Properties of L=1 B(1) and B∗(2) Mesons

Baringer, Philip S.; Bean, Alice; Hensel, Carsten; Moulik, Tania; Wilson, Graham Wallace; Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.

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Issue Date

2007-10-23

Author

Baringer, Philip S.

Bean, Alice

Hensel, Carsten

Moulik, Tania

Wilson, Graham Wallace

Abazov, V. M.

Abbott, B.

Abolins, M.

Acharya, B. S.

Adams, M.

Publisher

American Physical Society

Type

Article

Article Version

Scholarly/refereed, publisher version

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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(+)(*)π−. The mass of B(1) is measured to be 5720.6±2.4±1.4 MeV/c(2) and the mass difference ΔM 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.

Description

This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.99.172001.

Citation

V. M. Abazov et al. (The D0 Collaboration). (2007). "Properties of L=1 B(1) and B∗(2) Mesons." Physical Review Letters, 99(17):172001. http://dx.doi.org/10.1103/PhysRevLett.99.172001.

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