Angular analysis of B -> J/psi K1 : towards a model independent determination of the photon polarization with B-> K1 gamma

Abstract : We propose a model independent extraction of the hadronic information needed to determine the photon polarization of the b-> s gamma process by the method utilizing the B -> K1 gamma -> K pi pi gamma angular distribution. We show that exactly the same hadronic information can be obtained by using the B -> J/psi K1 -> J/psi K pi pi channel, which leads to a much higher precision.
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http://hal.in2p3.fr/in2p3-01308068
Contributeur : Sabine Starita <>
Soumis le : mercredi 27 avril 2016 - 11:04:54
Dernière modification le : jeudi 18 janvier 2018 - 01:51:05

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E. Kou, A. Le Yaouanc, A. Tayduganov. Angular analysis of B -> J/psi K1 : towards a model independent determination of the photon polarization with B-> K1 gamma. Physics Letters B, Elsevier, 2016, 763, pp. 66-71. 〈http://www.sciencedirect.com/science/article/pii/S0370269316305846?via%3Dihub〉. 〈10.1016/j.physletb.2016.10.013〉. 〈in2p3-01308068〉

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