Electroproduction of Hadrons from Deuterium
نویسندگان
چکیده
The inclusive electroproduction of hadrons is measured from hydrogen and deuterium targets. The exchanged virtual photons are in the kinematic range -0.25 > cl2 > -3.00 GeV2, 12 <s < 30 GeV2. Hadrons which travel in the direction of the virtual photon in the virtual photon-nucleon center-of-mass system are detected. A striking difference from photoproduction is observed in the excess of positive relative to negative hadrons from both proton and neutron targets. (Submitted to Phys. Rev. Letters. ) *Work supported by the U. S. Atomic Energy Commission. TPresent address: Rutherford High Energy Laboratory, Chilton, Didcot, Berkshire, England.
منابع مشابه
Leading-order determination of the gluon polarization from high-pT hadron electroproduction
Longitudinal double-spin asymmetries of charged hadrons with high transverse momentum pT have been measured in electroproduction using the Hermes detector at Hera. Processes involving gluons in the nucleon have been enhanced relative to others by selecting hadrons with pT typically above 1GeV. In this kinematic domain the gluon polarization has been extracted in leading order making use of the ...
متن کاملIU/NTC 96-04 ADP-96-14/T217 Probing Charge-Symmetry-Violating Quark Distributions in Semi-Inclusive Leptoproduction of Hadrons
Recent experiments by the HERMES group at HERA are measuring semiinclusive electroproduction of pions from deuterium. We point out that by comparing the production of π and π− from an isoscalar target, it is possible, in principle, to measure charge symmetry violation in the valence quark distributions of the nucleons. It is also possible in the same experiments to obtain an independent measure...
متن کاملProbing charge-symmetry-violating quark distributions in semi-inclusive leptoproduction of hadrons.
Recent experiments by the HERMES group at HERA are measuring semiinclusive electroproduction of pions from deuterium. We point out that by comparing the production of π and π from an isoscalar target, it is possible, in principle, to measure charge symmetry violation in the valence quark distributions of the nucleons. It is also possible in the same experiments to obtain an independent measurem...
متن کاملOf Inclusive Electroproduction of Hadrons ”
Mueller's Regge analysis is combined with the generalized scaling laws of the parton model to determine the Q2-dependence of inclusive electroproduction of hadrons.
متن کاملInclusive electroproduction of light hadrons with large pT at next-to-leading order
We review recent results on the inclusive electroproduction of light hadrons at next-toleading order in the parton model of quantum chromodynamics implemented with fragmentation functions and present updated predictions for HERA experiments based on the new AKK set.
متن کامل