Fluctuations in Strong-Coupling Heavy Quark Energy Loss
نویسنده
چکیده
We present recent and new results for observables related to heavy quarks from a strong-coupling energy loss model that includes fluctuations in the energy loss. We find that the inclusion of these next-to-leading order fluctuations yields results consistent with all measured data. Correlation measurements and bottom decays to electrons are potential future measurements that can distinguish between weakand strong-coupling energy loss models.
منابع مشابه
Shock Treatment: Heavy Quark Energy Loss in a Novel AdS/CFT Geometry
We first note the failures of traditional pQCD techniques as applied to high-pT heavy ion physics and the suggestion of examining the double ratio of charm to bottom nuclear modification factors to generically distinguish between these weak coupling ideas and the strong coupling ideas of AdS/CFT. In order to gain confidence in the use of AdS/CFT (and to increase the likelihood of falsifying it ...
متن کاملImproving a radiative plus collisional energy loss model for application to RHIC and LHC
With the QGP opacity computed perturbatively and with the global entropy constraints imposed by the observed dN ch /dy ≈ 1000, radiative energy loss alone cannot account for the observed suppression of single non-photonic electrons. Collisional energy loss is comparable in magnitude to radiative loss for both light and heavy jets. Two aspects that significantly affect the collisional energy los...
متن کاملQCD Decoupling at Four Loops s
We present the matching condition for the strong coupling con-tant α (n f) s at a heavy quark threshold to four loops in the modified minimal subtraction scheme. Our results lead to further decrease of the theoretical uncertainty of the evolution of the strong coupling constant through heavy quark thresholds. Using a low energy theorem we furthermore derive the effective coupling of the Higgs b...
متن کاملQcd Collisional Energy Loss in an Increasingly Interacting Quark Gluon Plasma
The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavyion Collider (RHIC) at Brookhaven National Laboratory has provided clear evidence for the formation of strongly interacting dense matter. It has been predicted to occur due to the energy loss of high energy partons that propagate through the quark gluon plasma. In this paper we investigate the dependence o...
متن کاملParton energy loss at strong coupling and the universal bound
The apparent universality of jet quenching observed in heavy ion collisions at RHIC for light and heavy quarks, as well as for quarks and gluons, is very puzzling and calls for a theoretical explanation. Recently it has been proposed that the synchrotron–like radiation at strong coupling gives rise to a universal bound on the energy of a parton escaping from the medium. Since this bound appears...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015