Tevatron constraints on models of the Higgs boson with exotic spin and parity using decays to bottom-antibottom quark pairs
In this study, 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 JP = 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 JP = 0– and JP = 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 JP = 0– hypothesis and the JP = 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 JP = 0– and JP = 2+ hypotheses, respectively.
- Authors:
-
[1]
- Univ. of Helsinki, Helsinki (Finland); Helsinki Institute of Physics, Helsinki (Finland). et al.
- Publication Date:
- Report Number(s):
- FERMILAB-PUB-15-029-E
Journal ID: ISSN 0031-9007; arXiv eprint number arXiv:1502.00967; TRN: US1600785
- Grant/Contract Number:
- AC02-07CH11359; AC02-06CH11357
- Type:
- Published Article
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 114; Journal Issue: 15; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Research Org:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Orgs:
- CDF Collaboration
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
- OSTI Identifier:
- 1179914
- Alternate Identifier(s):
- OSTI ID: 1221247; OSTI ID: 1239573