# 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

## Abstract

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}|.

- Authors:

- CERN, CH-1211 Geneva 23 (Switzerland)
- (United Kingdom)

- Publication Date:

- OSTI Identifier:
- 20782792

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.73.073008; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 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

### Citation Formats

```
Buchmueller, O.L., Flaecher, H. U., and Royal Holloway, University of London, Egham, Surrey TW20 0EX.
```*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*. United States: N. p., 2006.
Web. doi:10.1103/PHYSREVD.73.073008.

```
Buchmueller, O.L., Flaecher, H. U., & Royal Holloway, University of London, Egham, Surrey TW20 0EX.
```*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*. United States. doi:10.1103/PHYSREVD.73.073008.

```
Buchmueller, O.L., Flaecher, H. U., and Royal Holloway, University of London, Egham, Surrey TW20 0EX. Sat .
"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". United States.
doi:10.1103/PHYSREVD.73.073008.
```

```
@article{osti_20782792,
```

title = {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},

author = {Buchmueller, O.L. and Flaecher, H. U. and Royal Holloway, University of London, Egham, Surrey TW20 0EX},

abstractNote = {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}|.},

doi = {10.1103/PHYSREVD.73.073008},

journal = {Physical Review. D, Particles Fields},

number = 7,

volume = 73,

place = {United States},

year = {Sat Apr 01 00:00:00 EST 2006},

month = {Sat Apr 01 00:00:00 EST 2006}

}