Prospects for spin physics in semi - inclusive processes ∗
نویسنده
چکیده
I discuss inclusive and semi-inclusive lepton-hadron scattering emphasizing the importance of polarization in order to study various single or double spin asymmetries and the importance of particle identification and angular resolution in the dectection of final state particles to study azimuthal asymmetries. The observables obtained in this way enable a detailed study of quark and gluon correlations in hadrons.
منابع مشابه
Single Transverse Spin Asymmetries for Semi-inclusive Pion Production in DIS
We present a phenomenological approach to the description of single transverse spin asymmetries (STSA) in inclusive hadron production. It generalizes the pQCD formalism for high energies and large pT inclusive hadron production processes, AB → C X, by incorporating quark intrinsic motion in the spin dependent quark distribution and fragmentation functions. We concentrate here on spin and k⊥ eff...
متن کاملAnalyzing the nucleon spin in weak interaction processes at HERA energies
We investigate the possibility to measure the spin content carried by the different quark flavors in a nucleon by means of polarized deep inelastic scattering with W exchange at HERA. Such measurements require a polarized proton beam. The expected inclusive and semi inclusive asymmetries are sizable and for realistic luminosities the expected statistical accuracies are good enough to extract ne...
متن کاملThe JLab Upgrade - Studies of the Nucleon with CLAS 12 . Selected topics
An overview is presented on the program to study the nucleon structure at the 12 GeV JLab upgrade using the CLAS12 detector. The focus is on deeply virtual exclusive processes to access the generalized parton distributions, semi-inclusive processes to study transverse momentum dependent distribution functions and inclusive spin structure functions, and resonance transition form factors at high ...
متن کاملSpin Physics with COMPASS
COMPASS is a fixed target experiment at CERN studying the spin structure of the nucleon via deep inelastic muon-nucleon scattering. Hadron spectroscopy and structure are investigated using hadronic beams. The main goal of the muon program is the determination of the gluon helicity contribution, ∆G/G, to the nucleon spin. Experimentally this quantity is accessible via the measurement of double s...
متن کاملDouble Spin Asymmetries for Large-pT Hadron Production in Semi-Inclusive DIS
We study the twist-2 double-spin asymmetries for the 2-jets and large-pT hadron (π, Λ etc) production in semi-inclusive deep inelastic scattering to O(αs) in perturbative QCD. After deriving the complete set of the polarized cross section which is differential with respect to the transverse momentum, we discuss characteristic features of the azymuthal spin asymmetries, using existing parton den...
متن کامل