K*(892) production in Au+Au and pp collisions at √sNN=200 GeV at STAR

被引：8
|
作者：
Zhang, HB [1 ]
机构：
[1] Yale Univ, Dept Phys, New Haven, CT 06520 USA
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2004年 / 30卷 / 01期
关键词：
D O I：
10.1088/0954-3899/30/1/071
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Mid-rapidity K*(0)(892) --> Kpi and K*(+/-)(892) --> K(S)(0)pi(+/-) are measured in Au+Au and pp collisions at rootS(NN) = 200 GeV using the STAR detector at RHIC. The K*(0)(892) mass is systematically shifted at small transverse momentum for both Au+Au and pp collisions. The K*(0)(892) transverse mass spectra are measured in Au+Au collisions at different centralities and in pp collisions. The K*(0)(892) mean transverse momentum as a function of the collision centrality is compared with those of identified, pi(-), K- and (p) over bar. The K*/K and phi/K* ratios are compared with measurements in A+A, pp, (p) over barp, e(+)e(-) collisions at various colliding energies. The physics implications of these measurements are also discussed.
引用
收藏
页码：S577 / S582
页数：6
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