Deeply Virtual Compton Scattering Cross Section at High Bjorken xB

(Jefferson Lab Hall A Collaboration)

doi:10.1103/PhysRevLett.128.252002

Deeply Virtual Compton Scattering Cross Section at High Bjorken xB

(Jefferson Lab Hall A Collaboration)

Université Paris-Saclay
Old Dominion University
Carnegie Mellon University
Ohio University
Catholic University of America
Seoul National University
Thomas Jefferson National Accelerator Facility
University of Regina
Texas A&M University-Kingsville
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Julius L. Chambers Biomedical/Biotechnology Research Institute (BBRI) and North Carolina Central University
Institut Pierre Simon Laplace, CNRS and CEA
Kharkov Institute of Physics and Technology
Longwood University
Cairo University
Virginia Polytechnic Institute and State University
Stony Brook University
Cornell University
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Columbia University
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Faculté des Sciences de Monastir
Rutgers University–New Brunswick
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Argonne National Laboratory
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Mississippi State University
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University of Ljubljana
Shandong University
Duquesne University
Huangshan University
University of Science and Technology of China

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

We report high-precision measurements of the deeply virtual Compton scattering (DVCS) cross section at high values of the Bjorken variable xB. 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 xB, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs.

Original language	English
Article number	252002
Journal	Physical Review Letters
Volume	128
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.128.252002
Publication status	Published - 24 Jun 2022
Externally published	Yes

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10.1103/PhysRevLett.128.252002

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@article{acd77024741d4ac7ba84ae798b316e4a,

title = "Deeply Virtual Compton Scattering Cross Section at High Bjorken xB",

abstract = "We report high-precision measurements of the deeply virtual Compton scattering (DVCS) cross section at high values of the Bjorken variable xB. 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 xB, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs.",

author = "\{(Jefferson Lab Hall A Collaboration)\} and F. Georges and Rashad, \{M. N.H.\} and A. Stefanko and M. Dlamini and B. Karki and Ali, \{S. F.\} and Lin, \{P. J.\} and Ko, \{H. S.\} and N. Israel and D. Adikaram and Z. Ahmed and H. Albataineh and B. Aljawrneh and K. Allada and S. Allison and S. Alsalmi and D. Androic and K. Aniol and J. Annand and H. Atac and T. Averett and \{Ayerbe Gayoso\}, C. and X. Bai and J. Bane and S. Barcus and K. Bartlett and V. Bellini and R. Beminiwattha and J. Bericic and D. Biswas and E. Brash and D. Bulumulla and J. Campbell and A. Camsonne and M. Carmignotto and J. Castellano and C. Chen and Chen, \{J. P.\} and T. Chetry and Christy, \{M. E.\} and E. Cisbani and B. Clary and E. Cohen and N. Compton and Cornejo, \{J. C.\} and \{Covrig Dusa\}, S. and B. Crowe and S. Danagoulian and T. Danley and \{De Persio\}, F.",

note = "Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society.",

year = "2022",

month = jun,

day = "24",

doi = "10.1103/PhysRevLett.128.252002",

language = "English",

volume = "128",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "25",

}

TY - JOUR

T1 - Deeply Virtual Compton Scattering Cross Section at High Bjorken xB

AU - (Jefferson Lab Hall A Collaboration)

AU - Georges, F.

AU - Rashad, M. N.H.

AU - Stefanko, A.

AU - Dlamini, M.

AU - Karki, B.

AU - Ali, S. F.

AU - Lin, P. J.

AU - Ko, H. S.

AU - Israel, N.

AU - Adikaram, D.

AU - Ahmed, Z.

AU - Albataineh, H.

AU - Aljawrneh, B.

AU - Allada, K.

AU - Allison, S.

AU - Alsalmi, S.

AU - Androic, D.

AU - Aniol, K.

AU - Annand, J.

AU - Atac, H.

AU - Averett, T.

AU - Ayerbe Gayoso, C.

AU - Bai, X.

AU - Bane, J.

AU - Barcus, S.

AU - Bartlett, K.

AU - Bellini, V.

AU - Beminiwattha, R.

AU - Bericic, J.

AU - Biswas, D.

AU - Brash, E.

AU - Bulumulla, D.

AU - Campbell, J.

AU - Camsonne, A.

AU - Carmignotto, M.

AU - Castellano, J.

AU - Chen, C.

AU - Chen, J. P.

AU - Chetry, T.

AU - Christy, M. E.

AU - Cisbani, E.

AU - Clary, B.

AU - Cohen, E.

AU - Compton, N.

AU - Cornejo, J. C.

AU - Covrig Dusa, S.

AU - Crowe, B.

AU - Danagoulian, S.

AU - Danley, T.

AU - De Persio, F.

PY - 2022/6/24

Y1 - 2022/6/24

N2 - We report high-precision measurements of the deeply virtual Compton scattering (DVCS) cross section at high values of the Bjorken variable xB. 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 xB, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs.

AB - We report high-precision measurements of the deeply virtual Compton scattering (DVCS) cross section at high values of the Bjorken variable xB. 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 xB, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs.

U2 - 10.1103/PhysRevLett.128.252002

DO - 10.1103/PhysRevLett.128.252002

M3 - Article

C2 - 35802440

AN - SCOPUS:85133498684

SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

M1 - 252002

ER -

Deeply Virtual Compton Scattering Cross Section at High Bjorken xB

Abstract

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