Properties of L=1 B1 and B2* mesons

Authors

V. M. Abazov, Joint Institute for Nuclear Research, DubnaFollow
B. Abbott, Southern Methodist UniversityFollow
M. Abolins, University of RochesterFollow
B. S. Acharya, Tata Institute of Fundamental Research, Mumbai
M. Adams, Iowa State UniversityFollow
T. Adams, University of Notre DameFollow
E. Aguilo, University of Alberta
S. H. Ahn, Panjab UniversityFollow
Abaz Kryemadhi, Messiah UniversityFollow
G. D. Alexeev, Joint Institute for Nuclear Research, DubnaFollow

Document Type

Article

Publication Date

10-23-2007

Abstract

This Letter presents the first strong evidence for the resolution of the excited B mesons B1 and B2* as two separate states in fully reconstructed decays to B+(*)Ï€-. The mass of B1 is measured to be 5720.6Â.±2.4Â.±1.4Â.€‰Â.€ ‰MeV/c2 and the mass difference Î"M between B2* and B1 is 26.2Â.±3.1Â.±0. 9Â.€‰Â.€‰MeV/c2, giving the mass of the B2* as 5746.8Â.±2.4Â.±1. 7Â.€‰Â.€‰MeV/c2. The production rate for B1 and B2* mesons is determined to be a fraction (13.9Â.±1. 9Â.±3.2)% of the production rate of the B+ meson. © 2007 The American Physical Society.

Recommended Citation

Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Aguilo, E.; Ahn, S. H.; Kryemadhi, Abaz; and Alexeev, G. D., "Properties of L=1 B1 and B2* mesons" (2007). Educator Scholarship & Departmental Newsletters. 139.
https://mosaic.messiah.edu/mps_ed/139