Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/11243
Title: Constraints on the spin-parity and anomalous HVV couplings of the Higgs boson in proton collisions at 7 and 8 TeV
Authors: Khachatryan, V
Sirunyan, AM
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Erö, J
Friedl, M
Frühwirth, R
Ghete, VM
Hartl, C
Zenoni, F
Adler, V
Beernaert, K
Benucci, L
Cimmino, A
Costantini, S
Crucy, S
Dildick, S
Fagot, A
Garcia, G
McCartin, J
Teodorescu, L
Ocampo Rios, AA
Ryckbosch, D
Salva Diblen, S
Sigamani, M
Reid, ID
Strobbe, N
Thyssen, F
Tytgat, M
Kyberd, P
Yazgan, E
Zaganidis, N
Khan, A
Basegmez, S
Hobson, PR
Cole, JE
Hörmann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Knünz, V
Krammer, M
Krätschmer, I
Liko, D
Mikulec, I
Rabady, D
Rahbaran, B
Rohringer, H
Schöfbeck, R
Strauss, J
Treberer-Treberspurg, W
Waltenberger, W
Wulz, CE
Mossolov, V
Shumeiko, N
Suarez Gonzalez, J
Alderweireldt, S
Bansal, S
Cornelis, T
De Wolf, EA
Janssen, X
Knutsson, A
Lauwers, J
Luyckx, S
Ochesanu, S
Rougny, R
Van De Klundert, M
Van Haevermaet, H
Van Mechelen, P
Van Remortel, N
Van Spilbeeck, A
Blekman, F
Blyweert, S
D'Hondt, J
Daci, N
Heracleous, N
Keaveney, J
Lowette, S
Maes, M
Olbrechts, A
Python, Q
Strom, D
Tavernier, S
Van Doninck, W
Van Mulders, P
Van Onsem, GP
Villella, I
Caillol, C
Clerbaux, B
De Lentdecker, G
Dobur, D
Favart, L
Gay, APR
Grebenyuk, A
Léonard, A
Mohammadi, A
Perniè, L
Randle-Conde, A
Reis, T
Seva, T
Thomas, L
Vander Velde, C
Vanlaer, P
Wang, J
Keywords: CMS experiment;Proton collisions;HVV couplings;Higgs boson
Issue Date: 2015
Publisher: American Physical Society
Citation: Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(1): 012004, (2015)
Abstract: The study of the spin-parity and tensor structure of the interactions of the recently discovered Higgs boson is performed using the H→ZZ,Zγ∗,γ∗γ∗→4, H→WW→νν, and H→γγ decay modes. The full data set recorded by the CMS experiment during the LHC run 1 is used, corresponding to an integrated luminosity of up to 5.1fb-1 at a center-of-mass energy of 7 TeV and up to 19.7fb-1 at 8 TeV. A wide range of spin-two models is excluded at a 99% confidence level or higher, or at a 99.87% confidence level for the minimal gravitylike couplings, regardless of whether assumptions are made on the production mechanism. Any mixed-parity spin-one state is excluded in the ZZ and WW modes at a greater than 99.999% confidence level. Under the hypothesis that the resonance is a spin-zero boson, the tensor structure of the interactions of the Higgs boson with two vector bosons ZZ, Zγ, γγ, and WW is investigated and limits on eleven anomalous contributions are set. Tighter constraints on anomalous HVV interactions are obtained by combining the HZZ and HWW measurements. All observations are consistent with the expectations for the standard model Higgs boson with the quantum numbers JPC=0++.
URI: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.012004
http://bura.brunel.ac.uk/handle/2438/11243
DOI: http://dx.doi.org/10.1103/PhysRevD.92.012004
ISSN: 1550-7998
1550-2368
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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