Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Υ→γA0

被引：164

作者：

Aubert, B. ^{[1
]}

Karyotakis, Y. ^{[1
]}

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

Poireau, V. ^{[1
]}

Prencipe, E. ^{[1
]}

Prudent, X. ^{[1
]}

Tisserand, V. ^{[1
]}

Garra Tico, J. ^{[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
,7
]}

Brown, D. N. ^{[6
,7
,44
]}

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

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

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

Osipenkov, I. L. ^{[6
,7
]}

Petigura, E. ^{[6
,7
]}

Tackmann, K. ^{[6
,7
]}

Tanabe, T. ^{[6
,7
]}

Hawkes, C. M. ^{[8
]}

Soni, N. ^{[8
]}

Watson, A. T. ^{[8
]}

Koch, H. ^{[9
]}

Schroeder, T. ^{[9
]}

Asgeirsson, D. J. ^{[10
]}

Fulsom, B. G. ^{[10
]}

Hearty, C. ^{[10
]}

Mattison, T. S. ^{[10
]}

McKenna, J. A. ^{[10
]}

Barrett, M. ^{[11
]}

Khan, A. ^{[11
]}

Randle-Conde, A. ^{[11
]}

Blinov, V. E. ^{[12
]}

Bukin, A. D. ^{[12
]}

Buzykaev, A. R. ^{[12
]}

Druzhinin, V. P. ^{[12
]}

Golubev, V. B. ^{[12
]}

Onuchin, A. P. ^{[12
]}

Serednyakov, S. I. ^{[12
]}

Skovpen, Yu. I. ^{[12
]}

Solodov, E. P. ^{[12
]}

Todyshev, K. Yu. ^{[12
]}

Bondioli, M. ^{[13
]}

Curry, S. ^{[13
]}

Eschrich, I. ^{[13
]}

机构：

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

[2] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, 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] 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 British Columbia, Vancouver, BC V6T 1Z1, Canada

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

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

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

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

[15] Univ Calif San Diego, La Jolla, CA 92093 USA

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

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

[18] CALTECH, Pasadena, CA 91125 USA

[19] Univ Cincinnati, Cincinnati, OH 45221 USA

[20] Univ Colorado, Boulder, CO 80309 USA

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

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

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

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

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

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

[27] Univ Ferrara, Dipartimento Fis, I-00044 Frascati, Italy

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

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

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

[31] Harvard Univ, Cambridge, MA 02138 USA

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

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

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

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

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

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

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

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

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

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

[42] Univ London, London E1 4NS, England

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

[44] Univ Louisville, Louisville, KY 40292 USA

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

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

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

[48] Univ Massachusetts, Amherst, MA 01003 USA

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

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

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

LEPTONIC DECAYS; HIGGS-BOSON; QUARKONIUM; MODEL;

D O I：

10.1103/PhysRevLett.103.081803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We search for evidence of a light scalar boson in the radiative decays of the Upsilon(2S) and Upsilon(3S) resonances: Upsilon(2S,3S)->gamma A(0), A(0)->mu(+)mu(-). Such a particle appears in extensions of the standard model, where a light CP-odd Higgs boson naturally couples strongly to b quarks. We find no evidence for such processes in the mass range 0.212 < m(A)(0)< 9.3 GeV in the samples of 99x10(6) Upsilon(2S) and 122x10(6) Upsilon(3S) decays collected by the BABAR detector at the SLAC PEP-II B factory and set stringent upper limits on the effective coupling of the b quark to the A(0). We also limit the dimuon branching fraction of the eta(b) meson: B(eta(b)->mu(+)mu(-))< 0.9% at 90% confidence level.

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