| News on PHOTOS Monte Carlo： γ＊→π^＋π^-（γ） and K^±→π^＋π^-e^±υ（γ） |
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| 作者姓名： | 徐庆君 Z. Was |
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| 作者单位： | Department of Physics, Hangzhou Normal University, Hangzhou 310036, China; Institute of Nuclear Physics, PAN, Kraków, ul. Radzikowskiego 152, Poland; CERN PH-TH, CH-1211 Geneva 23, Switzerland |
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| 基金项目： | Supported by EU Marie Curie Research Training Network grant under the contract No. MRTN-CT-2006-0355505 and Polish Government grant N202 06434 （2008-2011） |
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| 摘 要： | 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^±υ（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 of αED（Mz）, g--2, as well as ππ scattering lengths.
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| 关 键 词： | 蒙特卡罗技术 量子电动力学 π 新闻 图片 共振效应 衰减过程 测量精度 |
| 收稿时间： | 2010-01-26 |
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