Bursts of low-energy electron-positron pairs in TeV-range collider physics

TL;DR

This paper proposes that certain high-energy proton-proton collisions at the LHC could produce bursts of low-energy electron-positron pairs and neutrinos due to a novel SU(2) Yang-Mills dynamics, leading to detectable energy signatures.

Contribution

It introduces a new theoretical scenario linking SU(2) Yang-Mills confinement to observable low-energy lepton bursts in collider physics, which has not been previously considered.

Findings

Predicted electron-positron bursts with energies around 511 keV

Large energy defect indicating anomalous event suppression at high energies

Potential indirect detection through energy spectrum analysis

Abstract

In this Letter we investigate the possible emission of low-energy electron neutrinos and electron-positron pairs of anomalously large multiplicity in close-to-central $pp$ collisions at LHC. The scenario is based on confining SU(2) Yang-Mills dynamics of Hagedorn temperature $\sim m_e=511 $keV being responsible for the emergence of the lightest lepton family and the weak interactions of the Standard Model. Although cut off by LHC's detectors these electrons-positron bursts would be seen indirectly by a large defect energy and thus an anomalously strong decrease of events with interesting high-energy secondaries for increasing $\sqrt{s}$ . This is because the formation of superconducting (preconfining) SU(2) hot-spots `steals' a large fraction of $\sqrt{s}$ subsequently transferring it to a thermal spectrum of electron neutrinos, electrons, and positrons liberated through evaporation. We thus propose the detection of electrons and positrons of kinetic energy $\sim m_e$ and photons of energy $\sim 2 m_e$.