Collimation of energy in medium-modified QCD jets

Redamy Perez Ramos (1, 2) , Vincent Mathieu (3)

1 JYU - Department of Physics [Jyväskylä Univ]
2 IFIC - Instituto de Fisica Corpuscular
3 ECT* - European Center for Theoretical Studies in Nuclear Physics and Related Areas

The collimation of energy inside medium-modified jets is investigated in the leading logarithmic approximation of QCD. The Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations are slightly modified by introducing splitting functions enhanced in the infrared sector. As compared to elementary collisions in the vacuum, the angular istribution of the jet energy is found to broaden in QCD media.

Mots clés: Collimation; jets; QCD; QGP

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Redamy Perez Ramos, Vincent Mathieu. Collimation of energy in medium-modified QCD jets. 2012. ⟨hal-00716966v2⟩