Strangeness in Quark Matter 2019

Multiplicity-dependent production of heavy-flavour decay electrons in pp and p–Pb collisions with ALICE at the LHC

11 Jun 2019, 18:45

2h

Sala B1+C1 (Giulia Center) (Villa Romanazzi Carducci)

Poster Poster session with "aperitivo"

Speaker

Preeti Dhankher (IIT- Indian Institute of Technology (IN))

Description

Heavy-flavour production studies in pp collisions, besides providing the necessary baseline for measurements in Pb$-$Pb collisions, constitute a precision test of perturbative QCD calculations. In complex systems such as p$-$Pb collisions, it gives insights into the cold nuclear matter (CNM) effects and also characterizes the nuclear parton distribution functions in the low-$\mathit{x}$ region, where gluon saturation sets in. Furthermore, their production as a function of charged-particle multiplicity in pp and p$-$Pb collisions provides insights into the role of multiple-parton interactions (MPI) and the interplay between hard and soft mechanism in particle production. In p$-$Pb collisions, the production is also influenced by the concurrent multiple binary nucleon-nucleon collisions.
In this contribution, we will present the measurement of the yield of electrons from heavy-flavor hadron decays at mid-rapidity ($\left|\eta \right|<$ 0.8) as a function of the transverse momentum and charged-particle multiplicity estimated at mid-rapidity ($\left|\eta \right|<$ 1) in pp collisions at $\sqrt{s}$ = 13 TeV and in p$-$Pb collisions at $\sqrt{s_{\mathrm{N}\mathrm{N}}}$ = 8.16 TeV.