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Tevatron New Phenomena & Higgs Working Group


Combined CDF and DØ Constraints on Models for the Higgs Boson with Exotic Spin and Parity

April 2015

Combined constraints from the CDF and DØ 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 P=0+. Both collaborations analyzed approximately 10 fb-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 P=0- and J P=2+ 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 P=0- hypothesis and the J P=2+ 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 P=0- and J P=2+ hypotheses, respectively.

Published in T. Aaltonen et al. (CDF and DØ Collaborations), Phys Rev. Lett. 114, 151802 (2015)

PRL Editor's Suggestion synopsis

News article in Science Magazine, April 7, 2015

Preprint: arXiv:1502.00967 [hep-ex]

Available as FERMILAB-PUB-15-029-E

We test the theoretical model proposed by John Ellis, Dae Sung Hwang, Verónica Sanz, and Tevong You in JHEP 1211 (2012) 134

Links:    CDF Higgs Results     DØ Higgs Results

Figures: Higgs Spin and Parity Test

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Last modified: Mon Apr 20, 2015, TEVNPHWG