B meson decays to charmless meson pairs containing η or η' mesons

被引：18

作者：

Aubert, B. ^{[1
]}

Karyotakis, Y. ^{[1
]}

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

Poireau, V. ^{[1
]}

Prencipe, E. ^{[1
]}

Prudent, X. ^{[1
]}

Tisserand, V. ^{[1
]}

Tico, J. Garra ^{[2
]}

Grauges, E. ^{[2
]}

Martinelli, M. ^{[3
,4
]}

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

Pappagallo, M. ^{[3
,4
]}

Eigen, G. ^{[5
]}

Stugu, B. ^{[5
]}

Sun, L. ^{[5
]}

Battaglia, M. ^{[6
,86
]}

Brown, D. N. ^{[6
,39
,86
]}

Kerth, L. T. ^{[6
,86
]}

Kolomensky, Yu. G. ^{[6
,86
]}

Lynch, G. ^{[6
,86
]}

Osipenkov, I. L. ^{[6
,86
]}

Tackmann, K. ^{[6
,86
]}

Tanabe, T. ^{[6
,86
]}

Hawkes, C. M. ^{[87
]}

Soni, N. ^{[87
]}

Watson, A. T. ^{[87
]}

Koch, H. ^{[7
]}

Schroeder, T. ^{[7
]}

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

Fulsom, B. G. ^{[8
]}

Hearty, C. ^{[8
]}

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

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

Barrett, M. ^{[9
]}

Khan, A. ^{[9
]}

Randle-Conde, A. ^{[9
]}

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

Bukin, A. D. ^{[10
]}

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

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

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

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

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

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

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

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

Bondioli, M. ^{[11
]}

Curry, S. ^{[11
]}

Eschrich, I. ^{[11
]}

Kirkby, D. ^{[11
]}

机构：

[1] Univ Savoie, CNRS, IN2P3, 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, Dipartimento Fis, I-70126 Bari, Italy

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

[6] 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 San Diego, San Diego, CA 92093 USA

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

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

[16] CALTECH, Pasadena, CA 91125 USA

[17] Univ Cincinnati, Cincinnati, OH 45221 USA

[18] Univ Colorado, Boulder, CO 80309 USA

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

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

[21] Tech Univ Dresden, Inst Kernund Teilchenphys, D-01062 Dresden, Germany

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

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

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

[25] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

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

[27] Ist Nazl Fis Nucl, Sezi Genova, I-16146 Genoa, Italy

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

[29] Harvard Univ, Cambridge, MA 02138 USA

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

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

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

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

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

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

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

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

[38] Univ London, Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England

[39] Univ Louisville, Louisville, KY 40292 USA

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

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

[42] Univ Massachusetts, Amherst, MA 01003 USA

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

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

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

[46] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[47] Univ Mississippi, University, MS 38677 USA

[48] Univ Montreal, Montreal, PQ H3C 3J7, Canada

[49] Mt Holyoke Coll, S Hadley, MA 01075 USA

[50] Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 11期

基金：

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

关键词：

QCD FACTORIZATION; PERTURBATIVE QCD; STANDARD MODEL; PENGUIN DECAYS; PARAMETERS; PHYSICS; LIGHT;

D O I：

10.1103/PhysRevD.80.112002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present updated measurements of the branching fractions for B-0 meson decays to eta K-0, eta eta, eta phi, eta omega, eta K-'(0), eta(')eta('), eta(')phi, and eta(')omega, and branching fractions and CP-violating charge asymmetries for B+ decays to eta pi(+), eta K+, eta(')pi(+), and eta K-'(+). The data represent the full data set of 467x10(6) BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at the SLAC National Accelerator Laboratory. Besides large signals for the four charged B decay modes and for B-0 ->eta K-'(0), we find evidence for three B-0 decay modes at greater than 3.0 sigma significance. We find B(B-0 ->eta K-0)=(1.15(-0.38)(+0.43)+/- 0.09)x10(-6), B(B-0 ->eta omega)=(0.94(-0.30)(+0.35)+/- 0.09)x10(-6), and B(B-0 ->eta(')omega)=(1.01(-0.38)(+0.46)+/- 0.09)x10(-6), where the first (second) uncertainty is statistical (systematic). For the B+->eta K+ decay mode, we measure the charge asymmetry A(ch)(B+->eta K+)=-0.36 +/- 0.11 +/- 0.03.

引用

页数：11

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