Author: John Graeme WilliamsonPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Neutral Pion Production and Single Photon Asymmetries in Deep Inelastic Muon Scattering
Author: John Graeme WilliamsonNeutral Pion and Eta Production in Deep Inelastic Muon Scattering at 480 Gev
Author: Erik J. RambergPublisher:
ISBN:
Category : Mesons
Languages : en
Pages : 338
Book Description
Measurement of Single and Double Spin Asymmetries in Semi-inclusive Deep-inelastic Scattering on Proton and Deuteron
Author: Suman Bandhu KoiralaPublisher:
ISBN:
Category : Deuterons
Languages : en
Pages : 293
Book Description
Nuclear Science Abstracts
Author: Final-State Interactions and Single-Spin Asymmetries in Semi-inclusive Deep Inelastic Scattering
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Recent measurements from the HERMES and SMC collaborations show a remarkably large azimuthal single-spin asymmetries A{sub UL} and A{sub UT} of the proton in semi-inclusive pion leptoproduction [gamma]*(q)p → [pi]X. We show that final-state interactions from gluon exchange between the outgoing quark and the target spectator system leads to single-spin asymmetries in deep inelastic lepton-proton scattering at leading twist in perturbative QCD; i.e., the rescattering corrections are not power-law suppressed at large photon virtuality q2 at fixed x{sub bj}. The existence of such single-spin asymmetries requires a phase difference between two amplitudes coupling the proton target with J{sup z}{sub p} = ±1/2 to the same final-state, the same amplitudes which are necessary to produce a nonzero proton anomalous magnetic moment. We show that the exchange of gauge particles between the outgoing quark and the proton spectators produces a Coulomb-like complex phase which depends on the angular momentum L{sup z} of the proton's constituents and thus is distinct for different proton spin amplitudes. The single-spin asymmetry which arises from such final-state interactions does not factorize into a product of structure function and fragmentation function, and it is not related to the transversity distribution [delta]q(x;Q) which correlates transversely polarized quarks with the spin of the transversely polarized target nucleon.
A Measurement of Semi Inclusive Deep Inelastic Scattering Pion Asymmetries to Test Independent Fragmentation
Author: Tamar DidberidzeERDA Energy Research Abstracts
Author: United States. Energy Research and Development AdministrationPublisher:
ISBN:
Category : Medicine
Languages : en
Pages : 776
Book Description
ERDA Energy Research Abstracts
Author: United States. Energy Research and Development Administration. Technical Information CenterPublisher:
ISBN:
Category : Force and energy
Languages : en
Pages : 1680
Book Description
Author: 
Author: