scholarly journals Collisional energy loss of a heavy quark in an anisotropic quark-gluon plasma

2005 ◽  
Vol 71 (12) ◽  
Author(s):  
Paul Romatschke ◽  
Michael Strickland
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Collisional Energy Loss ◽  
Collisional Energy

scholarly journals Nonperturbative collisional energy loss of heavy quarks in quark-gluon plasma

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
Nikolai Kochelev ◽  
Hee-Jung Lee ◽  
Yongseok Oh ◽  
Baiyang Zhang ◽  
Pengming Zhang
Keyword(s):  
Energy Loss ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Heavy Quarks ◽  
Collisional Energy Loss ◽  
Collisional Energy

scholarly journals HEAVY QUARK ENERGY LOSS THROUGH SOFT QCD SCATTERING IN THE QGP

2007 ◽  
Vol 16 (07n08) ◽  
pp. 2072-2078 ◽  
Author(s):  
KORINNA ZAPP ◽  
GUNNAR INGELMAN ◽  
JOHAN RATHSMAN ◽  
JOHANNA STACHEL
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Jet Quenching ◽  
Gluon Radiation ◽  
Strong Suppression ◽  
Charm Quarks ◽  
Collisional Energy Loss ◽  
Collisional Energy ◽  
Model Based ◽  
Quark Energy Loss

A strong suppression of non-photonic electrons in Au + Au collisions is observed at Rhic. This is in disagreement with the expected dominance of the energy loss via gluon radiation, which predicts a much weaker suppression of heavy flavours due to the dead cone effect. However, collisional energy loss is also important, as demonstrated recently by the Soft Colour Interaction Jet Quenching model. Based on this model we show that collisional energy loss of charm quarks gives a suppression of electrons of the observed magnitude, but the contribution from beauty decays, which dominates at intermediate and large p⊥, results in a somewhat weaker overall suppression of electrons than observed.

scholarly journals Heavy quark radiation in the quark–gluon plasma in the Moliere theory: angular distribution of the radiation

2021 ◽  
Vol 81 (9) ◽  
Author(s):  
B. Blok
Keyword(s):  
Angular Distribution ◽  
Phase Space ◽  
Energy Loss ◽  
Heavy Quark ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Transverse Momentum Distribution ◽  
Coulomb Interactions ◽  
The Dead ◽  
Quark Energy Loss

AbstractWe study the effects of adding the Coulomb interactions to the harmonic oscillator (HO) approximation of the heavy parton propagating through the quark–gluon plasma (the extension to QCD of the Molliere theory). We explicitly find the expression for the transverse momentum distribution of the gluon radiation of the heavy quark propagating in the quark gluon plasma in the framework of the Moliere theory, taking into account the BDMPSZ radiation in the HO approximation, and the Coulomb logarithms described by the additional logarithmic terms in the effective potential. We show that these Coulomb logarithms significantly influence the HO distribution, derived in the BDMPSZ works, especially for the small transverse momenta, filling the dead cone, and reducing the dead cone suppression of the heavy quark radiation (dead cone effect). In addition we study the effect of the phase space constraints on the heavy quark energy loss, and argue that taking into account of both the phase space constraints and of the Coulomb gluons reduces the dependence of the heavy quark energy loss on its mass in the HO approximation.

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