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