An explanation of Belle states Z_b(10610) and Z_b(10650)

Details An explanation of Belle states Z_b(10610) and Z_b(10650) An explanation of Belle states Z_b(10610) and Z_b(10650)

2011-05-27

arxiv.org/abs/1105.5492v5

Europhys. Lett.96:11002, 2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 5 figures. Major revision correcting a mistake in the earlier version, and including full calculations of cusp effect

Scientific paper

10.1209/0295-5075/96/11002

Belle report data on Upsilon (5S) -> Upsilon(1S,2S,3S)-piplus-piminus and chi_b(1P,2P)-piplus-piminus; they observe peaks in Upsilon-pi and chi_b-pi consistent with J^P=1^+. They interpret the peaks as molecular states Z_b(10608) and Z_b(10653). Their masses are just above Bbar-B^* and B^*bar-B^* thresholds at 10604.6 and 10650.2 MeV. An explanation in terms of cusps at these thresholds is presented here. The product of the rising phase space for Bbar-B^* and B^*bar B^* with the cusps creates peaks a few MeV higher in Bbar-B^* and B^*bar-B^*, and these peaks can de-excite to piplus-piminus-Upsilon(1S,2S,3S) and piplus-piminus-chi_b(1P,2P).

Affiliated with

Also associated with

No associations

Rating

An explanation of Belle states Z_b(10610) and Z_b(10650) 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 An explanation of Belle states Z_b(10610) and Z_b(10650), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An explanation of Belle states Z_b(10610) and Z_b(10650) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-664876