News on PHOTOS Monte Carlo:γ*→π+π-(γ)and K±→π+π-e±ν(γ)

中国物理C, 2010, 34(6): 889-895.

^1, , ^2,

1.Department of Physics,Hangzhou Normal University,Hangzhou 310036,China;Institute of Nuclear Physics,PAN,Kraków,ul.Radzikowskiego 152,Poland

2.Institute of Nuclear Physics,PAN,Kraków,ul.Radzikowskiego 152,Poland;CERN PH-TH,CH-1211 Geneva 23,Switzerland

基金项目: Polish Government(N202 06434(2008-2011) EU Marie Curie Research Training Network grant under the contract(MRTN-CT-2006-0355505)

News on PHOTOS Monte Carlo:γ*→π+π-(γ)and K±→π+π-e±ν(γ)

XU Qing-Jun ^1, , Z.W(a)s ^2,

1.Department of Physics,Hangzhou Normal University,Hangzhou 310036,China;Institute of Nuclear Physics,PAN,Kraków,ul.Radzikowskiego 152,Poland

2.Institute of Nuclear Physics,PAN,Kraków,ul.Radzikowskiego 152,Poland;CERN PH-TH,CH-1211 Geneva 23,Switzerland

Keywords： Monte Carlo generator

PHOTOS Monte Carlo is widely used for simulating QED effects in decay of intermediate particles and resonances.It can be easily connected to other main process generators.In this paper we consider decaying processes γ*→π+π-(γ)and K±→π+π-e±ν(γ)in the framework of Scalar QED.These two processes are interesting not only for the technical aspect of PHOTOS Monte Carlo,but also for precision measurement ofαQED(Mz),g-2,as well as ππ scattering lengths.

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News on PHOTOS Monte Carlo:γ*→π+π-(γ)and K±→π+π-e±ν(γ)

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