Z-boson production in p-Pb collisions at √sNN = 8.16 TeV and Pb-Pb collisions at √sNN = 5.02 TeV
ALICE collaboration. (2020). Z-boson production in p-Pb collisions at √sNN = 8.16 TeV and Pb-Pb collisions at √sNN = 5.02 TeV. Journal of High Energy Physics, 2020(9), Article 76. https://doi.org/10.1007/jhep09(2020)076
Published inJournal of High Energy Physics
DisciplineYdin- ja kiihdytinfysiikan huippuyksikköFysiikkaCentre of Excellence in Nuclear and Accelerator Based PhysicsPhysics
© CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3
Measurement of Z-boson production in p-Pb collisions at √sNN = 8.16 TeV and Pb-Pb collisions at √sNN = 5.02 TeV is reported. It is performed in the dimuon decay channel, through the detection of muons with pseudorapidity −4 < ημ < −2.5 and transverse momentum pμT> 20 GeV/c in the laboratory frame. The invariant yield and nuclear modification factor are measured for opposite-sign dimuons with invariant mass 60 < mμμ < 120 GeV/c2 and rapidity 2.5 < yμμcms< 4. They are presented as a function of rapidity and, for the Pb-Pb collisions, of centrality as well. The results are compared with theoretical calculations, both with and without nuclear modifications to the Parton Distribution Functions (PDFs). In p-Pb collisions the center-of-mass frame is boosted with respect to the laboratory frame, and the measurements cover the backward (−4.46 < yμμcms< −2.96) and forward (2.03 < yμμcms< 3.53) rapidity regions. For the p-Pb collisions, the results are consistent within experimental and theoretical uncertainties with calculations that include both free-nucleon and nuclear-modified PDFs. For the Pb-Pb collisions, a 3.4σ deviation is seen in the integrated yield between the data and calculations based on the free-nucleon PDFs, while good agreement is found once nuclear modifications are considered. ...
ISSN Search the Publication Forum1126-6708
Publication in research information system
MetadataShow full item record
Showing items with similar title or keywords.
ϕ meson production in p+Al, p+Au, d+Au, and 3He+Au collisions at √sNN = 200 GeV PHENIX Collaboration (American Physical Society (APS), 2022)Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effects. The identified-particle spectra, ...
J/ψ production as a function of charged-particle multiplicity in p-Pb collisions at √sNN = 8.16 TeV ALICE collaboration (Springer, 2020)Inclusive J/ψ yields and average transverse momenta in p-Pb collisions at a center-of-mass energy per nucleon pair √sNN = 8.16 TeV are measured as a function of the charged-particle pseudorapidity density with ALICE. The ...
Nucleon dissociation and incoherent J/ψ photoproduction on nuclei in ion ultraperipheral collisions at the CERN Large Hadron Collider Guzey, Vadim; Strikman, M.; Zhalov, M. (American Physical Society, 2019)Using the general notion of cross section fluctuations in hadron-nucleus scattering at high energies, we derive an expression for the cross section of incoherent J / ψ photoproduction on heavy nuclei d σ γ A ...
Event-Shape Engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at √sNN = 5.02 TeV ALICE Collaboration (Springer, 2019)The production yield of prompt D mesons and their elliptic flow coefficient v2 were measured with the Event-Shape Engineering (ESE) technique applied to mid-central (10–30% and 30–50% centrality classes) Pb-Pb collisions ...
Double D-meson production in proton-proton and proton-lead collisions at the LHC Helenius, Ilkka; Paukkunen, Hannu (Elsevier BV, 2020)We consider the simultaneous production of two heavy-flavoured hadrons – particularly D mesons – at the LHC. We base our calculations on collinearly factorized QCD at next-to-leading order, using the contemporary parton ...