Tevatron Constraints on Models of the Higgs Boson with Exotic Spin and Parity Using Decays to Bottom-Antibottom Quark Pairs
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PhysRevLett.114.151802.pdf
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Author(s)
Aaltonen, T.
Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Agnew, J. P.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Date Issued
April 2015
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaltonen, T., et al. "Tevatron Constraints on Models of the Higgs Boson with Exotic Spin and Parity Using Decays to Bottom-Antibottom Quark Pairs." Phys. Rev. Lett. 114, 151802 (April 2015). © 2015 American Physical Society
Version
Final published version
Abstract
Combined constraints from the CDF and D0 Collaborations on models of the Higgs boson with exotic spin J and parity P are presented and compared with results obtained assuming the standard model value J[superscript P] = 0[superscript +]. Both collaborations analyzed approximately 10 fb[superscript −1] of proton-antiproton collisions with a center-of-mass energy of 1.96 TeV collected at the Fermilab Tevatron. Two models predicting exotic Higgs bosons with J[superscript P] =0[superscript -] and J[ superscript P] = 2[superscript +] are tested. The kinematic properties of exotic Higgs boson production in association with a vector boson differ from those predicted for the standard model Higgs boson. Upper limits at the 95% credibility level on the production rates of the exotic Higgs bosons, expressed as fractions of the standard model Higgs boson production rate, are set at 0.36 for both the J[superscript P] = 0[superscript -] hypothesis and the J[superscript P] = 2[superscript +] hypothesis. If the production rate times the branching ratio to a bottom-antibottom pair is the same as that predicted for the standard model Higgs boson, then the exotic bosons are excluded with significances of 5.0 standard deviations and 4.9 standard deviations for the J[superscript P] = 0[superscript -] and J[superscript P] = 2[superscript +] hypotheses, respectively.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.114.151802
