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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Constraints on models for the Higgs Boson with exotic spin and parity in $VH$Vbb$ final states
AU - Abazov, V. M.
AU - Abbott, B.
AU - Acharya, B. S.
AU - Adams, M.
AU - Adams, T.
AU - Agnew, J. P.
AU - Alexeev, G. D.
AU - Alkhazov, G.
AU - Alton, A.
AU - Askew, A.
AU - Atkins, S.
AU - Augsten, K.
AU - Avila, C.
AU - Badaud, F.
AU - Bagby, L.
AU - Baldin, B.
AU - Bandurin, D. V.
AU - Banerjee, S.
AU - Barberis, E.
AU - Baringer, P.
AU - Bartlett, J. F.
AU - Bassler, U.
AU - Bazterra, V.
AU - Bean, A.
AU - Begalli, M.
AU - Bellantoni, L.
AU - Beri, S. B.
AU - Bernardi, G.
AU - Bernhard, R.
AU - Bertram, I.
AU - Besanifmmode çelse çon, M.
AU - Beuselinck, R.
AU - Bhat, P. C.
AU - Bhatia, S.
AU - Bhatnagar, V.
AU - Blazey, G.
AU - Blessing, S.
AU - Bloom, K.
AU - Boehnlein, A.
AU - Boline, D.
AU - Boos, E. E.
AU - Borissov, G.
AU - Borysova, M.
AU - Brandt, A.
AU - Brandt, O.
AU - Fox, H.
AU - Price, D.
AU - Ratoff, P. N.
AU - Ross, A.
AU - Williams, M. R. J.
AU - D0 Collaboration
N1 - © 2014 American Physical Society
PY - 2014/10/16
Y1 - 2014/10/16
N2 - We present constraints on models containing non-standard-model values for the spin J and parity P of the Higgs boson H in up to 9.7 fb−1 of pp¯ collisions at s√=1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. These are the first studies of Higgs boson JP with fermions in the final state. In the ZH→ℓℓbb¯, WH→ℓνbb¯, and ZH→ννbb¯ final states, we compare the standard model (SM) Higgs boson prediction, JP=0+, with two alternative hypotheses, JP=0− and JP=2+. We use a likelihood ratio to quantify the degree to which our data are incompatible with non-SM JP predictions for a range of possible production rates. Assuming that the production rate in the signal models considered is equal to the SM prediction, we reject the JP=0− and JP=2+ hypotheses at the 97.6% CL and at the 99.0% CL, respectively. The expected exclusion sensitivity for a JP=0− (JP=2+) state is at the 99.86% (99.94%) CL. Under the hypothesis that our data are the result of a combination of the SM-like Higgs boson and either a JP=0− or a JP=2+ signal, we exclude a JP=0− fraction above 0.80 and a JP=2+ fraction above 0.67 at the 95% CL. The expected exclusion covers JP=0− (JP=2+) fractions above 0.54 (0.47).
AB - We present constraints on models containing non-standard-model values for the spin J and parity P of the Higgs boson H in up to 9.7 fb−1 of pp¯ collisions at s√=1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. These are the first studies of Higgs boson JP with fermions in the final state. In the ZH→ℓℓbb¯, WH→ℓνbb¯, and ZH→ννbb¯ final states, we compare the standard model (SM) Higgs boson prediction, JP=0+, with two alternative hypotheses, JP=0− and JP=2+. We use a likelihood ratio to quantify the degree to which our data are incompatible with non-SM JP predictions for a range of possible production rates. Assuming that the production rate in the signal models considered is equal to the SM prediction, we reject the JP=0− and JP=2+ hypotheses at the 97.6% CL and at the 99.0% CL, respectively. The expected exclusion sensitivity for a JP=0− (JP=2+) state is at the 99.86% (99.94%) CL. Under the hypothesis that our data are the result of a combination of the SM-like Higgs boson and either a JP=0− or a JP=2+ signal, we exclude a JP=0− fraction above 0.80 and a JP=2+ fraction above 0.67 at the 95% CL. The expected exclusion covers JP=0− (JP=2+) fractions above 0.54 (0.47).
U2 - 10.1103/PhysRevLett.113.161802
DO - 10.1103/PhysRevLett.113.161802
M3 - Journal article
VL - 113
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
M1 - 161802
ER -