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NA48/2 Results on Rare Kaon Decays
A most precise measurement of the charged kaon semileptonic form factors has been obtained from 4.4 million Ke3 and 2.3 million Kμ3 events collected in 2004. In addition, the branching ratio of the K± → π±π0e+e− decay, never observed so far, has been obtained from a sample of 4919 candidates with 4....
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Lenguaje: | eng |
Publicado: |
World Scientific
2021
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Acceso en línea: | https://dx.doi.org/10.1142/9789811233913_0064 http://cds.cern.ch/record/2824772 |
Sumario: | A most precise measurement of the charged kaon semileptonic form factors has been obtained from 4.4 million Ke3 and 2.3 million Kμ3 events collected in 2004. In addition, the branching ratio of the K± → π±π0e+e− decay, never observed so far, has been obtained from a sample of 4919 candidates with 4.9% background contamination. The study of the kinematic space is performed, and several P, CP-violating asymmetries are evaluated. |
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