Fit to moments of inclusive B{yields}X{sub c}l{nu} and B{yields}X{sub s}{gamma} decay distributions using heavy quark expansions in the kinetic scheme

Journal Article · Sat Apr 01 00:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.73.073008· OSTI ID:20782792

Buchmueller, O L; Flaecher, H U ^[1]

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1. CERN, CH-1211 Geneva 23 (Switzerland)

We present a fit to measured moments of inclusive distributions in B{yields}X{sub c}l{nu} and B{yields}X{sub s}{gamma} decays to extract values for the Cabibbo-Kobayashi-Maskawa (CKM) matrix element |V{sub cb}|, the b- and c-quark masses, and higher-order parameters that appear in the heavy quark expansion. The fit is carried out using theoretical calculations in the kinetic scheme and includes moment measurements of the BABAR, Belle, CDF, CLEO, and DELPHI collaborations for which correlation matrices have been published. We find |V{sub cb}|=(41.96{+-}0.23{sub exp}{+-}0.35{sub HQE}{+-}0.59{sub {gamma}{sub S}{sub L}})x10{sup -3} and m{sub b}=4.590{+-}0.025{sub exp}{+-}0.030{sub HQE} GeV where the errors are experimental and theoretical respectively. We also derive values for the heavy quark distribution function parameters m{sub b} and {mu}{sub {pi}}{sup 2} in different theoretical schemes that can be used as input for the determination of |V{sub ub}|.

• OSTI ID: 20782792
• Journal Information: Physical Review. D, Particles Fields, Vol. 73, Issue 7; Other Information: DOI: 10.1103/PhysRevD.73.073008; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
B QUARKS
C QUARKS
CESR STORAGE RING
CORRELATIONS
DISTRIBUTION
DISTRIBUTION FUNCTIONS
FERMILAB COLLIDER DETECTOR
GEV RANGE
INCLUSIVE INTERACTIONS
KOBAYASHI-MASKAWA MATRIX
LEPTONIC DECAY
MULTIPARTICLE SPECTROMETERS
ORDER PARAMETERS
PARTICLE IDENTIFICATION
REST MASS
T QUARKS