Measurement of the gamma gamma* --> eta_c transition form factor

Details Measurement of the gamma gamma* --> eta_c transition form factor Measurement of the gamma gamma* --> eta_c transition form factor

2010-02-16

arxiv.org/abs/1002.3000v2

Phys.Rev.D81:052010,2010

Physics

High Energy Physics

High Energy Physics - Experiment

20 pages, 26 postscript figures, updated to version accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.81.052010

We study the reaction e+e- --> e+e- eta_c, eta_c --> K_S K+- pi-+ and obtain eta_c mass and width values 2982.2+-0.4+-1.6 MeV/c^2 and 31.7+-1.2+-0.8 MeV, respectively. We find Gamma(eta_c --> gamma gamma)B(eta_c --> K anti-K pi)=0.374+-0.009+-0.031 keV, and measure the gamma gamma* --> eta_c transition form factor in the momentum transfer range from 2 to 50 GeV^2. The analysis is based on 469 fb-1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e- center-of-mass energies near 10.6 GeV.

Affiliated with

Also associated with

No associations

Rating

Measurement of the gamma gamma* --> eta_c transition form factor 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 Measurement of the gamma gamma* --> eta_c transition form factor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the gamma gamma* --> eta_c transition form factor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-597877