Measurement of electrons from heavy-flavour decays in pp and Pb-Pb collisions with ALICE at the LHC

Kweon, M. J. 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) Measurement of electrons from heavy-flavour decays in pp and Pb-Pb collisions with ALICE at the LHC. NUCLEAR PHYSICS A, 910-91. pp. 405-408. ISSN 0375-9474

Preview

Text 1208.5411v2.pdf Available under License Creative Commons Attribution. Download (444kB) | Preview

Abstract

The ALICE experiment has measured at mid-rapidity electrons from heavy-flavour decays in pp collisions at √ s = 2.76 and 7 TeV, and in Pb-Pb collisions at √ sNN = 2.76 TeV. In pp collisions, electrons from charm-hadron and from beauty-hadron decays are identified by applying cuts on displaced vertices. Alternatively the relative yield of electrons from beauty decays to those from heavy-flavour decays is extracted using electron-hadron correlations. Results are compared to pQCD-based calculations. In Pb-Pb collisions, the pT dependence of the nuclear modification factor of electrons from heavy-flavour decays is presented in two centrality classes. The status of the analysis of electrons from beauty decays in Pb-Pb collisions is reported, in view of the measurement of the corresponding nuclear modification factor.

Actions (login required)

Edit Item