Results 91 to 100 of about 14,424 (194)

Boosting perturbative QCD stability in quarkonium production

open access: yesJournal of High Energy Physics, 2019
The aim of this paper is to introduce a general way to stabilize the perturbative QCD computations of heavy quarkonium production in the boosted or high-momentum transferring region with tree-level generators only.
Hua-Sheng Shao
doaj   +1 more source

Quarkonium Production at High-Energy Colliders [PDF]

open access: yes, 2001
The theoretical description of heavy quarkonium production at high-energy p-pbar and e-p colliders is reviewed. Predictions based on non-relativistic QCD factorisation are confronted with recent charmonium and bottomonium data from the Tevatron and HERA.
Abe   +141 more
core   +2 more sources

Quarkonium at Finite Temperature [PDF]

open access: yesNuclear Physics A, 2007
Lattice QCD studies on charmonium at finite temperature are presented After a discussion about problems for the Maximum Entropy Method applied to finite temperature lattice QCD, I show several results on charmonium spectral functions. The ``wave function'' of charmonium is also discussed to study the spatial correlation between quark and anti-quark in ...
openaire   +2 more sources

The effect of chemical potential on imaginary potential and entropic force

open access: yesPhysics Letters B, 2017
Imaginary potential and entropic force represent different mechanisms for melting the heavy quarkonium. In this paper, we study the chemical potential effect on these two quantities with respect to a moving quarkonium from the AdS/CTF duality. We observe
Zi-qiang Zhang, De-fu Hou, Gang Chen
doaj   +1 more source

Suppression of Quarkonium Production in Heavy Ion Collisions at RHIC and LHC [PDF]

open access: yes, 2000
A model for the production of quarkonium states in the midrapidity region at RHIC and LHC energy range is presented which explores well understood properties of QCD only. An increase of the quarkonium hadronisation time with the initial energy leads to a
Baier R   +11 more
core   +3 more sources

Quarkonia Disintegration due to time dependence of the $q \bar{q}$ potential in Relativistic Heavy Ion Collisions

open access: yes, 2014
Rapid thermalization in ultra-relativistic heavy-ion collisions leads to fast changing potential between a heavy quark and antiquark from zero temperature potential to the finite temperature one.
Bagchi, Partha, Srivastava, Ajit M.
core   +1 more source

Born-Oppenheimer approximation in EFT and quarkonium hybrids

open access: yesEPJ Web of Conferences, 2017
We report on the results of [1] for the calculations of quarkonium hybrids. We have developed and Effective Field Theory (EFT) for quarkonium hybrids that systematically incorporates an expansion with respect to the adiabatic limit.
Castellà Jaume Tarrús
doaj   +1 more source

Quarkonia Theory: From Open Quantum System to Classical Transport [PDF]

open access: yesEPJ Web of Conferences
This is a theoretical overview of quarkonium production in relativistic heavy ion collisions given for the Hard Probes 2024 conference in Nagasaki.
Yao Xiaojun
doaj   +1 more source

Open Problems in Heavy Quarkonium Physics

open access: yes, 2004
Some recent progress and a personal selection of open problems in heavy quarkonium physics (spectroscopy, decay and production) inspired by the activity of the Quarkonium Working Group are reviewed.Comment: Plenary talk presented at the 6th international
Vairo, Antonio
core   +2 more sources

Heavy Quarkonium Production at LHC through $W$ Boson Decays

open access: yes, 2012
The production of the heavy $(c\bar{c})$-quarkonium, $(c\bar{b})$-quarkonium and $(b\bar{b})$-quarkonium states ($(Q\bar{Q'})$-quarkonium for short), via the $W^+$ semi-inclusive decays, has been systematically studied within the framework of the non ...
/SLAC, /Chongqing U.   +7 more
core   +2 more sources

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