Results 61 to 70 of about 4,574 (183)
Understanding Heavy Quarkonium Systems in Perturbative QCD [PDF]
arXiv, 2002 We review the recent theoretical progress in heavy quarkonium spectroscopy within the boundstate theory based on perturbative QCD. New microscopic pictures of the heavy quarkonium systems are obtained.
arxiv
Quarkonium production in heavy ion collisions: coupled Boltzmann transport equations [PDF]
, 2018 By coupling the Boltzmann transport equations of both quarkonium and open heavy quarks, we investigate their dynamical evolution inside the quark-gluon plasma and study quarkonium production in heavy ion collisions. The Boltzmann transport equation of quarkonium is derived from the open quantum system formalism and effective field theory of QCD by ...
arxiv +1 more source
Sequential Quarkonium Suppression
, 2001 We use recent lattice data on the heavy quark potential in order to determine the dissociation temperatures of different quarkonium states in hot strongly interacting matter. Our analysis shows in particular that certain quarkonium states dissociate below the deconfinement point.
Digal, S., Petreczky, P., Satz, Helmut
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Recent results on quarkonium(-like) states at Belle [PDF]
arXiv, 2014 Recent results on quarkonium and quarkonuim-like states at Belle are presented.
arxiv
Scaling Properties of $S$-wave Level Density for Heavy Quarkonium from QCD Sum Rules [PDF]
arXiv, 1994 In the framework of a specific scheme of the QCD sum rules for $S$-wave levels of the heavy quarkonium, one derives an expression, relating the energetic density of quarkonium states and universal characteristics in the heavy quarkonium physics, such as the difference between the masses of a heavy quark $Q$ and meson $(Q\bar q)$ and the number of heavy
arxiv
Scaling Relations in Phenomenology of QCD Sum Rules for Heavy Quarkonium [PDF]
Int.J.Mod.Phys. A11 (1996) 3689-3710, 1995 In the framework of a specific scheme of the QCD sum rules for $S$-wave levels of the heavy quarkonium, one derives expressions, relating the leptonic constants, the energetic density of quarkonium states and universal characteristics in the heavy quarkonium physics, such as the difference between the masses of heavy quark $Q$ and meson $(Q\bar q)$ and
arxiv
Physics Letters B, 1977 Motivated by the apparent equal spacing M (ϒ′) - M (ϒ) = M ψi) - M (ψ), we show that the potential for which quarkonium level spacings are independent of quark mass, in the nonrelativistic limit, is V ( r ) = C In ( r / r 0 ). We enumerate consequences of the logarithmic potential and present an alternative interpretation of the data.
Chris Quigg, Jonathan L. Rosner
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Quarkonium correlators at finite temperature and potential models [PDF]
PoSLAT2007:216,2007, 2007 We discuss the calculations of quarkonium spectral functions in potential models and their implications for the interpretation of the lattice data on quarkonium correlators. In particular, we find that melting of different quarkonium states does not lead to significant change in the Euclidean time correlators.
arxiv
Nuclear Physics A, 2009 v2: removed line numbering, updated refs; 4 pages, 1 figure; to appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville ...
Adrian Dumitru, Adrian Dumitru
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Quarkonium Production at STAR [PDF]
Proceedings of XXIst International Europhysics Conference on High Energy Physics — PoS(EPS-HEP2011), 2012 We report the results on heavy quarkonium production in p+p and Au+Au collisions at midrapidity via the dielectron decay channel at sqrt(s_NN) = 200 GeV from the STAR experiment at RHIC. Results on the J/psi p_T spectra in p+p collisions are presented for 2 < p_T < 10 GeV/c. The B-meson feed-down contribution to the inclusive J/psi yield has been
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