Speaker
Linus Feldkamp
(Westfaelische Wilhelms-Universitaet Muenster (DE))
Description
Study of b-jet tagging performance in ALICE
Linus Feldkamp, for the ALICE Collaboration
Heavy 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 energy loss of high energy partons interacting with the medium is expected to be larger for gluons than for quarks, and to depend on
the quark mass, with beauty quarks losing less energy than charm and light quarks.
A comparison of the modification of b-jets with that of light flavour or c-jets in Pb-Pb collisions, therefore, allows to investigate this energy loss mass dependence.
It may also allow to study the destination of the lost energy and possible modifications to b fragmentation in the medium.
In this poster we present a MC study of the b-jet tagging performance in ALICE for pp collisions at √s = 7 TeV using different algorithms, all exploiting the long lifetime and high mass of B mesons to discriminate b-jets from jets from light partons.
Author
Linus Feldkamp
(Westfaelische Wilhelms-Universitaet Muenster (DE))
