Abstract
We present the current status and Monte Carlo study based performance estimates of b-jet tagging using ALICE, as obtained using both impact parameter as well as secondary vertex methods. We also address the prospects of the identification of electrons from heavy-flavour hadron decays to obtain b-jet enhanced jet samples.
Highlights
Charm and beauty quarks, produced in the early stage of heavy-ion collisions, are ideal probes to study the characteristics of the hot and dense deconfined medium (Quark-Gluon Plasma) formed in these collisions
We present the current status and Monte Carlo study based performance estimates of b-jet tagging using ALICE, as obtained using both impact parameter as well as secondary vertex methods
We present a MC study of the b-jet tagging performance in ALICE for pp collisions at s = 7 TeV using two different algorithms, both exploiting the long lifetime and high mass of B mesons to discriminate b-jets from jets from lighter partons
Summary
Charm and beauty quarks, produced in the early stage of heavy-ion collisions, are ideal probes to study the characteristics of the hot and dense deconfined medium (Quark-Gluon Plasma) formed in these collisions. The radiative energy loss of high energy partons interacting with the medium is expected [1][2] to be larger for gluons than for quarks, and to depend on the quark mass, with beauty quarks losing less energy than charm quarks, light quarks and gluons. A comparison of the modification in the momentum distribution or possibly in the jet shape of b-jets with that of light flavour or c-jets in Pb-Pb collisions relative to pp collisions allows one to investigate the mass dependence of the energy loss. We present a MC study of the b-jet tagging performance in ALICE for pp collisions at s = 7 TeV using two different algorithms, both exploiting the long lifetime and high mass of B mesons to discriminate b-jets from jets from lighter partons
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