Polarised Drell-Yan measurements at COMPASS

Polarized Drell-Yan at COMPASS-II: Transverse Spin Physics Program

Successful realization of polarized Drell-Yan physics program is one of the main goals of the second stage of the COMPASS experiment. Drell-Yan measurements with high energy (190 GeV/c) pion beam and transversely polarized NH3 target have been initiated by a pilot-run in the October 2014 and will be followed by 140 days of data taking in 2015. In the past twelve years COMPASS experiment perform...

Drell{Yan Dileptons at RHIC

The study if the production of dilepton pairs is an important component of the research to be accomplished at the Relativistic Heavy Ion Collider (RHIC) due to each relevance to Quark-Gluon Plasma search and the investigation of hard QCD processes. We present an event generator program that produces Drell-Yan dilepton pairs for symmetric heavy ion collisions. It computes NLO cross sections incl...

Drell–yan Asymmetries at Hera- N 1

Structure functions measured in deep inelastic lepton–nucleon scattering probe a particular combination of quark distributions in the nucleon. The mere knowledge of these structure functions is therefore insufficient for a distinction between valence and sea quarks and for a further decomposition of the light quark sea into different flavours. These are only possible if additional information f...

The Drell-Yan

Polarized Drell-Yan Process

The results of a recent calculation of the QCD corrections to the longitudinally polarized Drell-Yan process are summarized. In addition to the parity conserving double spin asymmetry which is already accessible in the Drell-Yan production of lepton pairs at fixed target energies, we consider parity violating single spin asymmetries appearing only in the production of massive vector bosons at p...