Jul 16 – 22, 2009
Kraków, Poland
Europe/Warsaw timezone

Inelastic J/psi production at HERA

Jul 17, 2009, 4:35 PM
25m
Exhibition room B (Kraków, Poland)

Exhibition room B

Kraków, Poland

The Auditorium Maximum of the Jagiellonian University 33 Krupnicza Street 31-123 Kraków
QCD in hadronic physics VI. QCD in Hadronic Physics

Speaker

Riccardo Brugnera (Padova University and INFN)

Description

Inelastic Photo-production of J/Psi mesons is studied in ep-scattering at HERA. The J/psi decay angular distributions have been measured with the ZEUS detector, using an integrated luminosity of 468 pb^-1. The range in photon-proton centre-of-mass energy, W, was 50<W<180 GeV. The polar and azimuthal angles of the mu+ were measured in the J/psi rest frame and compared to theoretical predictions at leading and next-to-leading order in QCD. Single differential and double differential cross sections are measured with the H1 detector, using the data taken in the years 2006 and 2007 and corresponding to an integrated luminosity of approximately 166 pb^-1. Precision and purity are increased compared to previous analyses. The results are compared to theoretical predictions.

Primary authors

Monica Turcato ZEUS Collaboration (Hamburg University) Riccardo Brugnera (Padova University and INFN)

Presentation materials