1-15 Nucleon Pole Contribution in the pp→ppK+K- Reaction below the Φ Meson Threshold  

作　　者：Xie Jujun 

机构地区：[1]不详

出　　处：《IMP & HIRFL Annual Report》2014年第1期20-20,共1页中国科学院近代物理研究所和兰州重离子研究装置年报（英文版）

摘　　要：The meson production in nucleon-nucleon collisions near threshold has the potential to gain information onhadron properties and also plays an important role in exploring the baryon spectroscopy[1]. In recent years, theexperimental database on the reaction of pp!ppK+K near threshold has been expanded significantly. In additionto the measurements of the total and differential cross sections, below the threshold of the production of the ?meson, performed experimentally with COSY-11 and ANKE detectors at the cooler synchrotron COSY in Germany,invariant mass distributions of various subsystems have been obtained at low energies. Unlike above the thresholdof the production of the ? meson, in the low energy region, we do not need to separate the non-? from the ?contribution, and due to the fact that the data were spread over a wide range of K+K?? invariant masses, it has aspecial advantage to investigate the scalar mesons a0(980)$ and f0(980) which are dynamically generated from theinteractions of K￣ K, ππ, and πη treated as coupled channels in I=0 and I=1, respectively. Both of them couplestrongly to the K￣K channel.

关 键 词：PP ADVANTAGE total range has COSY over wide 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]