Tevatron New Phenomena & Higgs Working Group
Combined CDF and DØ Constraints on Models for the Higgs Boson with Exotic Spin and Parity
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.
Figures: Higgs Spin and Parity Test
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