Abazov, V. M. ; Mondal, N. K. ; et., al (2007) Properties of L=1 B1 and B2∗ mesons Physical Review Letters, 99 (17). 172001_1-172001_7. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v99/i17/e172001
Related URL: http://dx.doi.org/10.1103/PhysRevLett.99.172001
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+∗π-. The mass of B1 is measured to be 5720.6v2.4±1.4 MeV/c2 and the mass difference ΔM between B2∗ and B1 is 26.2±3.1±0.9 MeV/c2, giving the mass of the B2∗ as 5746.8±2.4v1.7 MeV/c2. The production rate for B1 and B2∗ mesons is determined to be a fraction (13.9±1.9±3.2)% of the production rate of the B+ meson.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 92559 |
| Deposited On: | 01 Jun 2012 11:38 |
| Last Modified: | 01 Jun 2012 11:38 |
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