Results 61 to 70 of about 21,957 (297)

Masses and Thermodynamic Properties of a Quarkonium System

Canadian journal of physics (Print), 2021
Hulthen plus Hellmann potentials are adopted as the quark-antiquark interaction potential for studying the thermodynamic properties and the mass spectra of heavy mesons.
E. Inyang, E. Inyang, I. Akpan, J. Ntibi, Eddy S. William   +4 more
semanticscholar   +1 more source

Fragmentation functions for a quark into a spin-singlet quarkonium: Different flavor case [PDF]

Physical Review D, 2021
In the paper, we calculate the fragmentation functions for a quark to fragment into a spin-singlet quarkonium, where the flavor of the initial quark is different from that of the constituent quark in the quarkonium.
Xu-Chang Zheng, Zeqi Zhang, Xing-Gang Wu
semanticscholar   +1 more source

Two-loop Correction to the Leptonic Decay of Quarkonium [PDF]

, 1997
Applying asymptotic expansions at threshold, we compute the two-loop QCD correction to the short-distance coefficient that governs the leptonic decay $\psi\to l^+ l^-$ of a S-wave quarkonium state and discuss its impact on the relation between the ...
Beneke, M., Signer, A., Smirnov, V. A.
core   +3 more sources

Quarkonium production in Pb-Pb collisions at √SNN = 5.02 TeV with ALICE

EPJ Web of Conferences, 2018
Ultra-relativistic heavy-ion collisions at the Large Hadron Collider provide a unique opportunity to study the properties of matter at extreme energy densities where a phase transition from the hadronic matter to a deconfined medium of quarks and gluons,
Francisco Audrey
doaj   +1 more source

Quarkonium Production At $Z^0$ and in $Υ(1S)$ Decay [PDF]

Int.J.Mod.Phys.A12:3931-3940,1997, 1996
The conventional color-singlet model was challenged by the recent data on quarkonium production. Discrepancies in production rates were observed at the Tevatron, at LEP, and in fixed-target experiments. The newly advocated color-octet mechanism provides a plausible solution to the anomalous quarkonium production observed at the Tevatron.
arxiv   +1 more source

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

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

Quarkonium production in high energy proton-proton and proton-nucleus collisions [PDF]

, 2010
We present a brief overview of the most relevant current issues related to quarkonium production in high energy proton-proton and proton-nucleus collisions along with some perspectives.
Aaltonen, Abachi, Abazov, Abazov, Abazov, Abe, Abe, Abe, Abelev, Abelev, Abelev, Abreu, Abreu, Abt, Abulencia, Acosta, Acosta, Adams, Adare, Adare, Adare, Adare, Adare, Adare, Adcox, Adler, Affolder, Affolder, Aggarwal, Aglietti, Albajar, Albajar, Alde, Alessandro, Alessandro, Alwall, Andersson, Arleo, Armesto, Armesto, Armesto, Arnaldi, Arnaldi, Arnaldi, Arsene, Artoisenet, Artoisenet, Artoisenet, Artoisenet, Atomssa, B. Kopeliovich, Back, Badier, Badier, Baier, Baier, Baranov, Baranov, Beneke, Beneke, Berger, Bodwin, Bonciani, Boreskov, Braaten, Brambilla, Braun-Munzinger, Brodsky, Brodsky, Brodsky, Burnett, Butenschoen, Butenschoen, C. Lourenço, Cacciari, Cacciari, Cacciari, Campbell, Chang, Chang, Chung, Coll, Corcella, Corcella, Czakon, Czakon, Czakon, da Silva, de Florian, DeVries, Digal, Digal, Dokshitzer, Dokshitzer, Dokshitzer, Dokshitzer, Dolejsi, E. Scomparin, E.G. Ferreiro, Eskola, Eskola, Eskola, Eskola, F. Fleuret, Faccioli, Faccioli, Faccioli, Faccioli, Ferreiro, Ferreiro, Frawley, Frixione, Fujii, G. Corcella, G. Martinez, Garishvili, Gavin, Gavin, Glauber, Golec-Biernat, Gong, Gong, Gong, Gong, Gossiaux, Grandchamp, Gribov, Gunion, Gupta, H. Satz, Haberzettl, Hirai, Hüfner, Hüfner, J.P. Lansberg, J.X. Wang, Johnson, Jungst, Karmanov, Karsch, Karsch, Karsch, Kharzeev, Klasen, Kniehl, Kopeliovich, Kopeliovich, Kopeliovich, Kopeliovich, Kopeliovich, Kraan, Kramer, Kramer, Lansberg, Lansberg, Lansberg, Lansberg, Lansberg, Lansberg, Lansberg, Leibovich, Leitch, Leitch, Li, Lokhtin, Lourenco, Low, Ma, Mangano, Matsui, Nason, Nayak, O. Teryaev, Pakhlov, R. Vogt, Renk, Schenke, Schienbein, Scomparin, Sjöstrand, Stavreva, Strikman, T. Ullrich, Thews, V. Kartvelishvili, V. Papadimitriou, Vogt, Vogt, Vogt, Webber, Z. Conesa del Valle, Zapp, Zapp, Zhang   +193 more
core   +4 more sources

Measurements of quarkonia production [PDF]

EPJ Web of Conferences
Quarkonium production in high-energy hadronic collisions is a useful tool to investigate fundamental aspects of Quantum Chromodynamics, from the proton and nucleus structure to deconfinement and the properties of the Quark Gluon Plasma (QGP).
Massacrier Laure
doaj   +1 more source