φ-meson production and the in-medium φ-width in proton-nucleus collisions

被引：0
|
作者：
Hartmann, M. [1 ]
Kiselev, Yu. T.
Paryev, E. Ya.
Polyanskiy, A. [1 ]
Schade, H.
Wilkin, C.
机构：
[1] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany
来源：
INTERNATIONAL WORKSHOP ON CHIRAL SYMMETRY IN HADRONS AND NUCLEI | 2010年 / 1322卷
基金：
美国国家科学基金会; 美国能源部;
关键词：
phi meson production; nuclear medium effects; INCLUSIVE PION-PRODUCTION; NEAR-THRESHOLD PRODUCTION; COSY-JULICH; PHOTOPRODUCTION; MATTER; HADRONS; ANKE;
D O I：
暂无
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：
The production of phi-mesons in collisions of 2.83 GeV protons with C, Cu, Al, and Au targets has been measured with the ANKE magnetic spectrometer at the Cooler Synchrotron COSY. The phi-mesons were detected at small angles via their K+K- decay. The measured target mass dependence of the production cross section can be related to the in-medium phi width. First comparisons with model calculations suggest a significant broadening of the phi-width relative to its vacuum value of 4.3 MeV/c(2).
引用
收藏
页码：349 / +
页数：2
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