Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width

CMS Collaboration; V Khachatryan; A M Sirunyan; A Tumasyan; W Adam; E Asilar; T Bergauer; J Brandstetter; E Brondolin; M Dragicevic; J Erö; M Flechl; M Friedl; R Frühwirth; V M Ghete; C Hartl; N Hörmann; J Hrubec; M Jeitler; A König; M Krammer; I Krätschmer; D Liko; T Matsushita; I Mikulec; D Rabady; N Rad; B Rahbaran; H Rohringer; J Schieck; R Schöfbeck; J Strauss; W Treberer-Treberspurg; W Waltenberger; C E Wulz; V Mossolov; N Shumeiko; J Suarez Gonzalez; S Alderweireldt; T Cornelis; E A De Wolf; X Janssen; A Knutsson; J Lauwers; S Luyckx; M Van De Klundert; H Van Haevermaet; P Van Mechelen; N Van Remortel; A Van Spilbeeck; S Abu Zeid; F Blekman; J D Hondt; N Daci; I De Bruyn; K Deroover; N Heracleous; J Keaveney; S Lowette; S Moortgat; L Moreels; A Olbrechts; Q Python; D Strom; S Tavernier; W Van Doninck; P Van Mulders; I Van Parijs; H Brun; C Caillol; B Clerbaux; G De Lentdecker; G Fasanella; L Favart; R Goldouzian; A Grebenyuk; G Karapostoli; T Lenzi; A Léonard; T Maerschalk; A Marinov; A Randle-conde; T Seva; C Vander Velde; P Vanlaer; R Yonamine; F Zenoni; F Zhang; L Benucci; A Cimmino; S Crucy; D Dobur; A Fagot; G Garcia; Yasar Onel

doi:10.1007/JHEP09(2016)051

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Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width

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Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width

CMS Collaboration, V Khachatryan, A M Sirunyan, A Tumasyan, W Adam, E Asilar, T Bergauer, J Brandstetter, E Brondolin, M Dragicevic, …

Journal of high energy physics : JHEP, Vol.2016(9), 51

09/01/2016

DOI: 10.1007/JHEP09(2016)051

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Abstract

A search is presented for the Higgs boson off-shell production in gluon fusion and vector boson fusion processes with the Higgs boson decaying into a W+W− pair and the W bosons decaying leptonically. The data observed in this analysis are used to constrain the Higgs boson total decay width. The analysis is based on the data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 4.9 fb−1 at a centre-of-mass energy of 7 TeV and 19.4 fb−1 at 8 TeV, respectively. An observed (expected) upper limit on the off-shell Higgs boson event yield normalised to the standard model prediction of 2.4 (6.2) is obtained at the 95% CL for the gluon fusion process and of 19.3 (34.4) for the vector boson fusion process. Observed and expected limits on the total width of 26 and 66 MeV are found, respectively, at the 95% confidence level (CL). These limits are combined with the previous result in the ZZ channel leading to observed and expected 95% CL upper limits on the width of 13 and 26 MeV, respectively.

Details

Title: Subtitle: Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width
Creators: CMS Collaboration
V Khachatryan
A M Sirunyan
A Tumasyan
W Adam
E Asilar
T Bergauer
J Brandstetter
E Brondolin
M Dragicevic
J Erö
M Flechl
M Friedl
R Frühwirth
V M Ghete
C Hartl
N Hörmann
J Hrubec
M Jeitler
A König
M Krammer
I Krätschmer
D Liko
T Matsushita
I Mikulec
D Rabady
N Rad
B Rahbaran
H Rohringer
J Schieck
R Schöfbeck
J Strauss
W Treberer-Treberspurg
W Waltenberger
C E Wulz
V Mossolov
N Shumeiko
J Suarez Gonzalez
S Alderweireldt
T Cornelis
E A De Wolf
X Janssen
A Knutsson
J Lauwers
S Luyckx
M Van De Klundert
H Van Haevermaet
P Van Mechelen
N Van Remortel
A Van Spilbeeck
S Abu Zeid
F Blekman
J D Hondt
N Daci
I De Bruyn
K Deroover
N Heracleous
J Keaveney
S Lowette
S Moortgat
L Moreels
A Olbrechts
Q Python
D Strom
S Tavernier
W Van Doninck
P Van Mulders
I Van Parijs
H Brun
C Caillol
B Clerbaux
G De Lentdecker
G Fasanella
L Favart
R Goldouzian
A Grebenyuk
G Karapostoli
T Lenzi
A Léonard
T Maerschalk
A Marinov
A Randle-conde
T Seva
C Vander Velde
P Vanlaer
R Yonamine
F Zenoni
F Zhang
L Benucci
A Cimmino
S Crucy
D Dobur
A Fagot
G Garcia
Yasar Onel - Physics and Astronomy
Resource Type: Journal article
Publication Details: Journal of high energy physics : JHEP, Vol.2016(9), 51
DOI: 10.1007/JHEP09(2016)051
ISSN: 1126-6708
eISSN: 1029-8479
Language: English
Date published: 09/01/2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984428676602771

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