Refine
Language
- English (184)
Has Fulltext
- yes (184)
Is part of the Bibliography
- no (184)
Keywords
- Hadron-Hadron Scattering (3)
- Charm physics (2)
- Heavy Ions (2)
- ALICE experiment (1)
- Cardiopulmonary bypass (1)
- Centrality Class (1)
- Centrality Selection (1)
- Charmonia (1)
- Elliptic flow (1)
- Enteral nutrition (1)
Institute
- Physik (181)
- Frankfurt Institute for Advanced Studies (FIAS) (172)
- Informatik (171)
- Medizin (3)
- Hochschulrechenzentrum (1)
The first study of ϕ-meson production in p-Pb collisions at forward and backward rapidity, at a nucleon-nucleon centre-of-mass energy sNN−−−√=5.02~TeV, has been performed with the ALICE apparatus at the LHC. The ϕ-mesons have been identified in the dimuon decay channel in the transverse momentum (pT) range 1<pT<7 GeV/c, both in the p-going (2.03<y<3.53) and the Pb-going (−4.46<y<−2.96) directions, where y stands for the rapidity in the nucleon-nucleon centre-of-mass, the integrated luminosity amounting to 5.01±0.19~nb−1 and 5.81±0.20~nb−1, respectively, for the two data samples. Differential cross sections as a function of transverse momentum and rapidity are presented. The forward-backward ratio for ϕ-meson production is measured for 2.96<|y|<3.53, resulting in a ratio ∼0.5 with no significant pT dependence within the uncertainties. The pT dependence of the ϕ nuclear modification factor RpPb exhibits an enhancement up to a factor 1.6 at pT = 3-4 GeV/c in the Pb-going direction. The pT dependence of the ϕ-meson cross section in pp collisions at s√ = 2.76 TeV, which is used to determine a reference for the p-Pb results, is also presented here for 1<pT<5 GeV/c and 2.5<y<4 for a 78±3~nb−1 integrated luminosity sample.