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Measurement of inclusive and differential cross sections for W+W− production in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV

CMS Collaboration; Hayrapetyan, A.; Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Hussain, P. S.; Jeitler, M.; Krammer, N.; Li, A.; Liko, D.; Mikulec, I.; Schieck, J.; Schöfbeck, R.; Schwarz, D.; Sonawane, M.; ... mehr

Abstract:

Measurements at √𝑠 = 13.6 TeV of the opposite-sign W boson pair production cross section in proton-proton
collisions are presented. The data used in this study were collected with the CMS detector at the CERN LHC in
2022, and correspond to an integrated luminosity of 34.8 fb$^{−1}$. Events are selected by requiring one electron and
one muon of opposite charge. A maximum likelihood fit is performed on signal- and background-enriched data
categories defined by the flavor and charge of the leptons, the number of jets, and number of jets originating
from b quarks. The overall sensitivity is significantly better than that of previous results with a similar integrated
luminosity. The improvement comes from a more refined control of experimental uncertainties and an improved
fit strategy. An inclusive W$^{+}$ W$^{-}$ production cross section of 125.7±5.6 pb is measured, in agreement with standard
model predictions. Cross sections are also reported in a fiducial region close to that of the detector acceptance,
both inclusively and differentially, as a function of the jet multiplicity in the event. For the first time in proton-
proton collisions, WW events with zero, one, and at least two jets are studied simultaneously and compared with
... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000178659
Veröffentlicht am 04.02.2025
Originalveröffentlichung
DOI: 10.1016/j.physletb.2024.139231
Scopus
Zitationen: 3
Web of Science
Zitationen: 3
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Experimentelle Teilchenphysik (ETP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Scientific Computing Center (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2025
Sprache Englisch
Identifikator ISSN: 0370-2693, 0031-9163, 1873-2410, 1873-2445
KITopen-ID: 1000178659
Erschienen in Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Verlag North-Holland Publishing
Band 861
Seiten 139231
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 31.12.2024
Nachgewiesen in Web of Science
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Scopus
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