A ug 2 00 2 1 Jet Quenching with Detailed Balance in a Thermal QCD Medium ∗
نویسندگان
چکیده
The effect of detailed balance in induced gluon radiation for an energetic parton propagating inside a quark-gluon plasma is discussed. The stimulated thermal gluon emission reduces while absorption increases the parton's energy. The net contribution results in a reduction of the effective parton energy loss. The relative reduction of the parton energy loss is found to be important for intermediate parton energies and negligible for very high energies. This will increase the energy dependence of the parton energy loss and will affect the shape of suppression of moderately high p T hadron spectra.
منابع مشابه
ar X iv : 0 90 8 . 17 47 v 1 [ he p - ph ] 1 2 A ug 2 00 9 Jet Medium interactions at Quark Matter 09
The suppression of the yield of high transverse momentum pT hadrons in heavy-ion collisions, referred to as “jet-quenching” has now developed into a comprehensive science. Jets are now used as probes of a variety of properties of the dense medium through which they propagate. Major theoretical improvements include jet modification in a 3-D fluid dynamical medium, the first set of in-medium Mont...
متن کاملep - p h / 06 03 25 3 v 1 3 0 M ar 2 00 6 Rapidity - dependence of jet shape broadening and quenching
The jet shape modification due to partonic energy loss in the dense QCD matter is investigated by the help of the special transverse energy-energy correlator in the vicinity of maximum energy deposition of every event. In the accepted scenario with scattering of jet hard partons off comoving medium constituents this correlator is independent of the pseudorapidity position of a jet axis and beco...
متن کاملep - p h / 04 05 12 5 v 2 19 A ug 2 00 4 Matter in extremis : ultrarelativistic nuclear collisions at RHIC ∗
We review the physics of nuclear matter at high energy density and the experimental search for the Quark-Gluon Plasma at the Relativistic Heavy Ion Collider (RHIC). The data obtained in the first three years of the RHIC physics program provide several lines of evidence that a novel state of matter has been created in the most violent, head-on collisions of Au nuclei at √ s = 200 GeV. Jet quench...
متن کاملar X iv : h ep - l at / 0 20 80 75 v 1 3 0 A ug 2 00 2 Screening of hot gluon
We calculate electric and magnetic masses of gluons between T = Tc and 6Tc using lattice QCD (quantum chromodynamics) in the quench approximation. We find that magnetic mass has finite values in this region, and the temperature dependence of the electric mass is consistent with that determined using the hard-thermal-loop perturbation. The hard-thermal-loop resummation improves significantly the...
متن کاملar X iv : h ep - p h / 02 10 01 0 v 1 1 O ct 2 00 2 Jet quenching in heavy ion collisions at LHC 1
We discuss the potential information about highly excited QCD-matter provided by medium-induced partonic energy loss, known as " jet quenching ". In particular, with its large acceptance hadronic and electromagnetic calorimetry, the Compact Muon Solenoid detector at LHC collider is a promising device to study these effects. We present physics simulations of observables such as the jet distribut...
متن کامل