Measurement of the time-dependent CP asymmetry of partially reconstructed B0 → D+D- decays

被引：7

作者：

Lees, J. P. ^{[1
]}

Poireau, V. ^{[1
]}

Tisserand, V. ^{[1
]}

Garra Tico, J. ^{[2
]}

Grauges, E. ^{[2
]}

Palano, A. ^{[3
,4
]}

Eigen, G. ^{[5
]}

Stugu, B. ^{[5
]}

Brown, D. N. ^{[6
,43
]}

Kerth, L. T. ^{[6
]}

Kolomensky, Yu. G. ^{[6
]}

Lynch, G. ^{[6
]}

Koch, H. ^{[7
]}

Schroeder, T. ^{[7
]}

Asgeirsson, D. J. ^{[8
]}

Hearty, C. ^{[8
]}

Mattison, T. S. ^{[8
]}

McKenna, J. A. ^{[8
]}

So, R. Y. ^{[8
]}

Khan, A. ^{[9
]}

Blinov, V. E. ^{[10
]}

Buzykaev, A. R. ^{[10
]}

Druzhinin, V. P. ^{[10
]}

Golubev, V. B. ^{[10
]}

Kravchenko, E. A. ^{[10
]}

Onuchin, A. P. ^{[10
]}

Serednyakov, S. I. ^{[10
]}

Skovpen, Yu. I. ^{[10
]}

Solodov, E. P. ^{[10
]}

Todyshev, K. Yu. ^{[10
]}

Yushkov, A. N. ^{[10
]}

Bondioli, M. ^{[11
]}

Kirkby, D. ^{[11
]}

Lankford, A. J. ^{[11
]}

Mandelkern, M. ^{[11
]}

Atmacan, H. ^{[12
]}

Gary, J. W. ^{[12
]}

Liu, F. ^{[12
]}

Long, O. ^{[12
]}

Vitug, G. M. ^{[12
]}

Campagnari, C. ^{[13
]}

Hong, T. M. ^{[13
]}

Kovalskyi, D. ^{[13
]}

Richman, J. D. ^{[13
]}

West, C. A. ^{[13
]}

Eisner, A. M. ^{[14
]}

Kroseberg, J. ^{[14
]}

Lockman, W. S. ^{[14
]}

Martinez, A. J. ^{[14
]}

Schumm, B. A. ^{[14
]}

机构：

[1] Univ Savoie, CNRS IN2P3, Lab Annecy Le Vieux Phys Particules, LAPP, F-74941 Annecy Le Vieux, France

[2] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain

[3] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[4] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy

[5] Univ Bergen, Inst Phys, N-5007 Bergen, Norway

[6] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[7] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany

[8] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada

[9] Brunel Univ, Uxbridge UB8 3PH, Middx, England

[10] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[11] Univ Calif Irvine, Irvine, CA 92697 USA

[12] Univ Calif Riverside, Riverside, CA 92521 USA

[13] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[14] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA

[15] CALTECH, Pasadena, CA 91125 USA

[16] Univ Cincinnati, Cincinnati, OH 45221 USA

[17] Univ Colorado, Boulder, CO 80309 USA

[18] Colorado State Univ, Ft Collins, CO 80523 USA

[19] Tech Univ Dortmund, Fak Phys, D-44221 Dortmund, Germany

[20] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany

[21] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[22] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland

[23] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy

[24] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy

[25] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[26] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy

[27] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[28] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India

[29] Harvard Univ, Cambridge, MA 02138 USA

[30] Harvey Mudd Coll, Claremont, CA 91711 USA

[31] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[32] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[33] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

[34] Univ Iowa, Iowa City, IA 52242 USA

[35] Iowa State Univ, Ames, IA 50011 USA

[36] Johns Hopkins Univ, Baltimore, MD 21218 USA

[37] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91898 Orsay, France

[38] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France

[39] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[40] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England

[41] 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] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany

[45] Univ Manchester, Manchester M13 9PL, Lancs, England

[46] Univ Maryland, College Pk, MD 20742 USA

[47] Univ Massachusetts, Amherst, MA 01003 USA

[48] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

[49] McGill Univ, Montreal, PQ H3A 2T8, Canada

[50] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

来源：

PHYSICAL REVIEW D | 2012年 / 86卷 / 11期

基金：

英国科学技术设施理事会; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

VIOLATION;

D O I：

10.1103/PhysRevD.86.112006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new measurement of the time-dependent CP asymmetry of B-0 -> D*D+*(-) decays using (471 +/- 5) million B (B) over bar pairs collected with the BABAR detector at the PEP-II B Factory at the SLAC National Accelerator Laboratory. Using the technique of partial reconstruction, we measure the time-dependent CP asymmetry parameters S = -0.34 +/- 0.12 +/- 0.05 and C = 0.15 +/- 0.09 +/- 0.04. Using the value for the CP-odd fraction R-perpendicular to = 0.158 +/- 0.028 +/- 0.006, previously measured by BABAR with fully reconstructed B-0 -> D*D+*(-) events, we extract the CP-even components S+ = 0.49 +/- 0.18 +/- 0.07 +/- 0.04 and C+ = +0.15 +/- 0.09 +/- 0.04. In each case, the first uncertainty is statistical and the second is systematic; the third uncertainty on S+ is the contribution from the uncertainty on R-perpendicular to. The measured value of the CP-even component S+ is consistent with the value of sin2 beta measured in b -> (c (c) over bar )s transitions, and with the Standard Model expectation of small penguin contributions. DOI: 10.1103/PhysRevD.86.112006

引用

页数：15

共 50 条

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[2] Measurement of branching fraction and time-dependent CP asymmetry parameters in B0→D*+D*-KS0 decays
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[8] Measurement of the time-dependent CP asymmetry in B0→DCP(*)h0 decays
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[9] Time-dependent CP-violating asymmetry in B0→ρ0γ decays
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Dash, M.
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PHYSICAL REVIEW LETTERS, 2008, 100 (02)
[10] Measurement of the branching fraction and time-dependent CP asymmetry in the decay B0→D*+D*-KS0
Aubert, B.
Bona, M.
Boutigny, D.
Couderc, F.
Karyotakis, Y.
Lees, J. P.
Poireau, V.
Tisserand, V.
Zghiche, A.
Grauges, E.
Palano, A.
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.
Gill, M. S.
Groysman, Y.
Jacobsen, R. G.
Kadyk, J. A.
Kerth, L. T.
Kolomensky, Yu. G.
Kukartsev, G.
Lynch, G.
Mir, L. M.
Orimoto, T. J.
Pripstein, M.
Roe, N. A.
Ronan, M. T.
Wenzel, W. A.
del Amo Sanchez, P.
Barrett, M.
Ford, K. E.
Harrison, T. J.
Hart, A. J.
Hawkes, C. M.
Watson, A. T.
Held, T.
Koch, H.
Lewandowski, B.
Pelizaeus, M.
PHYSICAL REVIEW D, 2006, 74 (09):

← 1 2 3 4 5 →

Measurement of the time-dependent CP asymmetry of partially reconstructed B0 → D*+D*- decays

Measurement of the time-dependent CP asymmetry of partially reconstructed B0 → D+D- decays