Work

A unified description of small, peripheral, and large system suppression data from pQCD

Year: 2025

Type: article

Abstract: We present quantitative predictions for the nuclear modification factor in both small and peripheral systems from a pQCD-based energy loss model that is constrained by light- and heavy-flavor suppression data from central heavy-ion collisions. We find nearly identical suppression for central p / d + A collisions as for peripheral A + A collisions, quantitatively consistent with the measured 20% suppression of neutral pions produced in d + Au collisions by PHENIX, but dramatically inconsistent with the measured 20% enhancement of charged hadrons produced in p + Pb collisions by ATLAS. We demonstrate that this equivalence of central small system suppression and peripheral large system suppression is insensitive to the underlying energy loss model.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2025.139437

Authors: Coleridge Faraday, W.A. Horowitz

Institution: University of Cape Town

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: CERN, National Research Foundation, University of Capetown, University of Cape Town

OpenAlex ID: W4409107254

FWCI: 2.363

Cites: 62

Cited by: 5

Related to: 10