φ-meson production in pp collisions close to threshold

被引：3
|
作者：
Hartmann, M [1 ]
Maeda, Y
Keshelashvilli, I
Koch, HR
Mikirtichyants, S
Barsov, S
Borgs, W
Büscher, M
Hejny, V
Kleber, V
Koptev, V
Kulessa, P
Mersmann, T
Mussgiller, A
Ohm, H
Pysz, K
Schleichert, R
Stein, HJ
Ströher, H
Watzlawik, KH
Wüstner, P
机构：
[1] Forschungszentrum Julich, Inst Kernphys, D-52424 Julich, Germany
[2] Petersburg Nucl Phys Inst, Gatchina 188350, Russia
[3] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
[4] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany
[5] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
[6] Univ Munster, Inst Kernphys, D-48149 Munster, Germany
[7] Forschungszentrum Julich, Zent Inst Elekt, D-52424 Julich, Germany
来源：
NUCLEAR PHYSICS A | 2005年 / 755卷
关键词：
D O I：
10.1016/j.nuclphysa.2005.03.126
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：
New data on phi-meson production in pp collisions have been obtained at the ANKE facility of COSY-Julich. These data will provide the energy dependence of the total cross section down to an excess energy of 19 MeV above threshold. In combination with the existing SPES-III and COSY-TOF results on omega-meson production the phi/omega production ratio at this low excess energy will be extracted. As an exciting new aspect an enhancement in the invariant phi p mass spectrum is observed at a mass around 1.965 GeV/c(2).
引用
收藏
页码：459C / 462C
页数：4
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