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May 22 – 28, 2011
Centre Bonlieu
Europe/Zurich timezone

Prompt and detached J/psi production in p–p collisions at Sqrt(s) = 7 TeV with the ALICE detector

Not scheduled
Théâtre National (Centre Bonlieu)

Théâtre National

Centre Bonlieu

Board: 85
Poster Heavy flavor and quarkonia production


Carmelo Di Giglio (Universita’ di Bari and INFN sezione di Bari)


We will discuss the ALICE measurement preparation of the fraction of detached J/ψ (detected via its di-electron decay) coming from beauty hadrons semi-inclusive decays, i.e B → J/ψ + X. The measurement relies on the combined use of the ALICE TPC for tracking and particle identification via dE/dx, the ITS for tracking and detection of displaced vertices and the TRD for particle identification. Shown results are based on data collected in 2010 in proton-proton collisions at √s = 7 TeV. With increasing statistics following ALICE forthcoming data–taking, the approach adopted will be also crucial for both extracting the prompt J/ψ contribution from the total J/ψ cross–section, and measuring the differential beauty production cross-section, down to very low transverse momentum.

Primary author

Carmelo Di Giglio (Universita’ di Bari and INFN sezione di Bari)

Presentation materials

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