Quenching of high-pT hadrons: Alternative scenario
B.Z.Kopeliovich, I.K.Potashnikova, Ivan Schmidt
TL;DR
This paper proposes an alternative explanation for high-pT hadron suppression at RHIC, attributing it to the production length in a dense medium rather than energy loss, with successful data explanation and LHC predictions.
Contribution
It introduces a new scenario where suppression is governed by production length in a dense medium, challenging the traditional energy loss paradigm.
Findings
RHIC data are explained without free parameters
Suppression is controlled by production length in dense medium
Predictions for LHC are provided
Abstract
A new scenario, alternative to energy loss, for the observed suppression of high-pT hadrons observed at RHIC is proposed. In the limit of a very dense medium crated in nuclear collisions the mean free-path of the produced (pre)hadron vanishes, and and the nuclear suppression, R_{AA} is completely controlled by the production length. The RHIC data are well explained in a parameter free way, and predictions for LHC are provided.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Particle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions