$J/\psi$-photoproduction and the gluon structure of the nucleon

D. Kharzeev; H. Satz; A. Syamtomov; G. Zinovjev

doi:doi:10.1007/s100520050039

EPJ

a
b
c
d
e
ap
st
h
plus
ds
pv
ti
qt
am
n

2023 Impact factor 4.2

Particles and Fields

Eur. Phys. J. C 9, 459-462
DOI 10.1007/s100529900047

$J/\psi$ -photoproduction and the gluon structure of the nucleon

D. Kharzeev¹ - H. Satz² - A. Syamtomov³ - G. Zinovjev^2,3

¹ Riken/BNL Institute, Brookhaven National Laboratory, Upton, NY 11973, USA
² Fakultät für Physik, Universität Bielefeld, D-33501 Bielefeld, Germany
³ Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, UA-252143 Kiev, Ukraine

Received: 3 March 1999 / Published online: 28 May 1999

Abstract
Using short distance QCD methods based on the operator product expansion, we calculate the $J/\psi$ photoproduction cross section in terms of the gluon distribution function of the nucleon. Comparing the result with data, we show that experimental behaviour of the cross section correctly reflects the x-dependence of the gluon distribution obtained from deep inelastic scattering.

Conference announcements

Physics Days 2025
March 26-28, 2025
Oulu, Finland

Quark Matter 2025
April 6-12, 2025
Goethe University Frankfurt, Germany

Dynamics of Electrons in Atomic and Molecular Nanoclusters
May 21-27, 2025
Erice, Sicily, Italy

Belgian Physical Society Meeting
May 28, 2025
Louvain-la-Neuve, Belgium

International Conference on Phenomena in Ionized Gases
June 20-27, 2025
Aix-en-Provence, France

15th European Conference on Atoms Molecules and Photons (ECAMP)
June 30 to July 4, 2025
Innsbruck, Austria

111th Italian National Society Congress
September 22-26, 2025
Palermo, Italy