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Properties of L=1 B(1) and B(2)* mesons.

Abstract:
This Letter presents the first strong evidence for the resolution of the excited B mesons B(1) and B(2)* as two separate states in fully reconstructed decays to B(+)(*)pi(-). The mass of B(1) is measured to be 5720.6+/-2.4+/-1.4 MeV/c(2) and the mass difference DeltaM between B(2)* and B(1) is 26.2+/-3.1+/-0.9 MeV/c;{2}, giving the mass of the B(2)* as 5746.8+/-2.4+/-1.7 MeV/c(2). The production rate for B(1) and B(2)* mesons is determined to be a fraction (13.9+/-1.9+/-3.2)% of the production rate of the B+ meson.

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Authors


Abazov, VM More by this author
Abolins, M More by this author
Acharya, BS More by this author
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Journal:
Phys Rev Lett
Volume:
99
Issue:
17
Pages:
172001
Publication date:
2007-10-26
ISSN:
0031-9007
URN:
uuid:936ee1fd-af41-4ac5-b361-e0cc31b11147
Source identifiers:
180041
Local pid:
pubs:180041
Language:
English

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