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Constraints on the double-parton scattering cross section from same-sign W boson pair production in proton-proton collisions at √s = 8 TeV

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Grossmann, J.; Hrubec, J.; Jeitler, M.; König, A.; ... mehr

Abstract:

A first search for same-sign WW production via double-parton scattering is performed based on proton-proton collision data at a center-of-mass energy of 8 TeV using dimuon and electron-muon final states. The search is based on the analysis of data corresponding to an integrated luminosity of 19.7 fb−1. No significant excess of events is observed above the expected single-parton scattering yields. A 95% confidence level upper limit of 0.32 pb is set on the inclusive cross section for same-sign WW production via the double-parton scattering process. This upper limit is used to place a 95% confidence level lower limit of 12.2 mb on the effective double-parton cross section parameter, closely related to the transverse distribution of partons in the proton. This limit on the effective cross section is consistent with previous measurements as well as with Monte Carlo event generator predictions.


Verlagsausgabe §
DOI: 10.5445/IR/1000081647
Veröffentlicht am 09.04.2018
Originalveröffentlichung
DOI: 10.1007/JHEP02(2018)032
Scopus
Zitationen: 28
Web of Science
Zitationen: 28
Dimensions
Zitationen: 21
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Physik – Institut für Experimentelle Kernphysik (IEKP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2018
Sprache Englisch
Identifikator ISSN: 1029-8479, 1126-6708
urn:nbn:de:swb:90-816470
KITopen-ID: 1000081647
Erschienen in Journal of high energy physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 2018
Heft 2
Seiten Article: 32
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Schlagwörter Hadron-Hadron scattering (experiments)
Nachgewiesen in Dimensions
Web of Science
Scopus
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