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Titolo:
Single-spin asymmetry in deeply virtual Compton scattering: Fragmentation region of polarized lepton - art. no. 094010
Autore:
Akushevich, I; Kuraev, EA; Shaikhatdenov, BG;
Indirizzi:
N Carolina Cent Univ, Durham, NC 27707 USA N Carolina Cent Univ Durham NCUSA 27707 Cent Univ, Durham, NC 27707 USA TJNAF, Newport News, VA 23606 USA TJNAF Newport News VA USA 23606TJNAF, Newport News, VA 23606 USA Joint Inst Nucl Res, Dubna 141980, Russia Joint Inst Nucl Res Dubna Russia 141980 t Nucl Res, Dubna 141980, Russia
Titolo Testata:
PHYSICAL REVIEW D
fascicolo: 9, volume: 6409, anno: 2001,
pagine: 4010 -
SICI:
0556-2821(20011101)6409:9<4010:SAIDVC>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
PARTON DISTRIBUTIONS; VECTOR-MESONS; NUCLEON; ELECTROPRODUCTION; FACTORIZATION; PHOTONS; HERA; QCD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Kuraev, EA N Carolina Cent Univ, Durham, NC 27707 USA N Carolina Cent Univ Durham NC USA 27707 Durham, NC 27707 USA
Citazione:
I. Akushevich et al., "Single-spin asymmetry in deeply virtual Compton scattering: Fragmentation region of polarized lepton - art. no. 094010", PHYS REV D, 6409(9), 2001, pp. 4010

Abstract

For the kinematical region when a hard photon is emitted predominantly close to the direction of motion of a longitudinally polarized initial electron and relatively small momentum is transferred to a proton we calculate theazimuthal asymmetry of photon emission. It arises from the interference ofthe Bethe-Heitler amplitude and amplitudes described by a heavy photon impact factor. Azimuthal asymmetry does not decrease in the limit of infinite c.m.s. energy. The lowest order expression for the impact factor of a heavyphoton is presented.

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Documento generato il 08/04/20 alle ore 11:33:21