Observation of double J/ψ meson production in pPb collisions at sNN=8.16 TeV

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dc.contributor.authorHayrapetyan, A.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J.W.
dc.contributor.authorDamanakis, K.
dc.date.accessioned2025-01-12T17:09:11Z
dc.date.available2025-01-12T17:09:11Z
dc.date.issued2024
dc.departmentKMÜ, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümü
dc.description.abstractThe first observation of the concurrent production of two Formula Presented mesons in proton-nucleus collisions is presented. The analysis is based on a proton-lead (Formula Presented) data sample recorded at a nucleon-nucleon center-of-mass energy of 8.16 TeV by the CMS experiment at the CERN LHC and corresponding to an integrated luminosity of Formula Presented. The two Formula Presented mesons are reconstructed in their Formula Presented decay channels with transverse momenta Formula Presented and rapidity Formula Presented. Events where one of the Formula Presented mesons is reconstructed in the dielectron channel are also considered in the search. The Formula Presented process is observed with a significance of 5.3 standard deviations. The measured inclusive fiducial cross section, using the four-muon channel alone, is Formula Presented. A fit of the data to the expected rapidity separation for pairs of Formula Presented mesons produced in single (SPS) and double (DPS) parton scatterings yields Formula Presented and Formula Presented, respectively. This latter result can be transformed into a lower bound on the effective DPS cross section, closely related to the squared average interparton transverse separation in the collision, of Formula Presented at 95% confidence level. © 2024 CERN, for the CMS Collaboration.
dc.identifier.citationHayrapetyan, A., Hayrapetyan, A, Tumasyan, A, Adam, W, Andrejkovic, JW, Bergauer, T, Chatterjee, S, Damanakis, K, Dragicevic, M, Hussain, PS, Jeitler, M, Krammer, N, Li, A, Liko, D, Mikulec, I, Schieck, J, Schöfbeck, R, Schwarz, D, Sonawane, M, et al. (2024). Observation of double J/ψ meson production in pPb collisions at sNN=8.16 TeV. Physical Review D. https://escholarship.org/uc/item/6kp7s2b5
dc.identifier.doi10.1103/PhysRevD.110.092002
dc.identifier.issn2470-0010
dc.identifier.issue9
dc.identifier.scopus2-s2.0-85209751977
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://hdl.handle.net/11492/9195
dc.identifier.volume110
dc.indekslendigikaynakScopus
dc.institutionauthorSağır, Sinan
dc.institutionauthoridSağır, Sinan/0000-0002-2614-5860
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review D
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleObservation of double J/ψ meson production in pPb collisions at sNN=8.16 TeV
dc.typeArticle

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