Pion, muon decays and weak interaction symmetries
نویسندگان
چکیده
منابع مشابه
Probing the Standard Model via rare pion and muon decays
The PIBETA collaboration has used a non-magnetic pure CsI calorimeter operating at the Paul Scherrer Institute to collect the world’s largest sample of rare pion and muon decays. We have extracted the absolute π → πeν decay branching ratio with the 0.55% total uncertainty. The π → eνγ data set was used to extract weak axial and vector form factors FA and FV , yielding a significant improvement ...
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We calculate the decay of pionium atoms into two photons. The pion polariz-ability gives rise to a 10% correction to the corresponding decay width for pointlike pions. This opens the possibility to obtain the polarizability of the charged pion from a future measurement of this decay width if the ππ-scattering lengths are known to better than 5% precision. We also comment on the contribution of ...
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Recent results on rare kaon and pion decays are reviewed and prospects for future experiments are discussed.
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2010
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2010.05.009