Deep Exclusive Electroproduction of pi(0) at High Q(2) in the Quark Valence Regime

M. Dlamini; B. Karki; S. F. Ali; P-J Lin; F. Georges; H-S Ko; N. Israel; M. N. H. Rashad; A. Stefanko; D. Adikaram; Z. Ahmed; H. Albataineh; B. Aljawrneh; K. Allada; S. Allison; S. Alsalmi; D. Androic; K. Aniol; J. Annand; H. Atac; T. Averett; C. Ayerbe Gayoso; X. Bai; J. Bane; S. Barcus; K. Bartlett; Bellini; R. Beminiwattha; J. Bericic; D. Biswas; E. Brash; D. Bulumulla; J. Campbell; A. Camsonne; M. Carmignotto; J. Castellano; C. Chen; J-P Chen; T. Chetry; M. E. Christy; E. Cisbani; B. Clary; E. Cohen; N. Compton; J. C. Cornejo; S. Covrig Dusa; B. Crowe; S. Danagoulian; T. Danley; F. De Persio; W. Deconinck; M. Defurne; C. Desnault; D. Di; M. Duer; B. Duran; R. Ent; C. Fanelli; G. Franklin; E. Fuchey; C. Gal; D. Gaskell; T. Gautam; O. Glamazdin; K. Gnanvo; V. M. Gray; C. Gu; T. Hague; G. Hamad; D. Hamilton; K. Hamilton; O. Hansen; F. Hauenstein; W. Henry; D. W. Higinbotham; T. Holmstrom; T. Horn; Y. Huang; G. M. Huber; C. Hyde; H. Ibrahim; C-M Jen; K. Jin; M. Jones; A. Kabir; C. Keppel; Khachatryan; P. M. King; S. Li; W. Li; J. Liu; H. Liu; A. Liyanage; J. Magee; S. Malace; J. Mammei; P. Markowitz; E. McClellan; F. Meddi; D. Meekins; K. Mesik; R. Michaels; A. Mkrtchyan; R. Montgomery; C. Munoz Camacho; L. S. Myers; P. Nadel-Turonski; S. J. Nazeer; Nelyubin; D. Nguyen; N. Nuruzzaman; M. Nycz; O. F. Obretch; L. Ou; C. Palatchi; B. Pandey; S. Park; K. Park; C. Peng; R. Pomatsalyuk; E. Pooser; A. J. R. Puckett; Punjabi; B. Quinn; S. Rahman; P. E. Reimer; J. Roche; Sapkota; A. Sarty; B. Sawatzky; N. H. Saylor; B. Schmookler; M. H. Shabestari; A. Shahinyan; S. Sirca; G. R. Smith; S. Sooriyaarachchilage; N. Sparveris; R. Spies; T. Su; A. Subedi; Sulkosky; A. Sun; L. Thorne; Y. Tian; N. Ton; F. Tortorici; R. Trotta; G. M. Urciuoli; E. Voutier; B. Waidyawansa; Y. Wang; B. Wojtsekhowski; S. Wood; X. Yan; L. Ye; Z. Ye; C. Yero; J. Zhang; Y. Zhao; P. Zhu; Jefferson Lab Hall Collaboration

doi:10.1103/PhysRevLett.127.152301

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Deep Exclusive Electroproduction of pi(0) at High Q(2) in the Quark Valence Regime

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Deep Exclusive Electroproduction of pi(0) at High Q(2) in the Quark Valence Regime

M. Dlamini, B. Karki, S. F. Ali, P-J Lin, F. Georges, H-S Ko, N. Israel, M. N. H. Rashad, A. Stefanko, D. Adikaram, …

Physical review letters, Vol.127(15), pp.152301-152301

08/10/2021

DOI: https://doi.org/10.1103/PhysRevLett.127.152301

PMID: 34678020

Abstract

Physical Sciences

Physics

Physics, Multidisciplinary

Science & Technology

We report measurements of the exclusive neutral pion electroproduction cross section off protons at large values of x(B) (0.36, 0.48, and 0.60) and Q(2) (3.1 to 8.4 GeV2) obtained from Jefferson Lab Hall A experiment E12-06-014. The corresponding structure functions d sigma(T)/dt + epsilon d sigma(L)/dt, d sigma(TT)/dt d sigma(LT)/dt, and d sigma(LT)/dt are extracted as a function of the proton momentum transfer t - t(min). The results suggest the amplitude for transversely polarized virtual photons continues to dominate the cross section throughout this kinematic range. The data are well described by calculations based on transversity generalized parton distributions coupled to a helicity flip distribution amplitude of the pion, thus providing a unique way to probe the structure of the nucleon.

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Title: Deep Exclusive Electroproduction of pi(0) at High Q(2) in the Quark Valence Regime
Creators - without role: M. Dlamini - National and Kapodistrian University of Athens
B. Karki - National and Kapodistrian University of Athens
S. F. Ali - Pontifícia Universidade Católica de São Paulo
P-J Lin - University of Paris-Saclay
F. Georges - University of Paris-Saclay
H-S Ko - University of Paris-Saclay
N. Israel - National and Kapodistrian University of Athens
M. N. H. Rashad - Old Dominion University
A. Stefanko - Carnegie Mellon University
D. Adikaram - Newport
Z. Ahmed - University of Regina
H. Albataineh - Texas A&M University – Kingsville
B. Aljawrneh - North Carolina Ag & Tech State Univ, Greensboro, NC 27411 USA
K. Allada - MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
S. Allison - Old Dominion University
S. Alsalmi - Kent State University
D. Androic - University of Zagreb
K. Aniol - Calif State Univ Los Angeles, Los Angeles, CA 90032 USA
J. Annand - University of Glasgow
H. Atac - Temple University
T. Averett - William & Mary
C. Ayerbe Gayoso - William & Mary
X. Bai - University of Virginia
J. Bane - University of Tennessee at Knoxville
S. Barcus - William & Mary
K. Bartlett - William & Mary
Bellini - Ist Nazl Fis Nucl, Dipt Fis Uni Catania, I-95123 Catania, Italy
R. Beminiwattha - Syracuse University
J. Bericic - Newport
D. Biswas - Hampton University
E. Brash - Christopher Newport University
D. Bulumulla - Old Dominion University
J. Campbell - Dalhousie University
A. Camsonne - Newport
M. Carmignotto - Pontifícia Universidade Católica de São Paulo
J. Castellano - University of Miami
C. Chen - Hampton University
J-P Chen - Newport
T. Chetry - National and Kapodistrian University of Athens
M. E. Christy - Hampton University
E. Cisbani - Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro, I-200185 Rome, Italy
B. Clary - Univ Connecticut, Storrs, CT 06269 USA
E. Cohen - Tel Aviv University
N. Compton - National and Kapodistrian University of Athens
J. C. Cornejo - Carnegie Mellon University
S. Covrig Dusa - Newport
B. Crowe - North Carolina Cent Univ, Durham, NC 27707 USA
S. Danagoulian - North Carolina Ag & Tech State Univ, Greensboro, NC 27411 USA
T. Danley - National and Kapodistrian University of Athens
F. De Persio - Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro, I-200185 Rome, Italy
W. Deconinck - William & Mary
M. Defurne - CEA Saclay
C. Desnault - University of Paris-Saclay
D. Di - University of Virginia
M. Duer - Tel Aviv University
B. Duran - Temple University
R. Ent - Newport
C. Fanelli - MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
G. Franklin - Carnegie Mellon University
E. Fuchey - University of Connecticut
C. Gal - University of Virginia
D. Gaskell - Newport
T. Gautam - Hampton University
O. Glamazdin - Kharkov Inst Phys & Technol, UA-61108 Kharkov, Ukraine
K. Gnanvo - University of Virginia
V. M. Gray - William & Mary
C. Gu - University of Virginia
T. Hague - Kent State University
G. Hamad - National and Kapodistrian University of Athens
D. Hamilton - University of Glasgow
K. Hamilton - University of Glasgow
O. Hansen - Newport
F. Hauenstein - Old Dominion University
W. Henry - Temple University
D. W. Higinbotham - Newport
T. Holmstrom - Randolph Macon Coll, Ashlan, VA 23005 USA
T. Horn - Pontifícia Universidade Católica de São Paulo
Y. Huang - University of Virginia
G. M. Huber - University of Regina
C. Hyde - Old Dominion University
H. Ibrahim - Cairo University
C-M Jen - Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA
K. Jin - University of Virginia
M. Jones - Newport
A. Kabir - Kent State University
C. Keppel - Newport
Khachatryan - Newport
P. M. King - National and Kapodistrian University of Athens
S. Li - University of New Hampshire at Manchester
W. Li - University of Regina
J. Liu - University of Virginia
H. Liu - Columbia University
A. Liyanage - Hampton University
J. Magee - William & Mary
S. Malace - Newport
J. Mammei - University of Manitoba
P. Markowitz - University of Miami
E. McClellan - Newport
F. Meddi - Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro, I-200185 Rome, Italy
D. Meekins - Newport
K. Mesik - University of New Brunswick
R. Michaels - Newport
A. Mkrtchyan - Pontifícia Universidade Católica de São Paulo
R. Montgomery - University of Glasgow
C. Munoz Camacho - University of Paris-Saclay
L. S. Myers - Newport
P. Nadel-Turonski - Newport
S. J. Nazeer - Hampton University
Nelyubin - University of Virginia
D. Nguyen - University of Virginia
N. Nuruzzaman - Hampton University
M. Nycz - Kent State University
O. F. Obretch - Univ Connecticut, Storrs, CT 06269 USA
L. Ou - MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
C. Palatchi - University of Virginia
B. Pandey - Hampton University
S. Park - Stony Brook University
K. Park - Old Dominion University
C. Peng - Duke University
R. Pomatsalyuk - Kharkov Inst Phys & Technol, UA-61108 Kharkov, Ukraine
E. Pooser - Newport
A. J. R. Puckett - University of Connecticut
Punjabi - Norfolk State University
B. Quinn - Carnegie Mellon University
S. Rahman - University of Manitoba
P. E. Reimer - Argonne Natl Lab, Phys Div, Lemont, IL 60439 USA
J. Roche - National and Kapodistrian University of Athens
Sapkota - Pontifícia Universidade Católica de São Paulo
A. Sarty - St Marys Univ, Halifax, NS B3H 3C3, Canada
B. Sawatzky - Newport
N. H. Saylor - Rensselaer Polytech Inst, Troy, NY 12180 USA
B. Schmookler - MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
M. H. Shabestari - Mississippi State University
A. Shahinyan - AANL, 2 Alikhanian Bros St, Yerevan 0036, Armenia
S. Sirca - University of Ljubljana
G. R. Smith - Newport
S. Sooriyaarachchilage - Hampton University
N. Sparveris - Temple University
R. Spies - University of Manitoba
T. Su - Kent State University
A. Subedi - Mississippi State University
Sulkosky - MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
A. Sun - Carnegie Mellon University
L. Thorne - Carnegie Mellon University
Y. Tian - University of Jinan
N. Ton - University of Virginia
F. Tortorici - Ist Nazl Fis Nucl, Dipt Fis Uni Catania, I-95123 Catania, Italy
R. Trotta - Duquesne University
G. M. Urciuoli - Ist Nazl Fis Nucl, Sez Roma, Ple Aldo Moro, I-200185 Rome, Italy
E. Voutier - University of Paris-Saclay
B. Waidyawansa - Newport
Y. Wang - William & Mary
B. Wojtsekhowski - Newport
S. Wood - Newport
X. Yan - Huangshan University
L. Ye - Mississippi State University
Z. Ye - University of Virginia
C. Yero - University of Miami
J. Zhang - University of Virginia
Y. Zhao - Stony Brook University
P. Zhu - Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
Jefferson Lab Hall Collaboration
Publication Details: Physical review letters, Vol.127(15), pp.152301-152301
Publisher: Amer Physical Soc
Number of pages: 7
Grant note: DOE Early Career Award; United States Department of Energy (DOE) National Science Foundation (NSF) Natural Sciences and Engineering Research Council of Canada (NSERC) French CNRS/IN2P3 DE-AC05-06OR23177 / U.S. Department of Energy, Office of Science, Office of Nuclear Physics; United States Department of Energy (DOE) P2IO Laboratory of Excellence ANR; Agence Nationale de la Recherche (ANR)
Identifiers: 9949407508331
Academic Unit: King Saud University
Language: English
Resource Type: Journal article