K1-Dominance of the Ke3 form factor and Sirlin's relation |
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| Authors: | K Yamada |
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| Institution: | 1. Department of Physics and Astronomy, University of Rochester, Rochester, NY 14672, USA;2. Fermi National Accelerator Laboratory, Batavia, IL 60510, USA |
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| Abstract: | We discuss the precise momentum dependence of the Ke3 form factor f+(t) by studying some of the recent experimental results on K0L → π± e? ν decays. The parametrization of f+(t) based on the assumption of K1-dominance can considerably improve the agreement of Sirlin's relation with existing data. |
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