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arXiv · 1604.07708

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

E. Kou·A. Le Yaouanc·A. Tayduganov
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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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E. Kou, A. Le Yaouanc, A. Tayduganov. 2016-04-26. Angular analysis of B -> J/psi K1 : towards a model independent determination of the photon polarization with B-> K1 gamma. https://doi.org/10.1016/j.physletb.2016.10.013

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