Low-mass dilepton production through transport process in quark-gluon plasma

Details Low-mass dilepton production through transport process in quark-gluon plasma Low-mass dilepton production through transport process in quark-gluon plasma

2011-07-19

arxiv.org/abs/1107.3612v1

Physics

Nuclear Physics

Nuclear Theory

26 pages, 16 figures

Scientific paper

We attempt to understand the low-mass dielectron enhancement observed by PHENIX Collaboration at Relativistic Heavy Ion Collider (RHIC) by transport peak in the spectral function. On the basis of the second-order formalism of relativistic dissipative hydrodynamics, we parameterize the spectral function in low-frequency and long-wavelength region by two transport coefficients, electric diffusion coefficient $D$ and relaxation time $\tau_{\rm J}$, and compared our theoretical dielectron spectra with the experimental data. We study spectrum of dielectrons produced in relativistic heavy ion collisions by using the profile of matter evolution under full (3+1)-dimensional hydrodynamics. We find that the experimental data require the diffusion coefficient to be $D\geq 2/T$, with $T$ being temperature. Our analysis shows that dielectrons emitted through transport process mainly come from high-temperature QGP phase.

Affiliated with

Also associated with

No associations

Rating

Low-mass dilepton production through transport process in quark-gluon plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Low-mass dilepton production through transport process in quark-gluon plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-mass dilepton production through transport process in quark-gluon plasma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-513434