Measurements of moments of the hadronic mass distribution in semileptonic B decays -: art. no. 111103

被引:24
|
作者
Aubert, B [1 ]
Barate, R
Boutigny, D
Couderc, F
Gaillard, JM
Hicheur, A
Karyotakis, Y
Lees, JP
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
Kukartsev, G
Lynch, G
Mir, LM
Oddone, PJ
Orimoto, TJ
Pripstein, M
Roe, NA
Ronan, MT
Shelkov, VG
Wenzel, WA
Barrett, M
Ford, KE
Harrison, TJ
Hart, AJ
机构
[1] Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France
[2] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
[3] Ist Nazl Fis Nucl, I-70126 Bari, Italy
[4] Inst High Energy Phys, Beijing 100039, Peoples R China
[5] Univ Bergen, Inst Phys, N-5007 Bergen, Norway
[6] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[7] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[8] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany
[9] Univ Bristol, Bristol BS8 1TL, Avon, England
[10] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada
[11] Brunel Univ, Uxbridge UB8 3PH, Middx, England
[12] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[13] Univ Calif Irvine, Irvine, CA 92697 USA
[14] Univ Calif Los Angeles, Los Angeles, CA 90024 USA
[15] Univ Calif Riverside, Riverside, CA 92521 USA
[16] Univ Calif San Diego, La Jolla, CA 92093 USA
[17] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
[18] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA
[19] CALTECH, Pasadena, CA 91125 USA
[20] Univ Cincinnati, Cincinnati, OH 45221 USA
[21] Univ Colorado, Boulder, CO 80309 USA
[22] Colorado State Univ, Ft Collins, CO 80523 USA
[23] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany
[24] Ecole Polytech, LLP, F-91128 Palaiseau, France
[25] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland
[26] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy
[27] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy
[28] Florida A&M Univ, Tallahassee, FL 32307 USA
[29] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[30] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[31] Ist Nazl Fis Nucl, I-16146 Genoa, Italy
[32] Harvard Univ, Cambridge, MA 02138 USA
[33] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany
[34] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England
[35] Univ Iowa, Iowa City, IA 52242 USA
[36] Iowa State Univ, Ames, IA 50011 USA
[37] Lab Accelerateur Lineaire, F-91898 Orsay, France
[38] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[39] Univ Liverpool, Liverpool L69 72E, Merseyside, England
[40] Univ London, Queen Mary, London E1 4NS, England
[41] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England
[42] Univ Louisville, Louisville, KY 40292 USA
[43] Univ Manchester, Manchester M13 9PL, Lancs, England
[44] Univ Maryland, College Pk, MD 20742 USA
[45] Univ Massachusetts, Amherst, MA 01003 USA
[46] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
[47] McGill Univ, Montreal, PQ H3A 2T8, Canada
[48] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[49] Ist Nazl Fis Nucl, I-20133 Milan, Italy
[50] Univ Mississippi, University, MS 38677 USA
来源
PHYSICAL REVIEW D | 2004年 / 69卷 / 11期
关键词
D O I
10.1103/PhysRevD.69.111103
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report a measurement of the first four moments of the hadronic mass distribution in (B) over bar -->X(c)l(-)(v) over bar decays. The measurements are based on 89 million Y(4S)-->B(B) over bar events where the hadronic decay of one of the B mesons is fully reconstructed and a charged lepton from the decay of the other B meson is identified. The moments are presented for minimum lepton momenta ranging from 0.9 to 1.6 GeV in the B rest frame. It is expected that such measurements will lead to improved determinations of \V-cb\ and \V-ub\.
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页数:7
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