Properties of L=1 B1 and B2* mesons

D0 Collaboration

doi:10.1103/PhysRevLett.99.172001

Properties of L=1 B1 and B2* mesons

D0 Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

Excited B mesons B_1 and B_2* are observed directly for the first time 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.

Original language	English
Article number	172001
Journal	Phys. Rev. Lett.
Volume	99
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.99.172001
Publication status	Published - 23 Oct 2007

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@article{3b5aee09ad474b53bb3805af7c391254,

title = "Properties of L=1 B1 and B2* mesons",

abstract = "Excited B mesons B\_1 and B\_2* are observed directly for the first time 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\textasciicircum{}2 and the mass difference DeltaM between B\_2* and B\_1 is (26.2 +- 3.1 +- 0.9) MeV/c\textasciicircum{}2, giving the mass of the B\_2* as (5746.8 +- 2.4 +- 1.7) MeV/c\textasciicircum{}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.",

author = "Christian Schwanenberger and Matthew Ford and K Harder and Mommsen, \{R. K.\} and Mark Owen and Krisztian Peters and Philip Rich and Christian Schwanenberger and Stefan Soldner-Rembold and Paul Telford and Terence Wyatt and \{D0 Collaboration\}",

year = "2007",

month = oct,

day = "23",

doi = "10.1103/PhysRevLett.99.172001",

language = "English",

volume = "99",

journal = "Phys. Rev. Lett.",

issn = "1079-7114",

publisher = "American Physical Society",

number = "17",

}

TY - JOUR

T1 - Properties of L=1 B1 and B2* mesons

AU - Schwanenberger, Christian

AU - Ford, Matthew

AU - Harder, K

AU - Mommsen, R. K.

AU - Owen, Mark

AU - Peters, Krisztian

AU - Rich, Philip

AU - Schwanenberger, Christian

AU - Soldner-Rembold, Stefan

AU - Telford, Paul

AU - Wyatt, Terence

AU - D0 Collaboration

PY - 2007/10/23

Y1 - 2007/10/23

N2 - Excited B mesons B_1 and B_2* are observed directly for the first time 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.

AB - Excited B mesons B_1 and B_2* are observed directly for the first time 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.

U2 - 10.1103/PhysRevLett.99.172001

DO - 10.1103/PhysRevLett.99.172001

M3 - Article

SN - 1079-7114

VL - 99

JO - Phys. Rev. Lett.

JF - Phys. Rev. Lett.

IS - 17

M1 - 172001

ER -

Properties of L=1 B1 and B2* mesons

Abstract

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