Determination of the HQET parameter λ1 from an inclusive semileptonic B meson decay spectrum

K. K. Jeong; C. S. Kim

doi:10.1103/PhysRevD.59.114019

Determination of the HQET parameter λ₁ from an inclusive semileptonic B meson decay spectrum

K. K. Jeong, C. S. Kim

Department of Physics

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

7 Citations (Scopus)

Abstract

We estimate the heavy quark effective theory parameter λ₁ from the inclusive semileptonic B-meson decay spectrum. By using recent CLEO double lepton tagging data of B→Xeν, which show the lepton momentum as low as 0.6 GeV, we extracted λ₁∼-0.58 GeV². We also derived Λ̄∼0.46 GeV and |V_cb|=0.041±0.002.

Original language	English
Article number	114019
Pages (from-to)	1-6
Number of pages	6
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	59
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.59.114019
Publication status	Published - 1999 Jun 1

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.59.114019

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title = "Determination of the HQET parameter λ1 from an inclusive semileptonic B meson decay spectrum",

abstract = "We estimate the heavy quark effective theory parameter λ1 from the inclusive semileptonic B-meson decay spectrum. By using recent CLEO double lepton tagging data of B→Xeν, which show the lepton momentum as low as 0.6 GeV, we extracted λ1∼-0.58 GeV2. We also derived {\=Λ}∼0.46 GeV and |Vcb|=0.041±0.002.",

author = "Jeong, {K. K.} and Kim, {C. S.}",

year = "1999",

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AU - Kim, C. S.

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N2 - We estimate the heavy quark effective theory parameter λ1 from the inclusive semileptonic B-meson decay spectrum. By using recent CLEO double lepton tagging data of B→Xeν, which show the lepton momentum as low as 0.6 GeV, we extracted λ1∼-0.58 GeV2. We also derived Λ̄∼0.46 GeV and |Vcb|=0.041±0.002.

AB - We estimate the heavy quark effective theory parameter λ1 from the inclusive semileptonic B-meson decay spectrum. By using recent CLEO double lepton tagging data of B→Xeν, which show the lepton momentum as low as 0.6 GeV, we extracted λ1∼-0.58 GeV2. We also derived Λ̄∼0.46 GeV and |Vcb|=0.041±0.002.

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ER -

Determination of the HQET parameter λ₁ from an inclusive semileptonic B meson decay spectrum

Abstract

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