Pith. sign in

REVIEW

Measurement of azimuthal asymmetries associated with deeply virtual Compton scattering on a longitudinally polarized deuterium target

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1008.3996 v2 pith:V35X4O4V submitted 2010-08-24 hep-ex

The HERMES Collaboration , A. Airapetian , N. Akopov , Z. Akopov , E.C. Aschenauer , W. Augustyniak , R. Avakian , A. Avetissian
show 139 more authors
E. Avetisyan S. Belostotski N. Bianchi H.P. Blok A. Borissov J. Bowles I. Brodski V. Bryzgalov J. Burns M. Capiluppi G.P. Capitani E. Cisbani G. Ciullo M. Contalbrigo P.F. Dalpiaz W. Deconinck R. De Leo L. De Nardo E. De Sanctis M. Diefenthaler P. Di Nezza M. Dueren M. Ehrenfried G. Elbakian F. Ellinghaus A. Fantoni L. Felawka S. Frullani D. Gabbert G. Gapienko V. Gapienko F. Garibaldi G. Gavrilov V. Gharibyan F. Giordano S. Gliske M. Golembiovskaya C. Hadjidakis M. Hartig D. Hasch G. Hill A. Hillenbrand M. Hoek Y. Holler I. Hristova Y. Imazu A. Ivanilov H.E. Jackson A. Jgoun H.S. Jo S. Joosten R. Kaiser G. Karyan T. Keri E. Kinney A. Kisselev N. Kobayashi V. Korotkov V. Kozlov B. Krauss P. Kravchenko V.G. Krivokhijine L. Lagamba R. Lamb L. Lapikas I. Lehmann P. Lenisa L.A. Linden-Levy A. Lopez Ruiz W. Lorenzon X.-G. Lu X.-R. Lu B.-Q. Ma D. Mahon N.C.R. Makins S.I. Manaenkov L. Manfre Y. Mao B. Marianski A. Martinez de la Ossa H. Marukyan C.A. Miller A. Movsisyan V. Muccifora M. Murray D. Mueller A. Mussgiller E. Nappi Y. Naryshkin A. Nass M. Negodaev W.-D. Nowak L.L. Pappalardo R. Perez-Benito N. Pickert M. Raithel P.E. Reimer A.R. Reolon C. Riedl K. Rith G. Rosner A. Rostomyan J. Rubin D. Ryckbosch Y. Salomatin F. Sanftl A. Schaefer G. Schnell K.P. Schueler B. Seitz T.-A. Shibata V. Shutov M. Stancari M. Statera E. Steffens J.J.M. Steijger H. Stenzel J. Stewart F. Stinzing S. Taroian A. Terkulov A. Trzcinski M. Tytgat A. Vandenbroucke P.B. Van der Nat Y. Van Haarlem C. Van Hulse D. Veretennikov V. Vikhrov I. Vilardi C. Vogel S. Wang S. Yaschenko Z. Ye S. Yen W. Yu D. Zeiler B. Zihlmann P. Zupranski
This is my paper
classification hep-ex
keywords targetasymmetriesscatteringdeuteriumasymmetryazimuthalcompatiblepolarization
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

Azimuthal asymmetries in exclusive electroproduction of a real photon from a longitudinally polarized deuterium target are measured with respect to target polarization alone and with respect to target polarization combined with beam helicity and/or beam charge. The asymmetries appear in the distribution of the real photons in the azimuthal angle $\phi$ around the virtual photon direction, relative to the lepton scattering plane. The asymmetries arise from the deeply virtual Compton scattering process and its interference with the Bethe-Heitler process. The results for the beam-charge and beam-helicity asymmetries from a tensor polarized deuterium target with vanishing vector polarization are shown to be compatible with those from an unpolarized deuterium target, which is expected for incoherent scattering dominant at larger momentum transfer. Furthermore, the results for the single target-spin asymmetry and for the double-spin asymmetry are found to be compatible with the corresponding asymmetries previously measured on a hydrogen target. For coherent scattering on the deuteron at small momentum transfer to the target, these findings imply that the tensor contribution to the cross section is small. Furthermore, the tensor asymmetry is found to be compatible with zero.

Discussion (0). Sign in to comment.

Pith tools