Measurement of |Vcb| with B0 → D*+ℓ-v at CLEO

Daniel Cronin-Hennessy

doi:10.1142/S0217751X01007674

Measurement of |V_cb| with B⁰ → D*⁺ℓ^-v at CLEO

Daniel Cronin-Hennessy

Physics and Astronomy (Twin Cities)

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

Abstract

We determine the CKM matrix element, |V_cb|, by measuring the differential decay rate of B → D*⁺ℓv as a function of w = v_B · ν_D*. We extrapolate the decay rate to the kinematic point, w = 1, where the form factor, F(w), is accurately predicted by theory. We find f(1)|v_cb| = 0.0424 ± 0.0018(stat.) ± 0.0019(syst.). Integration of the differential decay rate, dT/dw, yields the B → D*⁺ℓv branching fraction, B(B → D*⁺ℓv = (5.66 ± 0.29 ± 0.33)%. The data are derived from 3.3 million BB events collected by the CLEO detector at CESR.

Original language	English (US)
Pages (from-to)	639-641
Number of pages	3
Journal	International Journal of Modern Physics A
Volume	16
Issue number	SUPPL. 1B
DOIs	https://doi.org/10.1142/S0217751X01007674
State	Published - 2001

Publisher link

10.1142/S0217751X01007674

Find It

Find It at U of M Libraries

Cite this

@article{62e9471d63b04799a0d61c99b8c678e8,

title = "Measurement of |Vcb| with B0 → D*+ℓ-v at CLEO",

abstract = "We determine the CKM matrix element, |Vcb|, by measuring the differential decay rate of B → D*+ℓv as a function of w = vB · νD*. We extrapolate the decay rate to the kinematic point, w = 1, where the form factor, F(w), is accurately predicted by theory. We find f(1)|vcb| = 0.0424 ± 0.0018(stat.) ± 0.0019(syst.). Integration of the differential decay rate, dT/dw, yields the B → D*+ℓv branching fraction, B(B → D*+ℓv = (5.66 ± 0.29 ± 0.33)\%. The data are derived from 3.3 million BB events collected by the CLEO detector at CESR.",

author = "Daniel Cronin-Hennessy",

year = "2001",

doi = "10.1142/S0217751X01007674",

language = "English (US)",

volume = "16",

pages = "639--641",

journal = "International Journal of Modern Physics A",

issn = "0217-751X",

publisher = "World Scientific",

number = "SUPPL. 1B",

}

TY - JOUR

T1 - Measurement of |Vcb| with B0 → D*+ℓ-v at CLEO

AU - Cronin-Hennessy, Daniel

PY - 2001

Y1 - 2001

N2 - We determine the CKM matrix element, |Vcb|, by measuring the differential decay rate of B → D*+ℓv as a function of w = vB · νD*. We extrapolate the decay rate to the kinematic point, w = 1, where the form factor, F(w), is accurately predicted by theory. We find f(1)|vcb| = 0.0424 ± 0.0018(stat.) ± 0.0019(syst.). Integration of the differential decay rate, dT/dw, yields the B → D*+ℓv branching fraction, B(B → D*+ℓv = (5.66 ± 0.29 ± 0.33)%. The data are derived from 3.3 million BB events collected by the CLEO detector at CESR.

AB - We determine the CKM matrix element, |Vcb|, by measuring the differential decay rate of B → D*+ℓv as a function of w = vB · νD*. We extrapolate the decay rate to the kinematic point, w = 1, where the form factor, F(w), is accurately predicted by theory. We find f(1)|vcb| = 0.0424 ± 0.0018(stat.) ± 0.0019(syst.). Integration of the differential decay rate, dT/dw, yields the B → D*+ℓv branching fraction, B(B → D*+ℓv = (5.66 ± 0.29 ± 0.33)%. The data are derived from 3.3 million BB events collected by the CLEO detector at CESR.

UR - https://www.scopus.com/pages/publications/0035558954

UR - https://www.scopus.com/pages/publications/0035558954#tab=citedBy

U2 - 10.1142/S0217751X01007674

DO - 10.1142/S0217751X01007674

M3 - Article

AN - SCOPUS:0035558954

SN - 0217-751X

VL - 16

SP - 639

EP - 641

JO - International Journal of Modern Physics A

JF - International Journal of Modern Physics A

IS - SUPPL. 1B

ER -

Measurement of |V_cb| with B⁰ → D*⁺ℓ^-v at CLEO

Abstract

Publisher link

Find It

Other files and links

Fingerprint

Cite this