Full solution of the medium-induced radiation spectrum

New measurements of jet quenching observables at RHIC and at the LHC, such as jet substructure observables, demand an increased precision in the theory calculations describing medium-induced radiation of gluons. Closed expressions for the gluon spectrum including a full resummation of multiple scatt...

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Bibliographic Details
Published inPos : proceedings of science Vol. 387
Main Authors Andres, Carlota, Apolinario, Liliana, Dominguez, Fabio
Format Journal Article
LanguageEnglish
Published United States SISSA 01.09.2021
Subjects
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Summary:New measurements of jet quenching observables at RHIC and at the LHC, such as jet substructure observables, demand an increased precision in the theory calculations describing medium-induced radiation of gluons. Closed expressions for the gluon spectrum including a full resummation of multiple scatterings have been known for the past 20 years. Still they have only been evaluated in specific limits either taking a few terms in an opacity expansion or by employing a Gaussian approximation for the interaction potential -- which misses essential physical effects. We present here a new flexible method to compute the full spectrum for a realistic interaction potential, thus allowing us for the first time to properly quantify the effect of the all-order resummation of multiple scatterings. This new approach paves the way for precision phenomenological studies including multiple scattering effects such as coherence phenomena.
Bibliography:JLAB-THY-20-3245; DOE/OR/23177-5121; arXiv:2109.06571
AC05-06OR23177
USDOE Office of Science (SC), Nuclear Physics (NP)
ISSN:1824-8039
1824-8039