Properties of L=1 B1 and B2* mesons

Nenhuma Miniatura disponível

Data

2007-10-23

Autores

Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Ahn, S. H.
Ahsan, M.
Alexeev, G. D.

Título da Revista

ISSN da Revista

Título de Volume

Editor

Resumo

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 ÎM 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.

Descrição

Palavras-chave

Como citar

Physical Review Letters, v. 99, n. 17, 2007.