Soft photon bremsstrahlung at next-to-leading power

Bonocore D.; Kulesza A.

Research article (journal) | Peer reviewed

Abstract

The emission of soft radiation provides a fundamental probe of the consistency of the underlying quantum field theory. Correspondingly, the measurement of the soft photon bremsstrahlung, such as the one proposed with the planned future upgrade of the ALICE experiment at the LHC, is of great interest. In this letter we explore the possibility to implement analytic techniques that have been recently developed for soft gluon resummation at Next-to-Leading-Power (NLP) in the context of the soft photon spectrum. We provide a formula for the differential cross-section with shifted kinematics that is particularly suitable for numerical implementations. We also discuss the impact of loop corrections to Low's theorem due to radiative jet functions.

Details about the publication

JournalPhysics Letters B (Physics Letters B)
Volume833
StatusPublished
Release year2022
Language in which the publication is writtenEnglish
DOI10.1016/j.physletb.2022.137325
Link to the full texthttps://api.elsevier.com/content/abstract/scopus_id/85135709510
KeywordsBremsstrahlung; QCD; Next-to-leading power; Soft photons

Authors from the University of Münster

Kulesza, Anna
Professur für Theoretische Physik (Prof. Kulesza)