On dissociation of heavy mesons in a hot quark-gluon plasma
arXiv:0811.1058 · doi:10.1016/j.nuclphysa.2008.12.006
Abstract
We compare two mechanisms for the dissociation of heavy mesons in an infinite quark-gluon plasma: dynamic Debye screening and multiple scattering. Using the uncertainty principle inspired by a Schrodinger-like equation, we find that the criterion a_B\simeq1/μ\simeq 1/(α_{eff}^{1/2}T) with α_{eff}\equivα(N_c+{N_f\over2}) is parametrically true both for the dissociation of fast moving heavy mesons with a size a_B due to dynamic Debye screening as well as for mesons at rest in the medium. In contrast, we find that the criterion for the dissociation of heavy mesons due to uncorrelated multiple scattering is parametrically 1/a_B \simeq [γα_{eff}\ln{1/α_{eff}}]^{1/3}T. Therefore, multiple scattering is a more efficient mechanism for the dissociation of heavy mesons in an infinite hot plasma.
arXiv comment23 pages, 2 figures; minor changes, added references, accepted in Nuclear Physics A
References in corpus (8)
- Radiative energy loss of high energy quarks and gluons in a finite volume quark-gluon plasma
- How Much do Heavy Quarks Thermalize in a Heavy Ion Collision?
- Transport coefficients in high temperature gauge theories: (I) Leading-log results
- Parton Saturation at Small x and in Large Nuclei
- An AdS/CFT Calculation of Screening in a Hot Wind
- Holographic melting and related properties of mesons in a quark gluon plasma
- The Energy of a Moving Quark-Antiquark Pair in an N=4 SYM Plasma
- Collisional dissociation of heavy mesons in dense QCD matter
Cited by in corpus (18)
- A light-cone wavefunction approach to open heavy flavor dynamics in QCD matter
- High transverse momentum quarkonium production and dissociation in heavy ion collisions
- Heavy-flavor production and medium properties in high-energy nuclear collisions - What next?
- Quarkonium dissociation in the presence of a small momentum space anisotropy
- Heavy Quarkonium moving in a Quark-Gluon Plasma
- Non-relativistic bound states in a moving thermal bath
- On multiple scatterings of mesons in hot and cold QCD matter
- Quarkonium dissociation by anisotropy
- On thermal corrections to near-threshold annihilation
- Thermal quarkonium physics in the pseudoscalar channel
- On p_T-broadening of high energy partons associated with the LPM effect in a finite-volume QCD medium
- Quarkonia in anisotropic hot QCD medium in a quasi-particle model
- System-size dependence of open-heavy-flavor production in nucleus-nucleus collisions at =200 GeV
- Intermediate distance correlators in hot Yang-Mills theory
- News on hadrons in a hot medium
- On heavy-quarkonia suppression by final-state multiple scatterings in most central Au+Au collisions at RHIC
- Towards a precision calculation of in the Standard Model IV: Estimating the impact of positronium formation
- Light Cone wavefunction approach to open heavy flavor dynamics in the QGP