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Search for a low-mass Higgs Boson in upsilon(3S) -> gamma A(0), A(0) -> tau(+) tau(-) at BABAR

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BABAR Collaboration (Including:

Aubert, B., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M. et al.
). (2009) Search for a low-mass Higgs Boson in upsilon(3S) -> gamma A(0), A(0) -> tau(+) tau(-) at BABAR. Physical Review Letters, Vol.103 (No.18). article no.181801 . doi:10.1103/PhysRevLett.103.181801 ISSN 0031-9007.

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.103.181801

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Abstract

We search for a light Higgs boson A(0) in the radiative decay Upsilon(3S) -> gamma A(0), A(0) -> tau(+) tau(-), tau(+) -> e(+) nu(e)(nu) over bar (tau) or tau(+) -> mu(+) nu(mu)(nu) over bar (tau) . The data sample contains 122 X 10(6) Upsilon(3S) events recorded with the BABAR detector. We find no evidence for a narrow structure in the studied tau(+) tau(-) invariant mass region of 4.03 < m(tau+ tau-) < 10: 10 GeV= c(2). We exclude at the 90% confidence level (C.L.) a low-mass Higgs boson decaying to tau(+) tau(-) with a product branching fraction B(Upsilon(3S) -> A(0)) B(A(0) -> tau(+) tau(-)) > (1.5 - 16) X 10(-5) across the m(tau+ tau-) range. We also set a 90% C. L. upper limit on the tau(+) tau(-) decay of the eta(b) at B(eta(b) -> tau(+) tau(-)) < 8%.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 30 October 2009
Dates:
DateEvent
30 October 2009Published
Volume: Vol.103
Number: No.18
Number of Pages: 7
Page Range: article no.181801
DOI: 10.1103/PhysRevLett.103.181801
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: DOE, NSF (USA), NSERC (Canada), CEA, CNRS-IN2P3 (France), BMBF, DFG (Germany, INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), STFC (United Kingdom), Marie Curie EIF (European Union), A. P. Sloan Foundation

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