Results 121 to 130 of about 626 (163)

Measurement of the relative prompt production rate of χc2 and χc1 in pp collisions at [Formula: see text]. [PDF]

open access: yesEur Phys J C Part Fields, 2012
CMS Collaboration   +2200 more
europepmc   +1 more source

Suppression and azimuthal anisotropy of prompt and nonprompt [Formula: see text] production in PbPb collisions at [Formula: see text][Formula: see text]. [PDF]

open access: yesEur Phys J C Part Fields, 2017
Khachatryan V   +2273 more
europepmc   +1 more source

Measurement of the prompt J/[Formula: see text] pair production cross-section in pp collisions at [Formula: see text] TeV with the ATLAS detector. [PDF]

open access: yesEur Phys J C Part Fields, 2017
Aaboud M   +2856 more
europepmc   +1 more source

Review of lattice results concerning low-energy particle physics. [PDF]

open access: yesEur Phys J C Part Fields, 2014
FLAG Working Group   +28 more
europepmc   +1 more source

Quarkonium suppression [PDF]

open access: yesPramana - Journal of Physics, 2003
Invited plenary talk presented on 4th International Conference on Physics and Astrophysics of Quark Gluon Plasma (ICPAQGP-2001), November 26-30, 2001, Jaipur; 12 pp, LaTeX, uses pramana ...
P Petreczky
exaly   +3 more sources
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Quarkonium annihilation rates

Physical Review D, 1988
Recent measurements of ratios of quarkonium annihilation rates are used to evaluate the strong fine-structure constant ${\ensuremath{\alpha}}_{s}$. Expressions are presented for QCD radiative corrections with ${\ensuremath{\alpha}}_{s}$ referred to the quark-mass scale.
, Kwong   +3 more
openaire   +2 more sources

Nuclear-bound quarkonium

Physical Review Letters, 1990
We show that the QCD van der Waals interaction due to multiple gluon exchange provides a new kind of attractive nuclear force capable of binding heavy quarkonia to nuclei. The parameters of the potential are estimated by identifying multigluon exchange with the Pomeron contributions to elastic meson-nucleon scattering.
, Brodsky, , Schmidt, , de Téramond GF
openaire   +2 more sources

Relativistic quarkonium dynamics

Physical Review D, 1986
We present, in the framework of relativistic quantum mechanics of two interacting particles, a general model for quarkonium systems satisfying the following four requirements: confinement, spontaneous breakdown of chiral symmetry, soft explicit chiral-symmetry breaking, short-distance interactions of the vector type.
openaire   +2 more sources

Hyperfine splitting of quarkonium

Physical Review D, 1985
Using a QCD-motivated model we show that (M( /sup 3/S/sub 1/))/sup 2/-(M( /sup 1/S/sub 0/ ))/sup 2/ is nearly constant for all quarkonium states. We find that the acceptable range of the QCD scale parameter to explain the weak quark-mass dependence of (M( /sup 3/S/sub 1/))/sup 2/-(M( /sup 1/S/sub 0/ ))/sup 2/ is ..lambda.. = 140 +- 60 MeV.
, Igi, , Ono
openaire   +2 more sources

Mixtures of quarkonium and gluonium

Physical Review D, 1985
We study the 2\ensuremath{\gamma} decays of the light pseudoscalar mesons in a model that allows the isoscalar states to have a significant gluonium component, and show that the rates are in good agreement with experiment. The amount of radial mixing in \ensuremath{\eta},\ensuremath{\eta}' states determines these decays completely.
, Frank, , O'Donnell
openaire   +2 more sources

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