Results 101 to 110 of about 19,862 (236)
Continuum Limit of Scalar Masses and Mixing Energies [PDF]
We evaluate the continuum limit of the valence approximation to the mass of scalar quarkonium and to the scalar quarkonium-glueball mixing energy for a range of different quark masses.
Amsler+12 more
core +4 more sources
Quarkonium Production in PHENIX [PDF]
9 pages, 7 figures, Proceedings for Hard Probes ...
openaire +3 more sources
Excited Heavy Quarkonium Production via Z^0 Decays at a High Luminosity Collider
We present a systematic study of the production of the heavy quarkonium, i.e., $|(c\bar{c})[n] \rangle$ , $|(b\bar{c})[n] \rangle$ (or $|(c\bar{b})[n] \rangle$), and $|(b\bar{b})[n] \rangle$ quarkonium [$|(Q\bar{Q'})[n]\rangle$ quarkonium for short ...
Deng, Ya+4 more
core +1 more source
Quarkonium polarization as a test of non-relativistic effective theory [PDF]
I compare current approaches to quarkonium production with regard to what they tell us about quarkonium polarization. Predictions for $J/\psi$ polarization in hadron-hadron and photon-hadron collisions are summarized.Comment: 6 pages, LaTeX, 3 figures ...
Beneke, M.
core +1 more source
Nucleon-Quarkonium Elastic Scattering and the Gluon Contribution to Nucleon Spin
It is shown that the amplitude for the scattering of a heavy quarkonium system from a nucleon near threshold is completely determined by the fraction of angular momentum, as well as linear momentum, carried by gluons in the nucleon.
A. B. Kaidalov+11 more
core +1 more source
Quarkonium Mass Splitting Revisited: Effects of Closed Mesonic Channels [PDF]
Modifications of the mass spectrum the quarkonium induced by its virtual dissociation into a pair of heavy mesons is considered. Coupling between quark and mesonic channels results in noticeable corrections to spin-dependent mass splitting. In particular,
Geiger, Godfrey, M. Shmatikov
core +2 more sources
Towards an automated tool to evaluate the impact of the nuclear modification of the gluon density on quarkonium, D and B meson production in proton–nucleus collisions [PDF]
We propose a simple and model-independent procedure to account for the impact of the nuclear modification of the gluon density as encoded in nuclear collinear PDF sets on two-to-two partonic hard processes in proton–nucleus collisions.
J. Lansberg, H. Shao
semanticscholar +1 more source
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]
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
openaire +3 more sources
The dynamics of quarkonium production [PDF]
Comment: Talk given at the 3rd International Conference on Hyperons, Charm and Beauty Hadrons, Genova, Italy, June 1998.
openaire +4 more sources