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.
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
