Strong and electromagnetic J/ψ and ψ(2S) decays into pion and kaon pairs  

作　　者：Henryk Czyz Agnieszka Grzelińska 

机构地区：[1]Institute of Physics,University of Silesia [2]Institute of Nuclear Physics Polish Academy of Sciences

出　　处：《Chinese Physics C》2010年第6期855-859,共5页中国物理C（英文版）

基　　金：Supported by EU 6th Framework Programme under contract MRTN-CT-2006-035482 (FLAVIAnet);EU Research Programmes at LNF,FP7,Transnational Access to Research Infrastructure (TARI),Hadron Physics2-Integrating Activity,Contract No.227431

摘　　要：We discuss interference effects important for the form factors extraction in the vicinity of J/ψ and ψ（2S） resonances in combination with resonance parameters determination. The implementation to the Monte Carlo event generator PHOKHARA of the J/ψ and ψ（2S） contributions to the muon, pion and kaon pairs production associated with a photon at next-to-leading order is also described.We discuss interference effects important for the form factors extraction in the vicinity of J/ψ and ψ（2S） resonances in combination with resonance parameters determination. The implementation to the Monte Carlo event generator PHOKHARA of the J/ψ and ψ（2S） contributions to the muon, pion and kaon pairs production associated with a photon at next-to-leading order is also described.

关 键 词：narrow resonances radiative return Monte Carlo generators 

分 类 号：O572.33[理学—粒子物理与原子核物理] TL594[理学—物理]