Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Mesons with b quarks: Spectroscopy and electromagnetic properties

Mesons with b quarks: Spectroscopy and electromagnetic properties We treat the recently discovered ϒ particle at 9.41 GeV as evidence for a fifth quark flavor, the b quark. An SU(5) mass formula is then used to predict the masses of other b b ¯ states. The masses of the b -quark analogs of the D and F mesons ( B N , B s , B c , etc.) are predicted, as are their production cross sections in e + e - annihilation. At best, the B N * B ¯ N * combination will be seen at 12 GeV with a cross section of ∼0.3 nb. As with the charm domain, the B N * - B N mass difference is about one pion mass. The predicted electromagnetic mass splitting is only about 2 MeV for B N + - B N 0 , so that the strong-interaction decay widths of the B * ' s will be of the same order as the electromagnetic decay widths. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Mesons with b quarks: Spectroscopy and electromagnetic properties

Boal, David H
Physical Review D , Volume 18 (9) – Nov 1, 1978
Download PDF
7 pages

Loading next page...
 
/lp/american-physical-society-aps/mesons-with-b-quarks-spectroscopy-and-electromagnetic-properties-FT0RELub1E

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
American Physical Society (APS)
Copyright
Copyright © 1978 The American Physical Society
ISSN
1089-4918
DOI
10.1103/PhysRevD.18.3446
Publisher site
See Article on Publisher Site

Abstract

We treat the recently discovered ϒ particle at 9.41 GeV as evidence for a fifth quark flavor, the b quark. An SU(5) mass formula is then used to predict the masses of other b b ¯ states. The masses of the b -quark analogs of the D and F mesons ( B N , B s , B c , etc.) are predicted, as are their production cross sections in e + e - annihilation. At best, the B N * B ¯ N * combination will be seen at 12 GeV with a cross section of ∼0.3 nb. As with the charm domain, the B N * - B N mass difference is about one pion mass. The predicted electromagnetic mass splitting is only about 2 MeV for B N + - B N 0 , so that the strong-interaction decay widths of the B * ' s will be of the same order as the electromagnetic decay widths.

Journal

Physical Review D – American Physical Society (APS)

Published: Nov 1, 1978

There are no references for this article.