Izvorni znanstveni članak
Diffraction and vector meson production at HERA
Mikhail Kapishin (for the H1 and ZEUS Collaborations)
; Joint Institute for Nuclear Research, Dubna, Russia
Sažetak
Results of new measurements of diffractive cross sections in deep-inelastic scattering (DIS) and photo-production at HERA are presented. The cross sections of dijet and open charm production are compared with next-to-leading order (NLO) QCD predictions based on parton distribution functions obtained from diffractive inclusive DIS data. A combined NLO QCD fit to the inclusive and dijet DIS data is performed to determine diffractive quark singlet and gluon densities with a better precision. Recent measurements of elastic vector meson production and deeply virtual Compton scattering at HERA are also reviewed.
Ključne riječi
hard diffraction; QCD collinear factorization; diffractive parton distribution functions; diffractive dijet; diffractive charm; elastic vector meson production; deeply virtual Compton scattering
Hrčak ID:
304783
URI
Datum izdavanja:
2.3.2008.
Posjeta: 102 *