Электронный каталог

Статья

Hayrapetyan, A.
Measurement of Inclusive and Differential Cross Sections for W*+W*− Production in Proton-Proton Collisions at *%s = 13.6 TeV / A.Hayrapetyan, S.Afanasiev, V.Alexakhin, D.Budkouski, I.Golutvin, I.Gorbunov, V.Karjavine, V.Korenkov, A.Lanev, A.Malakhov, V.Matveev, V.Palichik, V.Perelygin, M.Savina, V.Shalaev, S.Shmatov, S.Shulha, V.Smirnov, N.Voytishin, B.S.Yuldashev, A.Zarubin, I.Zhizhin, Z.Tsamalaidze, [CMS Collab.] // Physics Letters B [Electronic resource]. – 2025. – Vol. 861. – P. 139231. – URL: https://doi.org/10.1016/j.physletb.2024.139231. – Bibliogr.: 71.

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&sup(−1). Events are selected by requiring one electron and one muon of opposite charge. A maximum likelihood t is performed on signal- and background-enriched data categories dened by the avor 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 rened control of experimental uncertainties and an improved fitstrategy. An inclusive W&sup(+)W&sup(−) production crosssection of 125.7 *( 5.6 pb is measured, in agreement with standard model predictions. Cross sections are also reported in a ducial region close to that of the detector acceptance, both inclusively and differentially, as a function of the jet multiplicity in the event. For the rst time in protonproton collisions, WW events with zero, one, and at least two jets are studied simultaneously and compared with recent theoretical predictions.



Спец.(статьи,препринты) = С 346.6е2 - Промежуточные бозоны
Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
ОИЯИ = ОИЯИ (JINR)2025