Radiative energy loss of heavy quark through soft gluon emission in QGP

28.03.2023, 10:00
20m
Dalberg (Stadthalle)

Dalberg

Stadthalle

Talk Heavy flavor and quarkonia Parallel: Heavy Flavours & Quarkonia

Sprecher

Taesoo Song (GSI)

Beschreibung

The Low's theorem is applied to the soft gluon emission from heavy quark scattering in quark-gluon plasma (QGP). The QGP is described by the DQPM (Dynamical QuasiParticle Model) which reproduces the EoS from lQCD at finite temperature and chemical potential. We show that if the emitted gluon is soft and of long wavelength, the scattering amplitude can be factorized into the scattering part and the emission part and the Slavnov-Taylor identities are satisfied in the leading order. Imposing a proper upper limit on the emitted gluon energy, we obtain the scattering cross sections of charm quark as well as the transport coefficients (momentum drag and diffusion) in the QGP with and without gluon emission.

Affiliation

GSI

Experiment/Theory Theory/Phenomenology

Hauptautoren

Taesoo Song (GSI) Ilia Grishmanovskii (ITP, Frankfurt) Dr. Olga Soloveva (Helmholtz Research Academy Hesse for FAIR) Elena Bratkovskaya (GSI, Darmstadt & Goethe University, Frankfurt)

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