activity
20192026
most citedNANOGrav spectral index from melting domain walls

55 citations · 131 across the 14 of their papers we have counts for

collaborators
Showing nucl-thShow all

11 papers · 1 filter

nucl-th2026

Thermal and geometric normal modes of spectral fluctuations in heavy-ion collisions

Rupam Samanta

The transverse momentum spectrum of charged particles in ultra-relativistic heavy-ion collisions fluctuates event-by-event, encoding signatures of underlying collective dynamics. S…

nucl-th2024

Probing collectivity in heavy-ion collisions with fluctuations of the spectrum

Tribhuban Parida, Rupam Samanta, Jean-Yves Ollitrault

Event-by-event fluctuations in the initial stages of ultrarelativistic nucleus-nucleus collisions depend little on rapidity. The hydrodynamic expansion which occurs in later stages…

nucl-th2024

Multiplicity fluctuations and rapidity correlations in ultracentral proton-nucleus collisions

Rupam Samanta, Jean-Yves Ollitrault

A collision between a proton and a heavy nucleus at ultrarelativistic energy creates particles whose rapidity distribution is asymmetric, with more particles emitted in the directi…

nucl-th2023

Transverse momentum fluctuation in ultra-central Pb+Pb collision at the LHC

Rupam Samanta, Somadutta Bhatta, Jiangyon Jia +2

The ATLAS collaboration has recently observed that the variance of the transverse momentum per particle (), when measured as a function of the collision multiplicity ($N_{…

nucl-th2023

Momentum dependent measures of correlations between mean transverse momentum and harmonic flow in heavy ion collisions

Rupam Samanta, Piotr Bozek

The correlation between the mean transverse momentum and the harmonic flow coefficients is an observable which is of great interest; it is sensitive to shape fluctuations in the in…

nucl-th2023★ 16 cited

Non-Gaussian transverse momentum fluctuations from impact parameter fluctuations

Rupam Samanta, João Paulo Picchetti, Matthew Luzum +1

The transverse momentum per particle, , fluctuates event by event in ultrarelativistic nucleus-nucleus collisions, for a given multiplicity. These fluctuations are small and…

nucl-th2023★ 1 cited

Thermalization at the femtoscale seen in high-energy Pb+Pb collisions

Rupam Samanta, Somadutta Bhatta, Jiangyong Jia +2

A collision between two atomic nuclei accelerated at a speed close to that of light creates a dense system of quarks and gluons. Interactions among them are so strong that they beh…

nucl-th2023★ 5 cited

Momentum dependent flow correlations in deformed nuclei at collision energies available at the BNL Relativistic Heavy Ion Collider

Rupam Samanta, Piotr Bozek

Flow fluctuations in ultra-relativistic heavy-ion collision can be probed by studying the momentum dependent correlations or the factorization-breaking coefficients between flow ha…

nucl-th2022

Probing flow fluctuations through factorization breaking of harmonic flows in heavy-ion collisions

Piotr Bozek, Rupam Samanta

We study factorization-breaking coefficients between the momentum dependent and momentum averaged flow vectors to probe flow fluctuations caused by initial-state fluctuations in he…

nucl-th2021★ 15 cited

Factorization breaking for higher moments of harmonic flow

Piotr Bozek, Rupam Samanta

We study correlations between harmonic flow vectors squared measured at different transverse momenta. One of the flow harmonics squared is taken at a fixed transverse momentum and…

nucl-th2021★ 16 cited

Higher order cumulants of transverse momentum and harmonic flow in relativistic heavy ion collisions

Piotr Bozek, Rupam Samanta

Higher order symmetric cumulants of global collective observables in heavy ion collisions are studied. The symmetric cumulants can be straightforwardly constructed for scalar obser…