Hadronic mass moments in inclusive semileptonic B meson decays
dc.contributor.author | Ammar, Raymond G. | |
dc.contributor.author | Bean, Alice | |
dc.contributor.author | Besson, David Zeke | |
dc.contributor.author | Zhao, X. | |
dc.date.accessioned | 2007-04-09T23:33:28Z | |
dc.date.available | 2007-04-09T23:33:28Z | |
dc.date.issued | 2001-12 | |
dc.identifier.citation | Cronin-Hennessy, D; Lyon, et al. Hadronic mass moments in inclusive semileptonic B meson decays. PHYSICAL REVIEW LETTERS. December 2001. 87(25) | |
dc.identifier.uri | http://hdl.handle.net/1808/1311 | |
dc.description.abstract | We have measured the first and second moments of the hadronic mass-squared distribution in B --> X(c)l nu, for P-lepton > 1.5 GeV/c. We find (M-x(2) - (M) over bar (2)(D)) = 0.251 +/- 0.066 GeV2, ((M-X(2) - (M-X(2))(2)) = 0.576 +/- 0.170 GeV4, where (M) over bar (D) is the spin-averaged D meson mass. From that first moment and the first moment of the photon energy spectrum in b --> s gamma, we find the heavy quark effective theory parameter lambda (1) (in the modified minimal subtraction renormalization scheme, to order 1/M-B(3) and beta (o)alpha (2)(s)) to be -0.24 +/- 0.11 GeV2. Using these first moments and the B semileptonic width, and assuming parton-hadron duality, we obtain \V-cb\ = 0.0404 +/- 0.0013. | |
dc.language.iso | en_US | |
dc.publisher | AMERICAN PHYSICAL SOC | |
dc.relation.isversionof | http://publish.aps.org/ | |
dc.title | Hadronic mass moments in inclusive semileptonic B meson decays | |
dc.type | Article | |
dc.rights.accessrights | openAccess |
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