Search for a low-mass standard model Higgs boson in the ττ decay channel in pp̄ collisions at √s=1.96TeV

Authors

T. Aaltonen, Helsingin Yliopisto
B. Álvarez González, Universidad de Cantabria
S. Amerio, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
D. Amidei, University of Michigan, Ann Arbor
A. Anastassov, Northwestern University
A. Annovi, INFN, Laboratori Nazionali Di Frascati
J. Antos, Univerzita Komenského v Bratislave
G. Apollinari, Fermi National Accelerator Laboratory
J. A. Appel, Fermi National Accelerator Laboratory
A. Apresyan, Purdue University
T. Arisawa, Waseda University
A. Artikov, Joint Institute for Nuclear Research, Dubna
J. Asaadi, Texas A&M University
W. Ashmanskas, Fermi National Accelerator Laboratory
B. Auerbach, Yale University
A. Aurisano, Texas A&M University
F. Azfar, University of Oxford
W. Badgett, Fermi National Accelerator Laboratory
A. Barbaro-Galtieri, Lawrence Berkeley National Laboratory
V. E. Barnes, Purdue University
B. A. Barnett, Johns Hopkins University
P. Barria, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Bartos, Univerzita Komenského v Bratislave
M. Bauce, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
G. Bauer, Massachusetts Institute of Technology
F. Bedeschi, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
D. Beecher, University College London
S. Behari, Johns Hopkins University

Document Type

Article

Publication Date

5-2-2012

Abstract

We report on a search for the standard model Higgs boson decaying into pairs of τ leptons in pp̄ collisions produced by the Tevatron at √s=1.96TeV. The analyzed data sample was recorded by the CDFII detector and corresponds to an integrated luminosity of 6.0fb -1. The search is performed in the final state with one τ decaying leptonically and the second one identified through its semihadronic decay. Since no significant excess is observed, a 95% credibility level upper limit on the production cross section times branching ratio to the ττ final state is set for hypothetical Higgs boson masses between 100 and 150GeV/c2. For a Higgs boson of 120GeV/c2 the observed (expected) limit is 14.6 (15.3) the predicted value. © 2012 American Physical Society.

Publication Source (Journal or Book title)

Physical Review Letters

Recommended Citation

Aaltonen, T., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Appel, J., Apresyan, A., Arisawa, T., Artikov, A., Asaadi, J., Ashmanskas, W., Auerbach, B., Aurisano, A., Azfar, F., Badgett, W., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Barria, P., Bartos, P., Bauce, M., Bauer, G., Bedeschi, F., Beecher, D., & Behari, S. (2012). Search for a low-mass standard model Higgs boson in the ττ decay channel in pp̄ collisions at √s=1.96TeV. Physical Review Letters, 108 (18) https://doi.org/10.1103/PhysRevLett.108.181804