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

France
Board: 85
Poster Heavy flavor and quarkonia production

Speaker

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

Description

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)

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