Measurement of the Cabibbo-Kobayashi-Maskawa angle γ in B∓→D(*)K∓ decays with a Dalitz analysis of D→KS0π-π+ -: art. no. 121802

被引:215
作者
Aubert, B [1 ]
Barate, R
Boutigny, D
Couderc, F
Karyotakis, Y
Lees, JP
Poireau, V
Tisserand, V
Zghiche, A
Grauges, E
Palano, A
Pappagallo, M
Pompili, A
Chen, JC
Qi, ND
Rong, G
Wang, P
Zhu, YS
Eigen, G
Ofte, I
Stugu, B
Abrams, GS
Battaglia, M
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
Wenzel, WA
Barrett, M
Ford, KE
Harrison, TJ
机构
[1] Phys Particules Lab, F-74941 Annecy Le Vieux, France
[2] Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain
[3] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
[4] Univ Bari, 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 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] 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, Dipartimento Fis, I-44100 Ferrara, Italy
[29] Univ Ferrara, 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] Univ Genoa, 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] Accelerateur Lineaire Lab, F-91898 Orsay, France
[39] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[40] Univ Liverpool, Liverpool L69 72E, Merseyside, England
[41] Queen Mary Univ London, 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] Univ Milan, Ist Nazl Fis Nucl, I-20133 Milan, Italy
关键词
D O I
10.1103/PhysRevLett.95.121802
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on a measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase gamma through a Dalitz analysis of neutral D decays to K(S)(0)pi(-)pi(+) in the processes B-/+-> (DK-/+)-K-(*), D-*-> D pi(0), D gamma. Using a sample of 227x10(6) BB pairs collected by the BABAR detector, we measure the amplitude ratios r(B)=0.12 +/- 0.08 +/- 0.03 +/- 0.04 and r(B)(*)=0.17 +/- 0.10 +/- 0.03 +/- 0.03, the relative strong phases delta(B)=(104 +/- 45(-21-24)(+17+16))degrees and delta(B)(*)=(-64 +/- 41(-12)(+14)+/- 15)degrees between the amplitudes A(B--> (DK-)-K-(*)0) and A(B--> (DK-)-K-(*)0), and gamma=(70 +/- 31(-10-11)(+12+14))degrees. The first error is statistical, the second is the experimental systematic uncertainty, and the third reflects the Dalitz model uncertainty. The results for the strong and weak phases have a twofold ambiguity.
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页数:7
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