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Measurement of differential and integrated fiducial cross sections for Higgs boson production in the four-lepton decay channel in pp collisions at √s = 7 and 8 TeV

CMS Collaboration; Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V.M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Knünz, V.; König, A.; ... mehr

Abstract (englisch):
Integrated fiducial cross sections for the production of four leptons via the H → 4ℓ decays (ℓ = e, μ) are measured in pp collisions at √s =7 and 8TeV. Measurements are performed with data corresponding to integrated luminosities of 5.1 fb−1 at 7TeV, and 19.7 fb−1 at 8 TeV, collected with the CMS experiment at the LHC. Differential cross sections are measured using the 8 TeV data, and are determined as functions of the transverse momentum and rapidity of the four-lepton system, accompanying jet multiplicity, transverse momentum of the leading jet, and difference in rapidity between the Higgs boson candidate and the leading jet. A measurement of the Z → 4ℓ cross section, and its ratio to the H → 4ℓ cross section is also performed. All cross sections are measured within a fiducial phase space defined by the requirements on lepton kinematics and event topology. The integrated H → 4ℓ fiducial cross section is measured to be 0. 56 − 0.44 + 0.67 (stat) − 0.06 + 0.21 (syst) fb at 7 TeV, and 1. 11 − 0.35 + 0.41 (stat) − 0.10 + 0.14 (syst) fb at 8 TeV. The measurements are found to be compatible with theoretical calculations based on the standard model.

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Volltext §
DOI: 10.5445/IR/1000055374
Originalveröffentlichung
DOI: 10.1007/JHEP04(2016)005
Scopus
Zitationen: 23
Web of Science
Zitationen: 37
Coverbild
Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator ISSN: 1126-6708
urn:nbn:de:swb:90-553741
KITopen-ID: 1000055374
Erschienen in Journal of High Energy Physics
Band 2016
Heft 4
Seiten 5
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Nachgewiesen in Scopus
Web of Science
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