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Measurement of prompt ψ(2S) production cross sections in proton-lead and proton-proton collisions at √sNN = 5.02 TeV


(CMS Collaboration) Sirunyan, Albert; ...; Đurić, Senka; Lelas, Damir; Godinović, Nikola; Puljak, Ivica; Šćulac, Toni; Mesić, Benjamin; Šuša, Tatjana; Kovač, Marko et al.
Measurement of prompt ψ(2S) production cross sections in proton-lead and proton-proton collisions at √sNN = 5.02 TeV // Modern physics letters B, 790 (2019), 509-532 doi:10.1016/j.physletb.2019.01.058 (međunarodna recenzija, članak, znanstveni)


Naslov
Measurement of prompt ψ(2S) production cross sections in proton-lead and proton-proton collisions at √sNN = 5.02 TeV

Autori
Sirunyan, Albert ; ... ; Đurić, Senka ; Lelas, Damir ; Godinović, Nikola ; Puljak, Ivica ; Šćulac, Toni ; Mesić, Benjamin ; Šuša, Tatjana ; Kovač, Marko ; Ferenček, Dinko ; Antunović, Željko ; Starodumov, Andrey ; Brigljević, Vuko ; Luetić, Jelena ; Kadija, Krešo ; ... ; Woods, Nate

Kolaboracija
CMS Collaboration

Izvornik
Modern physics letters B (0217-9849) 790 (2019); 509-532

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model

Sažetak
Measurements of prompt ψ(2S) meson production cross sections in proton-lead (pPb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of √sNN = 5.02 TeV are reported. The results are based on pPb and pp data collected by the CMS experiment at the LHC, corresponding to integrated luminosities of 34.6 nb-1 and 28.0 pb-1, respectively. The nuclear modification factor RpPb is measured for prompt ψ(2S) in the transverse momentum range 4 < pT < 30GeV/c and the center-of-mass rapidity range −2.4 < yCM < 1.93. The results on ψ(2S) RpPb are compared to the corresponding modification factor for prompt ψ(2S) mesons. The results point to different nuclear effects at play in the production of the excited charmonium state compared to the ground state, in the region of backward rapidity and for pT<10GeV/c.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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