Branching fractions and CP asymmetries in B0→K+K-KS0 and B+→K+KS0KS0 -: art. no. 181805

被引:15
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] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[7] Univ Calif Berkeley, Berkeley, CA 94720 USA
[8] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[9] Ruhr Univ Bochum, Inst Expt Phys 1, 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] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany
[25] Ecole Polytech, LLR, F-91128 Palaiseau, France
[26] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland
[27] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy
[28] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy
[29] Florida A&M Univ, Tallahassee, FL 32307 USA
[30] Ist Nazl Fis Nucl, Nazl Frascati Lab, 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] Univ Heidelberg, 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] Lab Accelerateur Lineaire, F-91898 Orsay, France
[39] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[40] Univ Liverpool, Liverpool L69 72E, Merseyside, England
[41] Univ London Queen Mary Coll, London E1 4NS, England
[42] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England
[43] Univ Louisville, Louisville, KY 40292 USA
[44] Univ Manchester, Manchester M13 9PL, Lancs, England
[45] Univ Maryland, College Pk, MD 20742 USA
[46] Univ Massachusetts, Amherst, MA 01003 USA
[47] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
[48] McGill Univ, Montreal, PQ H3A 2T8, Canada
[49] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[50] Ist Nazl Fis Nucl, I-20133 Milan, Italy
基金
加拿大自然科学与工程研究理事会; 美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.93.181805
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We measure the branching fractions and CP asymmetries in the decays B-0 --> (K+K-KS0) and B+ --> (K+KSKS0)-K-0 using a sample of approximately 122 x 10(6) B(B) over bar pairs collected by the BABAR detector. From a time-dependent analysis of the (K+K-KS0) sample that excludes phiK(S)(0), the values of the CP-violation parameters are S = -0.56+/-0.25+/-0.04 and C = -0.10+/-0.19+/-0.10, where the first uncertainty is statistical and the second is systematic. We confirm that the final state is nearly purely CP even and extract the standard model parameter sin2beta = 0.57+/-0.26+/-0.04(-0)(+0.17) where the last error is due to uncertainty on the CP content. We present the first measurement of the CP-violating charge asymmetry A(CP)(B+ --> (K+KSKS0)-K-0) = -0.04+/-0.11+/-0.02. The branching fractions are B(B-0 --> (K+K-K0)) = (23.8+/-2.0+/-1.6) x 10(-6) and B(B+ --> (K+KSKS0)-K-0) = (10.7+/-1.2+/-1.0) x 10(-6).
引用
收藏
页码:181805 / 1
页数:7
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