$\varphi$ meson production at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV

Abstract

$\varphi$ meson measurements provide insight into strangeness production, which is one of the key observables for the hot medium formed in high-energy heavy-ion collisions. ALICE measured $\varphi$ production through its decay in muon pairs in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV in the intermediate transverse momentum range $2<p_{\mathrm{T}}<5$ GeV/$c$ and in the rapidity interval $2.5<y<4$. The $\varphi$ yield was measured as a function of the transverse momentum and collision centrality. The nuclear modification factor was obtained as a function of the average number of participating nucleons. Results were compared with the ones obtained via the kaon decay channel in the same $p_{\mathrm{T}}$ range at midrapidity. The values of the nuclear modification factor in the two rapidity regions are in agreement within uncertainties.

26 pages, 8 captioned figures, 5 tables, authors from page 21, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/4250

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Cited by in corpus (1)

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