Results 41 to 50 of about 16,758 (234)

Quarkonium formation time in quark-gluon plasma [PDF]

, 2013
The quarkonium formation time in a quark-gluon plasma (QGP) is determined from the space-time correlator of heavy quark vector currents using the quarkonium in-medium mass and wave function obtained from heavy quark potentials extracted from the lattice ...
Ko, Che Ming, Lee, Su Houng, Song, Taesoo   +2 more
core   +3 more sources

Spin Splitting Spectroscopy of Heavy Quark and Antiquarks Systems

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
Phenomenological potentials describe the quarkonium systems like cc¯,bb,¯ and b¯c where they give a good accuracy for the mass spectra. In the present work, we extend one of our previous works in the central case by adding spin‐dependent terms to allow for relativistic corrections.
Hesham Mansour, Ahmed Gamal, M. Abolmahassen, Smarajit Triambak   +3 more
wiley   +1 more source

Schrödinger spectrum generated by the Cornell potential

Open Physics, 2015
The eigenvalues Ednl (a, c) of the d-dimensional Schrödinger equation with the Cornell potential V(r) = −a/r + c r, a, c > 0 are analyzed by means of the envelope method and the asymptotic iteration method (AIM).
Hall Richard L., Saad Nasser
doaj   +1 more source

Heavy Quarkonium Physics from Effective Field Theories [PDF]

, 2006
I review recent progress in heavy quarkonium physics from an effective field theory perspective. In this unifying framework, I discuss advances in perturbative calculations for low-lying quarkonium observables and in lattice calculations for high-lying ...
A. Vairo, Abazov), Abe), Acosta), Acosta), Affolder), AlFiky, Allison, Artuso), Aubert), Aubert), Aubert), Bali, Barbieri, Beneke, Bodwin, Bodwin, Bodwin, Bodwin, Bodwin, Bodwin, Braaten, Braaten, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Brambilla, Buchmüller, Caswell, Choi), Coan), Contreras, Eichten, Eichten, Eidemüller, El-Khadra, Fleming, Fleming, Fleming, Flynn, Gray, Hu, Juge, Khan, Kniehl, Koma, Kou, Lee, Lepage, Lewis, Ma, Mangano, Mathur, Nayak, Nemati), Penin, Penin, Penin, Penin, Pineda, Pineda, Pineda, Pineda, Savage, Tormo, Tormo, Vairo, Vairo, Vairo, Yao), Yaouanc, Zhang   +79 more
core   +2 more sources

Excitation Function of Initial Temperature of Heavy Flavor Quarkonium Emission Source in High Energy Collisions

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
The transverse momentum spectra of J/ψ, ψ(2S), and Y(nS, n = 1, 2, 3) produced in proton‐proton (p + p), proton‐antiproton p+p¯, proton‐lead (p + Pb), gold‐gold (Au + Au), and lead‐lead (Pb + Pb) collisions over a wide energy range are analyzed by the (two‐component) Erlang distribution, the Hagedorn function (the inverse power‐law), and the Tsallis ...
Qi Wang, Fu-Hu Liu, Roelof Bijker
wiley   +1 more source

Quarkonia as probes of initial and final states in small systems with ALICE [PDF]

EPJ Web of Conferences
The multiple parton−parton interactions (MPIs) are an important element to describe the observed collective flow and strangeness enhancement in high multiplicity pp and p−Pb collisions, the so-called small systems.
Choudhury Subikash
doaj   +1 more source

Quarkonium Phenomenology from a Generalised Gauss Law

Universe, 2019
We present an improved analytic parametrisation of the complex in-medium heavy quark potential derived rigorously from the generalised Gauss law. To this end we combine in a self-consistent manner a non-perturbative vacuum potential with a weak-coupling ...
David Lafferty, Alexander Rothkopf
doaj   +1 more source

Quarkonium correlators and spectral functions at zero and finite temperature [PDF]

, 2006
We study quarkonium correlators and spectral functions at zero and finite temperature using the anisotropic Fermilab lattice formulation with anisotropy xi=2 and 4. To control cutoff effects we use several different lattice spacings.
A. Gray, A. Jakovác, A. Mocsy, A. Mócsy, A. Mócsy, A. Velytsky, C. R. Allton, C. R. Allton, C. T. Davies, C. Y. Wong, E. Braaten, E. V. Shuryak, F. Karsch, F. Karsch, F. Karsch, F. Karsch, G. Aarts, G. Röpke, G. P. Lepage, H. Iida, H. R. Fiebig, K. Langfeld, K. Petrov, K. Petrov, K. Sasaki, M. Asakawa, M. Asakawa, M. Asakawa, M. Asakawa, M. Jarrell, M. Le Bellac, M. Okamoto, P. Chen, P. Petreczky, P. Petreczky, P. Petreczky, P. Petreczky, P. Petreczky, R. Sommer, R. K. Bryan, S. Datta, S. Datta, S. Digal, S. Digal, S. Necco, T. Blum, T. Hashimoto, T. Matsui, T. Umeda, T. Yamazaki, T. R. Klassen, W. M. Alberico, X. Liao, Y. Nakahara   +53 more
core   +2 more sources

Quarkonium Production in the QGP

Universe, 2019
We report on recent theory progress in understanding the production of heavy quarkonium in heavy-ion collisions based on the in-medium heavy-quark potential extracted from lattice QCD simulations. On the one hand, the proper in-medium potential allows us
Alexander Rothkopf
doaj   +1 more source

Breakdown of QCD factorization for P-wave quarkonium production at low transverse momentum

Physics Letters B, 2014
Quarkonium production at low transverse momentum in hadron collisions can be used to extract Transverse-Momentum-Dependent (TMD) gluon distribution functions, if TMD factorization holds there.
J.P. Ma, J.X. Wang, S. Zhao
doaj   +1 more source