Search for B → K(*) v(v)over-bar and invisible quarkonium decays

被引：84

作者：

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

Poireau, V. ^{[1
]}

Tisserand, V. ^{[1
]}

Grauges, E. ^{[2
]}

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

Eigen, G. ^{[5
]}

Stugu, B. ^{[5
]}

Brown, D. N. ^{[6
,7
,43
]}

Kerth, L. T. ^{[6
,7
]}

Kolomensky, Yu. G. ^{[6
,7
]}

Lee, M. ^{[6
,7
]}

Lynch, G. ^{[6
,7
]}

Koch, H. ^{[8
]}

Schroeder, T. ^{[8
]}

Hearty, C. ^{[9
]}

Mattison, T. S. ^{[9
]}

McKenna, J. A. ^{[9
]}

So, R. Y. ^{[9
]}

Khan, A. ^{[10
]}

Blinov, V. E. ^{[11
]}

Buzykaev, A. R. ^{[11
]}

Druzhinin, V. P. ^{[11
]}

Golubev, V. B. ^{[11
]}

Kravchenko, E. A. ^{[11
]}

Onuchin, A. P. ^{[11
]}

Serednyakov, S. I. ^{[11
]}

Skovpen, Yu. I. ^{[11
]}

Solodov, E. P. ^{[11
]}

Todyshev, K. Yu. ^{[11
]}

Yushkov, A. N. ^{[11
]}

Kirkby, D. ^{[12
]}

Lankford, A. J. ^{[12
]}

Mandelkern, M. ^{[12
]}

Dey, B. ^{[13
]}

Gary, J. W. ^{[13
]}

Long, O. ^{[13
]}

Vitug, G. M. ^{[13
]}

Campagnari, C. ^{[14
]}

Sevilla, M. Franco ^{[14
]}

Hong, T. M. ^{[14
]}

Kovalskyi, D. ^{[14
]}

Richman, J. D. ^{[14
]}

West, C. A. ^{[14
]}

Eisner, A. M. ^{[15
]}

Lockman, W. S. ^{[15
]}

Martinez, A. J. ^{[15
]}

Schumm, B. A. ^{[15
]}

Seiden, A. ^{[15
]}

Chao, D. S. ^{[16
]}

Cheng, C. H. ^{[16
]}

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

[7] Univ Calif Berkeley, Berkeley, CA 94720 USA

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

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

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

[11] Russian Acad Sci, Budker Inst Nucl Phys, SB, Novosibirsk 630090, Russia

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

[13] Univ Calif Riverside, Riverside, CA 92521 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 Kern & 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-44122 Ferrara, Italy

[25] Univ Ferrara, Dipartimento Fis & Sci Terra, I-44122 Ferrara, Italy

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

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

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

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

[30] Harvard Univ, Cambridge, MA 02138 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] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

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

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

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

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 11期

基金：

美国国家科学基金会; 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;

关键词：

D O I：

10.1103/PhysRevD.87.112005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We search for the flavor-changing neutral-current decays B -> K-(*()) v (v) over bar, and the invisible decays J/psi -> v (v) over bar and psi(2S) -> v (v) over bar via B -> K-(*())J/psi and B -> K-(*()) psi(2S), respectively, using a data sample of 471 x 10(6) B (B) over bar pairs collected by the BABAR experiment. We fully reconstruct the hadronBic decay of one of the B mesons in the Y(4S) -> B (B) over bar decay, and search for the B -> K-(*()) v (v) over bar decay in the rest of the event. We observe no significant excess of signal decays over background and report branching fraction upper limits of B(B+ -> K+ v (v) over bar) < 3.7 x 10(-5), B(B-0 -> K-0 v<(v)over bar>) < 8.1 x 10(-5), B(B+ -> K*(+) v<(v)over bar>) < 11.6 x 10(-5), B(B-0 -> K*(0) v<(v)over bar>), < 9.3 x 10(-5), and combined upper limits of B(B -> K v<(v)over bar>) < 3.2 x 10(-5) and B(B -> K* v<(v)over bar>) < 7.9 x 10(-5), all at the 90% confidence level. For the invisible quarkonium decays, we report branching fraction upper limits of B(J/psi -> v<(v)over bar>) < 3.9 x 10(-3) and B(psi(2S) -> v<(v)over bar> < 15.5 x 10(-3) at the 90% confidence level. Using the improved kinematic resolution achieved from hadronic reconstruction, we also provide partial branching fraction limits for the B -> K-(*()) v<(v)over bar> decays over the full kinematic spectrum.

引用

页数：13

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