Deeply Virtual Compton Scattering Cross Section at High BjorkenxB,Physical Review Letters

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Deeply Virtual Compton Scattering Cross Section at High BjorkenxB
Physical Review Letters ( IF 8.1 ) Pub Date : 2022-06-23 , DOI: 10.1103/physrevlett.128.252002
F Georges ₁ , M N H Rashad ₂ , A Stefanko ₃ , M Dlamini ₄ , B Karki ₄ , S F Ali ₅ , P-J Lin ₁ , H-S Ko _{1,

6} , N Israel ₄ , D Adikaram ₇ , Z Ahmed ₈ , H Albataineh ₉ , B Aljawrneh ₁₀ , K Allada ₁₁ , S Allison ₂ , S Alsalmi ₁₂ , D Androic ₁₃ , K Aniol ₁₄ , J Annand ₁₅ , H Atac ₁₆ , T Averett ₁₇ , C Ayerbe Gayoso ₁₇ , X Bai ₁₈ , J Bane ₁₉ , S Barcus ₁₇ , K Bartlett ₁₇ , V Bellini ₂₀ , R Beminiwattha ₂₁ , J Bericic ₇ , D Biswas ₂₂ , E Brash ₂₃ , D Bulumulla ₂ , J Campbell ₂₄ , A Camsonne ₇ , M Carmignotto ₅ , J Castellano ₂₅ , C Chen ₂₂ , J-P Chen ₇ , T Chetry ₄ , M E Christy ₂₂ , E Cisbani ₂₆ , B Clary ₂₇ , E Cohen ₂₈ , N Compton ₄ , J C Cornejo _{3,

17} , S Covrig Dusa ₇ , B Crowe ₂₉ , S Danagoulian ₁₀ , T Danley ₄ , F De Persio ₂₆ , W Deconinck ₁₇ , M Defurne ₃₀ , C Desnault ₁ , D Di ₁₈ , M Duer ₂₈ , B Duran ₁₆ , R Ent ₇ , C Fanelli ₁₁ , G Franklin ₃ , E Fuchey ₂₇ , C Gal ₁₈ , D Gaskell ₇ , T Gautam ₂₂ , O Glamazdin ₃₁ , K Gnanvo ₁₈ , V M Gray ₁₇ , C Gu ₁₈ , T Hague ₁₂ , G Hamad ₄ , D Hamilton ₁₅ , K Hamilton ₁₅ , O Hansen ₇ , F Hauenstein ₂ , W Henry ₁₆ , D W Higinbotham ₇ , T Holmstrom ₃₂ , T Horn _{5,

7} , Y Huang ₁₈ , G M Huber ₈ , C E Hyde ₂ , H Ibrahim ₃₃ , C-M Jen ₃₄ , K Jin ₁₈ , M Jones ₇ , A Kabir ₁₂ , C Keppel ₇ , V Khachatryan _{7,

35,

36} , P M King ₄ , S Li ₃₇ , W B Li ₈ , J Liu ₁₈ , H Liu ₃₈ , A Liyanage ₂₂ , J Magee ₁₇ , S Malace ₇ , J Mammei ₃₉ , P Markowitz ₂₅ , E McClellan ₇ , M Mazouz ₄₀ , F Meddi ₂₆ , D Meekins ₇ , K Mesik ₄₁ , R Michaels ₇ , A Mkrtchyan ₅ , R Montgomery ₁₅ , C Muñoz Camacho ₁ , L S Myers ₇ , P Nadel-Turonski ₇ , S J Nazeer ₂₂ , V Nelyubin ₁₈ , D Nguyen ₁₈ , N Nuruzzaman ₂₂ , M Nycz ₁₂ , O F Obretch ₂₇ , L Ou ₁₁ , C Palatchi ₁₈ , B Pandey ₂₂ , S Park ₃₅ , K Park ₂ , C Peng ₄₂ , R Pomatsalyuk ₃₁ , E Pooser ₇ , A J R Puckett ₂₇ , V Punjabi ₄₃ , B Quinn ₃ , S Rahman ₃₉ , P E Reimer ₄₄ , J Roche ₄ , I Sapkota ₅ , A Sarty ₄₅ , B Sawatzky ₇ , N H Saylor ₄₆ , B Schmookler ₁₁ , M H Shabestari ₄₇ , A Shahinyan ₄₈ , S Sirca ₄₉ , G R Smith ₇ , S Sooriyaarachchilage ₂₂ , N Sparveris ₁₆ , R Spies ₃₉ , T Su ₁₂ , A Subedi ₄₇ , V Sulkosky ₁₈ , A Sun ₃ , L Thorne ₃ , Y Tian ₅₀ , N Ton ₁₈ , F Tortorici ₂₀ , R Trotta ₅₁ , G M Urciuoli ₂₆ , E Voutier ₁ , B Waidyawansa ₇ , Y Wang ₁₇ , B Wojtsekhowski ₇ , S Wood ₇ , X Yan ₅₂ , L Ye ₄₇ , Z Ye ₁₈ , C Yero ₂₅ , J Zhang ₁₈ , Y Zhao ₃₅ , P Zhu ₅₃ ,

Affiliation

Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
Old Dominion University, Norfolk, Virginia 23529, USA.
Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
Ohio University, Athens, Ohio 45701, USA.
Catholic University of America, Washington, DC 20064, USA.
Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826 Seoul, Korea.
Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
University of Regina, Regina, Saskatchewan, S4S 0A2 Canada.
Texas A&M University-Kingsville, Kingsville, Texas 78363, USA.
North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA.
Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Kent State University, Kent, Ohio 44240, USA.
University of Zagreb, Trg Republike Hrvatske 14, 10000 Zagreb, Croatia.
California State University, Los Angeles, Los Angeles, California 90032, USA.
SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Temple University, Philadelphia, Pennsylvania 19122, USA.
The College of William and Mary, Williamsburg, Virginia 23185, USA.
University of Virginia, Charlottesville, Virginia 22904, USA.
University of Tennessee, Knoxville, Tennessee 37996, USA.
Istituto Nazionale di Fisica Nucleare, Dipartimento di Fisica delle Università degli di Catania, I-95123 Catania, Italy.
Syracuse University, Syracuse, New York 13244, USA.
Hampton University, Hampton, Virginia 23669, USA.
Christopher Newport University, Newport News, Virginia 23606, USA.
Dalhousie University, Nova Scotia, NS B3H 4R2, Canada.
Florida International University, Miami, Florida 33199, USA.
Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy.
University of Connecticut, Storrs, Connecticut 06269, USA.
Tel Aviv University, Tel Aviv-Yafo 6997801, Israel.
North Carolina Central University, Durham, North Carolina 27707, USA.
CEA Saclay, 91191 Gif-sur-Yvette, France.
Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.
Longwood University, Farmville, Virginia 23901, USA.
Cairo University, Cairo 121613, Egypt.
Virginia Polytechnic Institute & State University, Blacksburg, Virginia 234061, USA.
Stony Brook, State University of New York, New York 11794, USA.
Cornell University, Ithaca, New York 14853, USA.
University of New Hampshire, Durham, New Hampshire 03824, USA.
Columbia University, New York, New York 10027, USA.
University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
Faculté des Sciences de Monastir, Monastir 5019, Tunisia.
Rutgers University, New Brunswick, New Jersey 08854, USA.
Duke University, Durham, North Carolina 27708, USA.
Norfolk State University, Norfolk, Virginia 23504, USA.
Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA.
Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada.
Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
Mississippi State University, Mississippi State, Mississippi 39762, USA.
AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia.
Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia.
Shandong University, Jinan 250100, China.
Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.
Huangshan University, Tunxi, Daizhen Road 245041, China.
University of Science and Technology of China, Hefei, Anhui 230026, China.

We report high-precision measurements of the deeply virtual Compton scattering (DVCS) cross section at high values of the Bjorken variable

x_{B}

. DVCS is sensitive to the generalized parton distributions of the nucleon, which provide a three-dimensional description of its internal constituents. Using the exact analytic expression of the DVCS cross section for all possible polarization states of the initial and final electron and nucleon, and final state photon, we present the first experimental extraction of all four helicity-conserving Compton form factors (CFFs) of the nucleon as a function of

x_{B}

, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs.

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