scholarly journals Heavy Quark Jet Quenching with Collisional plus Radiative Energy Loss and Path Length Fluctuations

2007 ◽  
Vol 783 (1-4) ◽  
pp. 493-496 ◽  
Author(s):  
Simon Wicks ◽  
William Horowitz ◽  
Magdalena Djordjevic ◽  
Miklos Gyulassy
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Path Length ◽  
Jet Quenching ◽  
Radiative Energy ◽  
Radiative Energy Loss

scholarly journals Scaling behaviors of heavy flavor meson suppression and flow in different nuclear collision systems at the LHC

2021 ◽  
Vol 81 (11) ◽  
Author(s):  
Shu-Qing Li ◽  
Wen-Jing Xing ◽  
Xiang-Yu Wu ◽  
Shanshan Cao ◽  
Guang-You Qin
Keyword(s):  
Heavy Quark ◽  
Elliptic Flow ◽  
System Size ◽  
Heavy Ion ◽  
Heavy Meson ◽  
Jet Quenching ◽  
Flow Coefficient ◽  
Radiative Energy ◽  
Heavy Flavor ◽  
Radiative Energy Loss

AbstractWe explore the system size dependence of heavy-quark-QGP interaction by studying the heavy flavor meson suppression and elliptic flow in Pb–Pb, Xe–Xe, Ar–Ar and O–O collisions at the LHC. The space-time evolution of the QGP is simulated using a $$(3+1)$$ ( 3 + 1 ) -dimensional viscous hydrodynamic model, while the heavy-quark-QGP interaction is described by an improved Langevin approach that includes both collisional and radiative energy loss inside a thermal medium. Within this framework, we provides a reasonable description of the D meson suppression and flow coefficients in Pb–Pb collisions, as well as predictions for both D and B meson observables in other collision systems yet to be measured. We find a clear hierarchy for the heavy meson suppression with respect to the size of the colliding nuclei, while their elliptic flow coefficient relies on both the system size and the geometric anisotropy of the QGP. Sizable suppression and flow are predicted for both D and B mesons in O–O collisions, which serve as a crucial bridge of jet quenching between large and small collision systems. Scaling behaviors between different collision systems are shown for heavy meson suppression factor and the bulk-eccentricity-rescaled heavy meson elliptic flow as functions of the number of participant nucleons in heavy-ion collisions.

scholarly journals Revisiting heavy quark radiative energy loss in nuclei within the high-twist approach

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
Yi-Lun Du ◽  
Yayun He ◽  
Xin-Nian Wang ◽  
Hongxi Xing ◽  
Hong-Shi Zong
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Radiative Energy ◽  
High Twist ◽  
Radiative Energy Loss

DEAD CONE EFFECT OF HEAVY QUARK IN MEDIUM

2007 ◽  
Vol 16 (07n08) ◽  
pp. 2123-2129 ◽  
Author(s):  
X. M. ZHANG ◽  
D. C. ZHOU ◽  
W. C. XIANG
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Light Quark ◽  
Medium Effect ◽  
Radiative Energy ◽  
Bottom Quarks ◽  
Radiative Energy Loss ◽  
Charm Quarks ◽  
Factorial Method ◽  
Cone Approximation

We demonstrate by using Wiedemann's gluon radiative spectrum that heavy quark radiative energy loss spectrum can be factorized as the light quark radiative energy loss spectrum times a dead cone factor in the absence of medium effect. The availability of factorial approach with a dead cone approximation in medium is studied by Djordjevic-Gyulassy (D-G) and GLV (M.Gyulassy, P.Levai and I.Vitev) formulas. The numerical results show that the factorial method with a dead cone approximation is more suitable for charm quarks than bottom quarks at both RHIC and LHC energies.

scholarly journals Testing the Reliability of the Soft-Gluon Approximation for High p⊥ Particles

Proceedings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 13
Author(s):  
Bojana Blagojevic ◽  
Magdalena Djordjevic ◽  
Marko Djordjevic
Keyword(s):  
Energy Loss ◽  
Jet Quenching ◽  
Soft Gluon ◽  
Radiative Energy ◽  
Gluon Radiation ◽  
Radiative Energy Loss ◽  
First Order ◽  
Analytical Expressions ◽  
Made In

The soft-gluon approximation assumes that a high p ⊥ parton propagating through dense QCD matter loses only a small amount of its energy via gluon radiation. This assumption is made in many different jet quenching approaches, which nevertheless predicted a sizable radiative energy loss of such particles. This questions the reliability of this approximation, which must then be reconsidered. To address this issue, we relaxed the soft-gluon approximation within the DGLV formalism to the first order in opacity. The obtained analytical expressions are notably different from the soft-gluon case. Surprisingly the numerical effects that stem from waiving this assumption on fractional radiative energy loss and number of radiated gluons are small. Additionally, the effect on suppression is negligible, which can be intuitively understood by the cancellation of the opposite effects on the above mentioned variables. Consequently, our results surprisingly indicate that, contrary to the doubts mentioned above, the soft-gluon approximation remains well-founded within the DGLV formalism. We also investigate the effects of this assumption in the case of a dynamical medium, which suggests generality of the conclusions presented here.

scholarly journals Heavy quark radiative energy loss—applications to RHIC

2004 ◽  
Vol 30 (8) ◽  
pp. S1183-S1187 ◽  
Author(s):  
Magdalena Djordjevic ◽  
Miklos Gyulassy
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Radiative Energy ◽  
Radiative Energy Loss

scholarly journals Heavy quark radiative energy loss in QCD matter

2004 ◽  
Vol 733 (3-4) ◽  
pp. 265-298 ◽  
Author(s):  
Magdalena Djordjevic ◽  
Miklos Gyulassy
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Radiative Energy ◽  
Radiative Energy Loss

Kinematics of Heavy Quark Radiative Energy Loss in Viscous QCD Plasma

2018 ◽  
Vol 59 (5) ◽  
Author(s):  
Sreemoyee Sarkar ◽  
Chandrodoy Chattopadhyay ◽  
Subrata Pal
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Radiative Energy ◽  
Radiative Energy Loss
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