Fit to moments of inclusive B→Xcl(ν)over-bar and B→Xsγ decay distributions using heavy quark expansions in the kinetic scheme -: art. no. 073008

被引：131

作者：

Buchmüller, OL

Flächer, HU

机构：

[1] CERN, CH-1211 Geneva 23, Switzerland

[2] Univ London, Egham TW20 0EX, Surrey, England

来源：

PHYSICAL REVIEW D | 2006年 / 73卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.73.073008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a fit to measured moments of inclusive distributions in B -> X(c)l (nu) over bar and B -> X(s)gamma decays to extract values for the Cabibbo-Kobayashi-Maskawa (CKM) matrix element \V-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 parallel to V(cb)parallel to=(41.96 +/- 0.23(exp)+/- 0.35(HQE)+/- 0.59(Gamma SL))x10(-3) and m(b)=4.590 +/- 0.025(exp)+/- 0.030(HQE) GeV where the errors are experimental and theoretical respectively. We also derive values for the heavy quark distribution function parameters m(b) and mu(pi)(2) in different theoretical schemes that can be used as input for the determination of \V-ub\.

引用

页数：11

共 46 条

[1] Determination of heavy quark non-perturbative parametersfrom spectral moments in semileptonic B decays [J].

Abdallah, J. ;

Abreu, P. ;

Adam, W. ;

Adzic, P. ;

Albrecht, T. ;

Alderweireld, T. ;

Alemany-Fernandez, R. ;

Allmendinger, T. ;

Allport, P. ;

Amaldi, U. ;

Amapane, N. ;

Amato, S. ;

Anashkin, E. ;

Andreazza, A. ;

Andringa, S. ;

Anjos, N. ;

Antilogus, P. ;

Apel, W-D. ;

Arnoud, Y. ;

Ask, S. ;

Asman, B. ;

Augustin, E. ;

Augustinus, A. ;

Baillon, P. ;

Ballestrero, A. ;

Bambade, P. ;

Barbier, R. ;

Bardin, D. ;

Barker, J. ;

Baroncelli, A. ;

Battaglia, M. ;

Baubillier, M. ;

Becks, K-H. ;

Begalli, M. ;

Behrmann, A. ;

Ben-Haim, E. ;

Benekos, N. ;

Benvenuti, A. ;

Berat, C. ;

Berggren, M. ;

Berntzon, L. ;

Bertrand, D. ;

Besancon, M. ;

Besson, N. ;

Bloch, D. ;

Blom, M. ;

Bluj, M. ;

Bonesini, M. ;

Boonekamp, M. ;

Booth, L. .

EUROPEAN PHYSICAL JOURNAL C, 2006, 45 (01) :35-59

[2]

ABE K, HEPEX0508056

[3]

ABE K, HEPEX0508005

[4]

ABE K, HEPEX0509013

[5] Measurement of the moments of the hadronic invariant mass distribution in semileptonic B decays -: art. no. 051103 [J].

Acosta, D ;

Adelman, J ;

Affolder, T ;

Akimoto, T ;

Albrow, MG ;

Ambrose, D ;

Amerio, S ;

Amidei, D ;

Anastassov, A ;

Anikeev, K ;

Annovi, A ;

Antos, J ;

Aoki, M ;

Apollinari, G ;

Arisawa, T ;

Arguin, JF ;

Artikov, A ;

Ashmanskas, W ;

Attal, A ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bachacou, H ;

Badgett, W ;

Barbaro-Galtieri, A ;

Barker, GJ ;

Barnes, VE ;

Barnett, BA ;

Baroiant, S ;

Barone, M ;

Bauer, G ;

Bedeschi, F ;

Behari, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Ben-Haim, E ;

Benjamin, D ;

Beretvas, A ;

Bhatti, A ;

Binkley, M ;

Bisello, D ;

Bishai, M ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Bocci, A ;

Bodek, A ;

Bolla, G .

PHYSICAL REVIEW D, 2005, 71 (05) :1-9

[6]

ALEXANDER J, HEPEX0412073 HFAG

[7] Perturbative corrections to semileptonic b decay distributions [J].

Aquila, V ;

Gambino, P ;

Ridolfi, G ;

Uraltsev, N .

NUCLEAR PHYSICS B, 2005, 719 (1-2) :77-102

[8]

Aubert B, 2005, PHYS REV D, V72, DOI [10.1103/PhysRevD.72.052004, 10.1103/PhysRevD.72.032004]

[9] J/ψ production via initial state radiation in e+e-→μ+μ-γ at an e+e- center-of-mass energy near 10.6 GeV -: art. no. 011103 [J].

Aubert, B ;

Barate, R ;

Boutigny, D ;

Gaillard, JM ;

Hicheur, A ;

Karyotakis, Y ;

Lees, JP ;

Robbe, P ;

Tisserand, V ;

Zghiche, A ;

Palano, A ;

Pompili, A ;

Chen, JC ;

Qi, ND ;

Rong, G ;

Wang, P ;

Zhu, YS ;

Eigen, G ;

Ofte, I ;

Stugu, B ;

Abrams, GS ;

Borgland, AW ;

Breon, AB ;

Brown, DN ;

Button-Shafer, J ;

Cahn, RN ;

Charles, E ;

Day, CT ;

Gill, MS ;

Gritsan, AV ;

Groysman, Y ;

Jacobsen, RG ;

Kadel, RW ;

Kadyk, J ;

Kerth, LT ;

Kolomensky, YG ;

Kral, JF ;

Kukartsev, G ;

LeClerc, C ;

Levi, ME ;

Lynch, G ;

Mir, LM ;

Oddone, PJ ;

Orimoto, TJ ;

Pripstein, M ;

Roe, NA ;

Romosan, A ;

Ronan, MT ;

Shelkov, VG ;

Telnov, AV .

PHYSICAL REVIEW D, 2004, 69 (01)

[10] Determination of the branching fraction for B→Xclν decays and of |Vcb| from hadronic-mass and lepton-energy moments -: art. no. 011803 [J].