Article
Measurement of deeply virtual compton scattering with a polarized-proton target
Physical Review Letters
(2006)
- S Chen
- H Avakian
- VD Burkert
- P Eugenio
- G Adams
- M Amarian
- P Ambrozewicz
- M Anghinolfi
- G Asryan
- H Bagdasaryan
- N Baillie
- JP Ball
- NA Baltzell
- S Barrow
- V Batourine
- M Battaglieri
- K Beard
- I Bedlinskiy
- M Bektasoglu
- M Bellis
- N Benmouna
- BL Berman
- AS Biselli
- BE Bonner
- S Bouchigny
- S Boiarinov
- P Bosted
- R Bradford
- D Branford
- WJ Briscoe
- WK Brooks
- S Bultmann
- C Butuceanu
- JR Calarco
- SL Careccia
- DS Carman
- B Carnahan
- A Cazes
- PL Cole
- P Collins
- P Coltharp
- D Cords
- P Corvisiero
- D Crabb
- H Crannell
- V Crede
- JP Cummings
- R De Masi
- R DeVita
- E De Sanctis
- PV Degtyarenko
- H Denizli
- L Dennis
- A Deur
- KV Dharmawardane
- KS Dhuga
- C Djalali
- GE Dodge
- J Donnelly
- D Doughty
- M Dugger
- S Dytman
- OP Dzyubak
- H Egiyan
- KS Egiyan
- L El Fassi
- L Elouadrhiri
- R Fatemi
- G Fedotov
- G Feldman
- RJ Feuerbach
- TA Forest
- H Funsten
- M Garcon
- G Gavalian
- GP Gilfoyle
- KL Giovanetti
- FX Girod
- JT Goetz
- E Golovatch
- A Gonenc
- RW Gothe
- KA Griffioen
- M Guidal
- M Guillo
- N Guler
- L Guo
- V Gyurjyan
- C Hadjidakis
- K Hafidi
- H Hakobyan
- RS Hakobyan
- J Hardie
- D Heddle
- FW Hersman
- K Hicks
- I Hleiqawi
- M Holtrop
- M Huertas
- CE Hyde-Wright
- Y Ilieva
- DG Ireland
- BS Ishkhanov
- EL Isupov
- MM Ito
- D Jenkins
- HS Jo
- K Joo
- HG Juengst
- C Keith
- JD Kellie
- M Khandaker
- KY Kim
- K Kim
- W Kim
- A Klein
- FJ Klein
- M Klusman
- M Kossov
- LH Kramer
- V Kubarovsky
- J Kuhn
- SE Kuhn
- SV Kuleshov
- J Lachniet
- JM Laget
- J Langheinrich
- D Lawrence
- J Li
- ACS Lima
- K Livingston
- H Lu
- K Lukashin
- M MacCormick
- N Markov
- S McAleer
- B McKinnon
- JWC McNabb
- BA Mecking
- MD Mestayer
- CA Meyer
- T Mibe
- K Mikhailov
- R Minehart
- M Mirazita
- R Miskimen
- V Mokeev
- L Morand
- SA Morrow
- M Moteabbed
- J Mueller
- GS Mutchler
- P Nadel-Turonski
- J Napolitano
- R Nasseripour
- N Natasha
- S Niccolai
- G Niculescu
- I Niculescu
- BB Niczyporuk
- MR Niroula
- RA Niyazov
- M Nozar
- GV O'Rielly
- M Osipenko
- AI Ostrovidov
- K Park
- E Pasyuk
- C Paterson
- SA Philips
- J Pierce
- N Pivnyuk
- D Pocanic
- O Pogorelko
- E Polli
- I Popa
- S Pozdniakov
- BM Preedom
- JW Price
- Y Prok
- D Protopopescu
- LM Qin
- BA Raue
- G Riccardi
- G Ricco
- M Ripani
- BG Ritchie
- F Ronchetti
- G Rosner
- P Rossi
- D Rowntree
- PD Rubin
- F Sabatie
- C Salgado
- JP Santoro
- V Sapunenko
- RA Schumacher
- VS Serov
- YG Sharabian
- J Shaw
- NV Shvedunov
- AV Skabelin
- ES Smith
- LC Smith
- DI Sober
- A Stavinsky
- SS Stepanyan
- S Stepanyan
- BE Stokes
- P Stoler
- II Strakovsky
- S Strauch
- R Suleiman
- M Taiuti
- DJ Tedeschi
- U Thoma
- A Tkabladze
- S Tkachenko
- L Todor
- C Tur
- M Ungaro
- M Vanderhaeghen
- MF Vineyard
- AV Vlassov
- DP Watts
- LB Weinstein
- DP Weygand
- M Williams, University of Massachusetts - Amherst
- E Wolin
- MH Wood
- A Yegneswaran
- J Yun
- L Zana
- J Zhang
- B Zhao
- Z Zhao
Abstract
The longitudinal target-spin asymmetry AUL for the exclusive electroproduction of high-energy photons was measured for the first time in ep-->e;'pgamma. The data have been accumulated at JLab with the CLAS spectrometer using 5.7 GeV electrons and a longitudinally polarized NH3 target. A significant azimuthal angular dependence was observed, resulting from the interference of the deeply virtual Compton scattering and Bethe-Heitler processes. The amplitude of the sinvarphi moment is 0.252+/-0.042stat+/-0.020sys. Theoretical calculations are in good agreement with the magnitude and the kinematic dependence of the target-spin asymmetry, which is sensitive to the generalized parton distributions H and H.
Disciplines
Publication Date
January 1, 2006
Publisher Statement
Doi:10.1103/PhysRevLett.97.072002
Copyright 2006 by The American Physical Society.
http://prl.aps.org/pdf/PRL/v97/i7/e072002
Citation Information
S Chen, H Avakian, VD Burkert, P Eugenio, et al.. "Measurement of deeply virtual compton scattering with a polarized-proton target" Physical Review Letters Vol. 97 Iss. 7 (2006) Available at: http://works.bepress.com/michael_williams/13/