arXiv:1604.07708·v1·High Energy Physics — Phenomenology
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🇫🇷
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.
Comments: 12 pages, 1 figure