19–23 Dec 2024
Swatantrata Bhavan, Banaras Hindu University, Varanasi
Asia/Kolkata timezone

Neutral to charged particle yield fluctuations in proton-proton collisions at LHC energies

Not scheduled
20m
Swatantrata Bhavan, Banaras Hindu University, Varanasi

Swatantrata Bhavan, Banaras Hindu University, Varanasi

Department of Physics, I.Sc., Banaras Hindu University, 221005 Varanasi, India
Postar Heavy ion and QCD

Speakers

Dr Md Samsul Islam (Indian Institute of Technology Bombay)Dr Arpit Singh (Indian Institute of Technology Bombay)

Description

The event-by-event fluctuations in particle yields in heavy-ion collisions are sensitive to the quark-gluon plasma (QGP) susceptibilities. The measurement of such fluctuations is of interest as they may show critical behavior in the proximity of phase boundary of hadron gas-QGP phase diagram. The $\nu_{\mathrm{dyn}}$ correlator is generally used to study the magnitude of fluctuations of the relative yields of particles. The recent observation of heavy-ion like features in high multiplicity proton-proton (pp) collisions reported by ALICE experiment has motivated high energy physics community to better understand the underlying events in small collision systems.\par
Recently, ALICE has reported the first measurement of $\nu_{\mathrm{dyn}}[\mathrm{K_{S}^{0}}, \mathrm{K^{\pm}}]$ in Pb$-$Pb collisions at $\rm{\sqrt{s_{NN}}}$ = 2.76 TeV. The $\nu_{\mathrm{dyn}}[\mathrm{K_{S}^{0}}, \mathrm{K^{\pm}}]$ shows a significant deviation from $\nu_{\mathrm{dyn}}[\mathrm{K^{+}}, \mathrm{K^{-}}]$ scaling. In this contribution, the results for $\nu_{\mathrm{dyn}}[\mathrm{K_{S}^{0}}, \mathrm{K^{\pm}}]$ and $\nu_{\mathrm{dyn}}[\mathrm{\Lambda}, \mathrm{p(\bar{p}})]$ as a function of multiplicity for a selected kinematic region in pp collisions at LHC energies using PYTHIA event generator will be presented.

Field of contribution Phenomenology

Author

Dr Md Samsul Islam (Indian Institute of Technology Bombay)

Co-authors

Dr Arpit Singh (Indian Institute of Technology Bombay) Mr Deependra Sharma (Indian Institute of Technology Bombay) Mr Rahul Verma (Indian Institute of Technology Bombay) Prof. Basanta Kumar Nandi (Indian Institute of Technology Bombay) Prof. Sadhana Dash (Indian Institute of Technology Bombay)

Presentation materials

There are no materials yet.