Open heavy flavour and J/psi production in proton-proton collisions measured with the ALICE experiment at LHC

Geuna, C. and Abelev, B. and Adam, J. and Adamová, D. and Adare, A. M. and Aggarwal, M. M. and Agnello, M. and Agócs, András and Agostinelli, A. and Ahammed, Z. and Ahmad, Masoodi A. and Ahmad, N. and Ahn, S. A. and Ahn, S. U. and Ajaz, M. and Akindinov, A. and Alaniz, E. C. and Aleksandrov, D. and Alessandro, B. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and Altini, V. and Altinpinar, S. and Altsybeev, I. and Andrei, C. and Andronic, A. and Anguelov, V. and Anielski, J. and Barnaföldi, Gergely Gábor and Bencédi, Gyula and Berényi, Dániel and Boldizsár, László and Dénes, Ervin and Hamar, Gergő and Lévai, Péter and Pochybova, Sona (2013) Open heavy flavour and J/psi production in proton-proton collisions measured with the ALICE experiment at LHC. NUCLEAR PHYSICS A, 910-91. pp. 347-350. ISSN 0375-9474

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Abstract

Open heavy flavour and J/ψ production are powerful tools to test pQCD predictions in proton-proton (pp) collisions in the new LHC energy regime. In addition, they provide the necessary reference for the ALICE heavy-ion program. The ALICE experiment at the LHC collected pp collision data at √ s = 7 and 2.76 TeV in 2010 and 2011. We report here the latest results of open heavy flavour and J/ψ production at both mid- and forward-rapidity via several hadronic and leptonic decay channels. These include, among other topics, the first LHC result on J/ψ polarization, multiplicity dependence of the J/ψ production, D-meson measurement down to low transverse momentum (pT) and J/ψ production from B-hadron decays. Comparisons with different theoretical models will be discussed as well.

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