Measurements of CP-violating asymmetries and branching fractions in B decays to ωK and ωπ

被引：14
|
作者：
Aubert, B. [1 ]
Barate, R.
Bona, M.
Boutigny, D.
Couderc, F.
Karyotakis, Y.
Lees, J. P.
Poireau, V.
Tisserand, V.
Zghiche, A.
Grauges, E.
Palano, A.
Pappagallo, M.
Chen, J. C.
Qi, N. D.
Rong, G.
Wang, P.
Zhu, Y. S.
Eigen, G.
Ofte, I.
Stugu, B.
Abrams, G. S.
Battaglia, M.
Brown, D. N.
Button-Shafer, J.
Cahn, R. N.
Charles, E.
Day, C. T.
Gill, M. S.
Groysman, Y.
Jacobsen, R. G.
Kadyk, J. A.
Kerth, L. T.
Kolomensky, Yu. G.
Kukartsev, G.
Lynch, G.
Mir, L. M.
Oddone, P. J.
Orimoto, T. J.
Pripstein, M.
Roe, N. A.
Ronan, M. T.
Wenzel, W. A.
Barrett, M.
Ford, K. E.
Harrison, T. J.
Hart, A. J.
Hawkes, C. M.
Morgan, S. E.
Watson, A. T.
机构：
[1] Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France
[2] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain
[3] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy
[4] Ist Nazl Fis Nucl, I-70126 Bari, Italy
[5] Inst High Energy Phys, Beijing 100039, Peoples R China
[6] Univ Bergen, Inst Phys, N-5007 Bergen, Norway
[7] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[8] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[9] Ruhr Univ Bochum, Inst Expt Phys, D-44780 Bochum, Germany
[10] Univ Bristol, Bristol BS8 1TL, Avon, England
[11] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada
[12] Brunel Univ, Uxbridge UB8 3PH, Middx, England
[13] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[14] Univ Calif Irvine, Irvine, CA 92697 USA
[15] Univ Calif Los Angeles, Los Angeles, CA 90024 USA
[16] Univ Calif Riverside, Riverside, CA 92521 USA
[17] Univ Calif San Diego, La Jolla, CA 92093 USA
[18] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
[19] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA
[20] CALTECH, Pasadena, CA 91125 USA
[21] Univ Cincinnati, Cincinnati, OH 45221 USA
[22] Univ Colorado, Boulder, CO 80309 USA
[23] Colorado State Univ, Ft Collins, CO 80523 USA
[24] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany
[25] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany
[26] Ecole Polytech, LLR, F-91128 Palaiseau, France
[27] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland
[28] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy
[29] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy
[30] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[31] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[32] Ist Nazl Fis Nucl, I-16146 Genoa, Italy
[33] Harvard Univ, Cambridge, MA 02138 USA
[34] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany
[35] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England
[36] Univ Iowa, Iowa City, IA 52242 USA
[37] Iowa State Univ Sci & Technol, Ames, IA 50011 USA
[38] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[39] Univ Karlsruhe, Inst Expt Kernphys, D-76021 Karlsruhe, Germany
[40] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91898 Orsay, France
[41] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France
[42] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[43] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England
[44] Queen Mary Univ London, London E1 4NS, England
[45] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England
[46] Univ Louisville, Louisville, KY 40292 USA
[47] Univ Manchester, Manchester M13 9PL, Lancs, England
[48] Univ Maryland, College Pk, MD 20742 USA
[49] Univ Massachusetts, Amherst, MA 01003 USA
[50] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
来源：
PHYSICAL REVIEW D | 2006年 / 74卷 / 01期
基金：
英国科学技术设施理事会;
关键词：
D O I：
10.1103/PhysRevD.74.011106
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present measurements of CP-violating asymmetries and branching fractions for the decays B+->omega pi(+), B+->omega K+, and B-0 ->omega K-0. The data sample corresponds to 232x10(6) B (B) over bar pairs produced by e(+)e(-) annihilation at the Upsilon(4S) resonance. For the decay B-0 ->omega K-S(0), we measure the time-dependent CP-violation parameters S=0.51(-0.39)(+0.35)+/- 0.02, and C=-0.55(-0.26)(+0.28)+/- 0.03. We also measure the branching fractions, in units of 10(-6), B(B+->omega pi(+))=6.1 +/- 0.7 +/- 0.4, B(B+->omega K+)=6.1 +/- 0.6 +/- 0.4, and B(B-0 ->omega K-0)=6.2 +/- 1.0 +/- 0.4, and charge asymmetries A(ch)(B+->omega pi(+))=-0.01 +/- 0.10 +/- 0.01 and A(ch)(B+->omega K+)=0.05 +/- 0.09 +/- 0.01.
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页数：7
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