Charged lepton spectra from hot-spot evaporation

TL;DR

This paper calculates charged lepton spectra from hot-spot evaporation in SU(2) Yang-Mills thermodynamics, linking theoretical predictions to experimental observations in heavy-ion collisions and collider data.

Contribution

It introduces a novel calculation of lepton emission spectra from hot-spot evaporation in a specific gauge theory framework, connecting to experimental anomalies.

Findings

Reproduces narrow electron and positron peaks in heavy-ion collisions.

Shows spectra depend on kinematic cuts in collider data.

Proposes a scenario for high-multiplicity muon events in Tevatron data.

Abstract

Spectra for the emission of charged leptons from evaporating hot-spots of preconfining phase in SU(2) Yang-Mills thermodynamics are computed. Specifically, we consider charged single and dileptons with their spectra being functions of energy and invariant mass, respectively. In the former case, our results relate to narrow and correlated electron and positron peaks measured in supercritical heavy-ion collisions performed at GSI in the 1980ies. In the latter case, we point out how strongly the spectra depend on typical kinematic cuts (CDF analysis of Tevatron Run II data). We also propose a scenario on how muon events of anomalously high multiplicity and large impact-parameter modulus arise in the Tevatron data.