Results 111 to 120 of about 19,862 (236)

Boosting perturbative QCD stability in quarkonium production

, 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.
Shao, Hua-Sheng
core   +1 more source

Inclusive double-quarkonium production at the Large Hadron Collider

, 2011
Based on the nonrelativistic QCD (NRQCD) factorization formalism, we investigate inclusive productions of two spin-triplet S-wave quarkonia pp->2J/psi+X, 2Upsilon+X, and J/psi+Upsilon+X at the CERN Large Hadron Collider.
A Abulencia, AA Affolder, AE Bondar, B Gong, B Gong, B Gong, B Gong, B Gong, C Amsler, C-F Qiao, C-F Qiao, C-H Chang, C-H Chang, Chaehyun Yu, D Kang, E Braaten, E Braaten, E Braaten, E Braaten, E Braaten, E Braaten, EL Berger, F Halzen, G Altarelli, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, GT Bodwin, H Fritzsch, HS Chung, HS Chung, J Lee, J Pumplin, JC Collins, JM Campbell, JP Ma, Jungil Lee, K Abe, K Hagiwara, K-Y Liu, M Butenschoen, M Gluck, M Krämer, MB Einhorn, P Artoisenet, P Artoisenet, P Artoisenet, P Pakhlov, P. Ko, R Baier, R Li, SD Ellis, SJ Brodsky, VD Barger, VD Barger, VN Gribov, VV Braguta, Y-J Zhang, Y-J Zhang, Y-Q Ma, YL Dokshitzer, Z-G He   +71 more
core   +1 more source

NRQCD: Fundamentals and Applications to Quarkonium Decay and Production

, 2005
I discuss NRQCD and, in particular, the NRQCD factorization formalism for quarkonium production and decay. I also summarize the current status of the comparison between the predictions of NRQCD factorization and experimental measurements.Comment: 8 pages,
Bodwin, Geoffrey T.
core   +2 more sources

Quarkonium Level Spacings

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
openaire   +2 more sources

Machine Learning Approach to Analyze the Heavy Quark Diffusion Coefficient in Relativistic Heavy Ion Collisions. [PDF]

Entropy (Basel), 2023
Guo R, Li Y, Chen B.
europepmc   +1 more source

Polarized Heavy Quarkonium Production in the Color Evaporation Model

, 2017
We explore polarized heavy quarkonium production using the color evaporation model at leading order. We present the polarized to total yield ratio as a function of center of mass energy and rapidity in $p+p$ collisions.
Cheung, Vincent, Vogt, Ramona
core   +1 more source

Heavy Quarkonium Hybrids [PDF]

Nuclear and Particle Physics Proceedings, 2018
We report on a recent investigation on heavy quarkonium hybrids that goes beyond the usual Born-Oppenheimer approximation by including not only the mixing between nearby hybrid states but also the mixing with quarkonium states. We use a systematic effective field theory framework based on NRQCD together with lattice QCD inputs.
openaire   +3 more sources

Perturbative QCD analysis of near threshold heavy quarkonium photoproduction at large momentum transfer [PDF]

Physics Letters B, 2021
P. Sun, X. Tong, F. Yuan
semanticscholar   +1 more source

Overview of the QCD phase diagram: Recent progress from the lattice. [PDF]

Eur Phys J A Hadron Nucl, 2021
Guenther JN.
europepmc   +1 more source

NRQCD Factorization and Quarkonium Production at Hadron-Hadron and ep Colliders

, 2010
I review the NRQCD factorization approach for quarkonium production and compare its predictions with measurements in hadron-hadron and ep collisions.Comment: 6 pages, contribution to the proceedings of Charm 2010, IHEP, Beijing, October 21-24 ...
Adloff C., Chekanov S.
core   +1 more source