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Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Y → yA^0

Aubert, B. and Karyotakis, Y. and Lees, J. P. and Poireau, V. and Prencipe, E. and Prudent, X. and Tisserand, V. and Garra-Tico, J. and Grauges, E. and Martinelli, M. and Palano, A. and Pappagallo, M. and Eigen, G. and Stugu, B. and Sun, L. and Battaglia, M. and Brown, D. N. and Kerth, L. T. and Kolomensky, Yu. G. and Lynch, G. and Osipenkov, I. L. and Petigura, E. and Tackmann, K. and Tanabe, T. and Hawkes, C. M. and Soni, N. and Watson, A. T. and Koch, H. and Schroeder, T. and Asgeirsson, D. J. and Fulsom, B. G. and Hearty, C. and Mattison, T. S. and McKenna, J. A. and Barrett, M. and Khan, A. and Randle-Conde, A. and Blinov, V. E. and Bukin, A. D. and Buzykaev, A. R. and Druzhinin, V. P. and Golubev, V. B. and Onuchin, A. P. and Serednyakov, S. I. and Skovpen, Yu. I. and Solodov, E. P. and Todyshev, K. Yu. and Bondioli, M. and Curry, S. and Eschrich, I. and Kirkby, D. and Lankford, A. J. and Lund, P. and Mandelkern, M. and Martin, E. C. and Stoker, D. 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C. and Bianchi, F. and Gamba, D. and Pelliccioni, M. and Bomben, M. and Bosisio, L. and Cartaro, C. and Della-Ricca, G. and Lanceri, L. and Vitale, L. and Azzolini, V. and Lopez-March, N. and Martinez-Vidal, F. and Milanes, D. A. and Oyanguren, A. and Albert, J. and Banerjee, Sw. and Bhuyan, B. and Choi, H. H. F. and Hamano, K. and King, G. J. and Kowalewski, R. and Lewczuk, M. J. and Nugent, I. M. and Roney, J. M. and Sobie, R. J. and Gershon, T. J. and Harrison, P. F. and Ilic, J. and Latham, T. E. and Mohanty, G. B. and Puccio, E. M. T. and Band, H. R. and Chen, X. and Dasu, S. and Flood, K. T. and Pan, Y. and Prepost, R. and Vuosalo, C. O. and Wu, S. L. (2009) Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Y → yA^0. Physical Review Letters, 103 (8). Art. No. 081803. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:20091012-103908032

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Abstract

We search for evidence of a light scalar boson in the radiative decays of the Υ(2S) and Υ(3S) resonances: Υ(2S,3S) → γA^0, A^0 →µ^+µ^-. 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 99×10^6 Υ(2S) and 122×10^6 Υ(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 η_b meson: B(η_b→µ^+µ^-)<0.9% at 90% confidence level.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.103.081803DOIArticle
http://link.aps.org/doi/10.1103/PhysRevLett.103.081803 PublisherArticle
ORCID:
AuthorORCID
Petigura, E.0000-0003-0967-2893
Hitlin, D. G.0000-0003-4028-6982
Porter, F. C.0000-0003-1948-8889
Alternate Title:Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Upsilon ---> gamma A0
Additional Information:©2009 The American Physical Society. Received 27 May 2009; published 18 August 2009. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Commissariat à l'Énergie Atomique (CEA)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Bundesministerium für Bildung und Forschung (BMBF)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
Fundamenteel Onderzoek der Materie (FOM)UNSPECIFIED
Ministerio de Educación y Ciencia (MEC)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Marie Curie FellowshipUNSPECIFIED
European Investment FundUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)UNSPECIFIED
Issue or Number:8
Classification Code:14.80.Cp; 13.20.Gd; 14.40.Gx; 14.80.Mz
Record Number:CaltechAUTHORS:20091012-103908032
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20091012-103908032
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16238
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:15 Oct 2009 21:17
Last Modified:03 Oct 2019 01:09

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