e^+ e^- Annihilation into J/psi + J/psi

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

5 pages, 2 figures, 1 table, revised to correct errors in original version, Erratum to Phys. Rev. Lett. article included as a

Scientific paper

10.1103/PhysRevLett.90.162001

Recent measurements by the Belle Collaboration of the exclusive production of two charmonia in e^+ e^- annihilation differ substantially from theoretical predictions. We suggest that a significant part of the discrepancy can be explained by the process e^+ e^- -> J/psi + J/psi. Because the J/psi + J/psi production process can proceed through fragmentation of two virtual photons into two cc-bar pairs, its cross section may be larger than that for J/psi +eta_c by about a factor 1.8, in spite of a suppression factor alpha^2/alpha_s^2 that is associated with the QED and QCD coupling constants.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

e^+ e^- Annihilation into J/psi + J/psi 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 e^+ e^- Annihilation into J/psi + J/psi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and e^+ e^- Annihilation into J/psi + J/psi will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-344584

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.