Angular analysis of B -> J/psi K-1: Towards a model independent determination of the photon polarization with B -> K-1 gamma

作者：Kou E^*; Le Yaouanc A; Tayduganov A

来源：Physics Letters B, 2016, 763: 66-71.

DOI：10.1016/j.physletb.2016.10.013

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 K-1 -> J/psi K pi pi channel, which leads to a much higher precision.

• 出版日期2016-12-10