Study of di-pion bottomonium transitions and search for the h_b(1P) state

Details Study of di-pion bottomonium transitions and search for the h_b(1P) state Study of di-pion bottomonium transitions and search for the h_b(1P) state

2011-05-21

arxiv.org/abs/1105.4234v2

Phys.Rev.D84:011104,2011

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 4 postscript figures; typos corrected, fixed references

Scientific paper

10.1103/PhysRevD.84.011104

We study inclusive di-pion decays using a sample of 108 x 10^6 Upsilon(3S) events recorded with the BABAR detector. We search for the decay mode Upsilon(3S) --> pi+ pi- h_b(1P) and find no evidence for the bottomonium spin-singlet state h_b(1P) in the invariant mass distribution recoiling against the pi+ pi- system. Assuming the h_b(1P) mass to be 9.900 GeV/c^2, we measure the upper limit on the branching fraction B[Upsilon(3S) --> pi+ pi- h_b(1P)] < 1.2 x 10^{-4}, at 90% confidence level. We also investigate the chi_{bJ}(2P) --> pi+ pi- chi_{bJ}(1P), Upsilon(3S) --> pi+ pi- Upsilon(2S), and Upsilon(2S) --> pi+ pi- Upsilon(1S) di-pion transitions and present an improved measurement of the branching fraction of the Upsilon(3S) --> pi+ pi- Upsilon(2S) decay and of the Upsilon(3S)-Upsilon(2S) mass difference.

Affiliated with

Also associated with

No associations

Rating

Study of di-pion bottomonium transitions and search for the h_b(1P) state 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 Study of di-pion bottomonium transitions and search for the h_b(1P) state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Study of di-pion bottomonium transitions and search for the h_b(1P) state will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-713308