Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR
We search for a light Higgs boson A0 in the radiative decay Υ(3S)→γA0, A0-->τ+τ-, τ+→e+νeν̅ τ, or τ+-->μ+νμν̅ τ. The data sample contains 122×106 Υ(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in the studied τ+τ- invariant mass region of 4.03<mτ+τ-...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/54803 https://orcid.org/0000-0002-8667-5660 |
| _version_ | 1826207184441049088 |
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| author | Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Spitznagel, Michael A Cowan, Ray F Fisher, Peter H |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Spitznagel, Michael A Cowan, Ray F Fisher, Peter H |
| author_sort | Zhao, M. |
| collection | MIT |
| description | We search for a light Higgs boson A0 in the radiative decay Υ(3S)→γA0, A0-->τ+τ-, τ+→e+νeν̅ τ, or τ+-->μ+νμν̅ τ. The data sample contains 122×106 Υ(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in the studied τ+τ- invariant mass region of 4.03<mτ+τ-<10.10 GeV/c2. We exclude at the 90% confidence level (C.L.) a low-mass Higgs boson decaying to τ+τ- with a product branching fraction B(Υ(3S)-->γA0)×B(A0-->τ+τ-)>(1.5–16)×10-5 across the mτ+τ- range. We also set a 90% C.L. upper limit on the τ+τ- decay of the ηb at B(ηb-->τ+τ-)<8%. |
| first_indexed | 2024-09-23T13:45:41Z |
| format | Article |
| id | mit-1721.1/54803 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:45:41Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/548032023-02-26T05:44:33Z Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR Search for a Low-Mass Higgs Boson in Υ(3S)→γA0, A0→τ+τ- at BABAR Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Spitznagel, Michael A Cowan, Ray F Fisher, Peter H Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Fisher, Peter H. Zhao, M. Yamamoto, R. K. Spitznagel, M. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Cowan, Ray Franklin Fisher, Peter H. We search for a light Higgs boson A0 in the radiative decay Υ(3S)→γA0, A0-->τ+τ-, τ+→e+νeν̅ τ, or τ+-->μ+νμν̅ τ. The data sample contains 122×106 Υ(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in the studied τ+τ- invariant mass region of 4.03<mτ+τ-<10.10 GeV/c2. We exclude at the 90% confidence level (C.L.) a low-mass Higgs boson decaying to τ+τ- with a product branching fraction B(Υ(3S)-->γA0)×B(A0-->τ+τ-)>(1.5–16)×10-5 across the mτ+τ- range. We also set a 90% C.L. upper limit on the τ+τ- decay of the ηb at B(ηb-->τ+τ-)<8%. Science and Technology Facilities Council, United Kingdom MEC (Spain) Ministry of Education and Science of the Russian Federation Norges forskningsråd FOM of the Netherlands Istituto Nazionale di Fisica Nucleare of Italy Deutsche Forschungsgemeinschaft Bundesministerium für Bildung und Forschung, Germany Institut National de Physique Nucleaire et Physique des Particules/CNRS Commissariat à l'Energie Atomique (France) Natural Sciences and Engineering Research Council of Canada National Science Foundation United States Department of Energy 2010-05-18T19:02:38Z 2010-05-18T19:02:38Z 2009-10 2009-06 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/54803 The BABAR Collaboration et al. “Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A, A--> tau + tau - at BABAR.” Physical Review Letters 103.18 (2009): 181801. © 2009 American Physical Society. https://orcid.org/0000-0002-8667-5660 en_US http://dx.doi.org/10.1103/PhysRevLett.103.181801 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Spitznagel, Michael A Cowan, Ray F Fisher, Peter H Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR |
| title | Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR |
| title_full | Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR |
| title_fullStr | Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR |
| title_full_unstemmed | Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR |
| title_short | Search for a Low-Mass Higgs Boson in Upsilon (3S)--> gamma A0, A0--> tau + tau - at BABAR |
| title_sort | search for a low mass higgs boson in upsilon 3s gamma a0 a0 tau tau at babar |
| url | http://hdl.handle.net/1721.1/54803 https://orcid.org/0000-0002-8667-5660 |
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