Inclusive J<i>/</i>ψ production at mid-rapidity in pp collisions at √<i>s</i>=5<i>.</i>02 TeV


Acharya S., Adamová D., Adhya S., Adler A., Adolfsson J., Aggarwal M., ...Daha Fazla

JOURNAL OF HIGH ENERGY PHYSICS, sa.10, 2019 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/jhep10(2019)084
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Heavy Ion Experiments
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

Inclusive J/psi production is studied in minimum-bias proton-proton collisions at a centre-of-mass energy of root s = 5.02 TeV by ALICE at the CERN LHC. The measurement is performed at mid-rapidity (vertical bar y vertical bar < 0.9) in the dielectron decay channel down to zero transverse momentum p(T), using a data sample corresponding to an integrated luminosity of L-int = 19.4 +/- 0.4 nb(-1). The measured p(T)-integrated inclusive J/psi production cross sec- tion is d sigma/dy = 5.64 +/- 0.22(stat.) +/- 0.33(syst.) +/- 0.12(lumi.) mu b. The p(T)-differential cross section d(2)sigma/dp(T)dy is measured in the p(T) range 0-10 GeV/c and compared with state-of-the-art QCD calculations. The J/psi < p(T)> and < p(T)(2)> are extracted and compared with results obtained at other collision energies.