Stokes Vector of Photon in the Decays B^0 -> rho^0 gamma and B^0 -> K^* gamma

Details Stokes Vector of Photon in the Decays B^0 -> rho^0 gamma and B^0 -> K^* gamma Stokes Vector of Photon in the Decays B^0 -> rho^0 gamma and B^0 -> K^* gamma

2004-03-19

arxiv.org/abs/hep-ph/0403215v2

Phys.Lett. B591 (2004) 235-241

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 8 figures; v2: Some clarifying remarks added, together with additional references. Minor typos corrected. No change

Scientific paper

10.1016/j.physletb.2004.04.039

We consider a model for the decay Bbar^0 -> rho^0 gamma in which the short-distance amplitude determined by the Hamiltonian describing b -> d gamma is combined with a typical long-distance contribution Bbar^0 -> D^+ D^- -> rho^0 gamma. The latter possesses a significant dynamical phase which induces a CP-violating asymmetry A_CP, as well as an important modification of the Stokes vector of the photon. The components S_1 and S_3 of the Stokes vector S = (S_1, S_2, S_3) can be measured in the decay Bbar^0 -> rho^0 gamma^* -> pi^+ pi^- e^+ e^- where they produce a characteristic effect in the angular distribution d Gamma / d phi, phi being the angle between the pi^+ pi^- and e^+ e^- planes. A similar analysis is carried out for the decays Bbar^0 -> Kbar^* gamma and Bbar^0 -> Kbar^* gamma^* -> pi^+ K^- e^+ e^-

Affiliated with

Also associated with

No associations

Rating

Stokes Vector of Photon in the Decays B^0 -> rho^0 gamma and B^0 -> K^* gamma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stokes Vector of Photon in the Decays B^0 -> rho^0 gamma and B^0 -> K^* gamma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stokes Vector of Photon in the Decays B^0 -> rho^0 gamma and B^0 -> K^* gamma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-336330