Deep Exclusive Electroproduction of π^{0} at High Q^{2} in the Quark Valence Regime.

Journal

Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141

Informations de publication

Date de publication:
08 Oct 2021
Historique:
received: 02 12 2020
revised: 07 06 2021
accepted: 17 08 2021
entrez: 22 10 2021
pubmed: 23 10 2021
medline: 23 10 2021
Statut: ppublish

Résumé

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  GeV^{2}) obtained from Jefferson Lab Hall A experiment E12-06-014. The corresponding structure functions dσ_{T}/dt+εdσ_{L}/dt, dσ_{TT}/dt, dσ_{LT}/dt, and dσ_{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.

Identifiants

DOI: 10.1103/PhysRevLett.127.152301 PMID: 34678020
pubmed: 34678020
doi: 10.1103/PhysRevLett.127.152301
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

152301

Auteurs

M Dlamini (M)

Ohio University, Athens, Ohio 45701, USA.

B Karki (B)

Ohio University, Athens, Ohio 45701, USA.

S F Ali (SF)

Catholic University of America, Washington, DC 20064, USA.

P-J Lin (PJ)

Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.

F Georges (F)

Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.

H-S Ko (HS)

Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826 Seoul, Korea.

N Israel (N)

Ohio University, Athens, Ohio 45701, USA.

M N H Rashad (MNH)

Old Dominion University, Norfolk, Virginia 23529, USA.

A Stefanko (A)

Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.

D Adikaram (D)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

Z Ahmed (Z)

University of Regina, Regina, Saskatchewan S4S 0A2 Canada.

H Albataineh (H)

Texas A&M University-Kingsville, Kingsville, Texas 78363, USA.

B Aljawrneh (B)

North Carolina Ag. and Tech. State University, Greensboro, North Carolina 27411, USA.

K Allada (K)

Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

S Allison (S)

Old Dominion University, Norfolk, Virginia 23529, USA.

S Alsalmi (S)

Kent State University, Kent, Ohio 44240, USA.

D Androic (D)

University of Zagreb, Trg Republike Hrvatske 14, 10000 Zagreb, Croatia.

K Aniol (K)

California State University, Los Angeles, Los Angeles, California 90032, USA.

J Annand (J)

SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.

H Atac (H)

Temple University, Philadelphia, Pennsylvania 19122, USA.

T Averett (T)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

C Ayerbe Gayoso (C)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

X Bai (X)

University of Virginia, Charlottesville, Virginia 22904, USA.

J Bane (J)

University of Tennessee, Knoxville, Tennessee 37996, USA.

S Barcus (S)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

K Bartlett (K)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

V Bellini (V)

Istituto Nazionale di Fisica Nucleare, Dipt. Di Fisica delle Uni. di Catania, I-95123 Catania, Italy.

R Beminiwattha (R)

Syracuse University, Syracuse, New York 13244, USA.

J Bericic (J)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

D Biswas (D)

Hampton University, Hampton, Virginia 23669, USA.

E Brash (E)

Christopher Newport University, Newport News, Virginia 23606, USA.

D Bulumulla (D)

Old Dominion University, Norfolk, Virginia 23529, USA.

J Campbell (J)

Dalhousie University, Nova Scotia B3H 4R2, Canada.

A Camsonne (A)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

M Carmignotto (M)

Catholic University of America, Washington, DC 20064, USA.

J Castellano (J)

Florida International University, Miami, Florida 33199, USA.

C Chen (C)

Hampton University, Hampton, Virginia 23669, USA.

J-P Chen (JP)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

T Chetry (T)

Ohio University, Athens, Ohio 45701, USA.

M E Christy (ME)

Hampton University, Hampton, Virginia 23669, USA.

E Cisbani (E)

Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy.

B Clary (B)

University of Connecticut, Storrs, Connecticut 06269, USA.

E Cohen (E)

Tel Aviv University, Tel Aviv 699780 1, Israel.

N Compton (N)

Ohio University, Athens, Ohio 45701, USA.

J C Cornejo (JC)

Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
The College of William and Mary, Williamsburg, Virginia 23185, USA.

S Covrig Dusa (S)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

B Crowe (B)

North Carolina Central University, Durham, North Carolina 27707, USA.

S Danagoulian (S)

North Carolina Ag. and Tech. State University, Greensboro, North Carolina 27411, USA.

T Danley (T)

Ohio University, Athens, Ohio 45701, USA.

F De Persio (F)

Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy.

W Deconinck (W)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

M Defurne (M)

CEA Saclay, 91191 Gif-sur-Yvette, France.

C Desnault (C)

Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.

D Di (D)

University of Virginia, Charlottesville, Virginia 22904, USA.

M Duer (M)

Tel Aviv University, Tel Aviv 699780 1, Israel.

B Duran (B)

Temple University, Philadelphia, Pennsylvania 19122, USA.

R Ent (R)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

C Fanelli (C)

Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

G Franklin (G)

Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.

E Fuchey (E)

University of Connecticut, Storrs, Connecticut 06269, USA.

C Gal (C)

University of Virginia, Charlottesville, Virginia 22904, USA.

D Gaskell (D)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

T Gautam (T)

Hampton University, Hampton, Virginia 23669, USA.

O Glamazdin (O)

Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.

K Gnanvo (K)

University of Virginia, Charlottesville, Virginia 22904, USA.

V M Gray (VM)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

C Gu (C)

University of Virginia, Charlottesville, Virginia 22904, USA.

T Hague (T)

Kent State University, Kent, Ohio 44240, USA.

G Hamad (G)

Ohio University, Athens, Ohio 45701, USA.

D Hamilton (D)

SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.

K Hamilton (K)

SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.

O Hansen (O)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

F Hauenstein (F)

Old Dominion University, Norfolk, Virginia 23529, USA.

W Henry (W)

Temple University, Philadelphia, Pennsylvania 19122, USA.

D W Higinbotham (DW)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

T Holmstrom (T)

Randolph Macon College, Ashlan, Virginia 23005, USA.

T Horn (T)

Catholic University of America, Washington, DC 20064, USA.
Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

Y Huang (Y)

University of Virginia, Charlottesville, Virginia 22904, USA.

G M Huber (GM)

University of Regina, Regina, Saskatchewan S4S 0A2 Canada.

C Hyde (C)

Old Dominion University, Norfolk, Virginia 23529, USA.

H Ibrahim (H)

Cairo University, Cairo 121613, Egypt.

C-M Jen (CM)

Virginia Polytechnic Institute & State University, Blacksburg, Virginia 234061, USA.

K Jin (K)

University of Virginia, Charlottesville, Virginia 22904, USA.

M Jones (M)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

A Kabir (A)

Kent State University, Kent, Ohio 44240, USA.

C Keppel (C)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

V Khachatryan (V)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
Stony Brook, State University of New York, New York 11794, USA.
Cornell University, Ithaca, New York 14853, USA.

P M King (PM)

Ohio University, Athens, Ohio 45701, USA.

S Li (S)

University of New Hampshire, Durham, New Hampshire 03824, USA.

W Li (W)

University of Regina, Regina, Saskatchewan S4S 0A2 Canada.

J Liu (J)

University of Virginia, Charlottesville, Virginia 22904, USA.

H Liu (H)

Columbia University, New York, New York 10027, USA.

A Liyanage (A)

Hampton University, Hampton, Virginia 23669, USA.

J Magee (J)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

S Malace (S)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

J Mammei (J)

University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.

P Markowitz (P)

Florida International University, Miami, Florida 33199, USA.

E McClellan (E)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

F Meddi (F)

Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy.

D Meekins (D)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

K Mesik (K)

Rutgers University, New Brunswick, New Jersey 08854, USA.

R Michaels (R)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

A Mkrtchyan (A)

Catholic University of America, Washington, DC 20064, USA.

R Montgomery (R)

SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom.

C Muñoz Camacho (C)

Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.

L S Myers (LS)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

P Nadel-Turonski (P)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

S J Nazeer (SJ)

Hampton University, Hampton, Virginia 23669, USA.

V Nelyubin (V)

University of Virginia, Charlottesville, Virginia 22904, USA.

D Nguyen (D)

University of Virginia, Charlottesville, Virginia 22904, USA.

N Nuruzzaman (N)

Hampton University, Hampton, Virginia 23669, USA.

M Nycz (M)

Kent State University, Kent, Ohio 44240, USA.

O F Obretch (OF)

University of Connecticut, Storrs, Connecticut 06269, USA.

L Ou (L)

Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

C Palatchi (C)

University of Virginia, Charlottesville, Virginia 22904, USA.

B Pandey (B)

Hampton University, Hampton, Virginia 23669, USA.

S Park (S)

Stony Brook, State University of New York, New York 11794, USA.

K Park (K)

Old Dominion University, Norfolk, Virginia 23529, USA.

C Peng (C)

Duke University, Durham, North Carolina 27708, USA.

R Pomatsalyuk (R)

Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.

E Pooser (E)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

A J R Puckett (AJR)

University of Connecticut, Storrs, Connecticut 06269, USA.

V Punjabi (V)

Norfolk State University, Norfolk, Virginia 23504, USA.

B Quinn (B)

Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.

S Rahman (S)

University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.

P E Reimer (PE)

Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA.

J Roche (J)

Ohio University, Athens, Ohio 45701, USA.

I Sapkota (I)

Catholic University of America, Washington, DC 20064, USA.

A Sarty (A)

Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada.

B Sawatzky (B)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

N H Saylor (NH)

Rensselaer Polytechnic Institute, Troy, New York 12180, USA.

B Schmookler (B)

Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

M H Shabestari (MH)

Mississippi State University, Mississippi State, Mississippi 39762, USA.

A Shahinyan (A)

AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia.

S Sirca (S)

Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia.

G R Smith (GR)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

S Sooriyaarachchilage (S)

Hampton University, Hampton, Virginia 23669, USA.

N Sparveris (N)

Temple University, Philadelphia, Pennsylvania 19122, USA.

R Spies (R)

University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.

T Su (T)

Kent State University, Kent, Ohio 44240, USA.

A Subedi (A)

Mississippi State University, Mississippi State, Mississippi 39762, USA.

V Sulkosky (V)

Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

A Sun (A)

Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.

L Thorne (L)

Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.

Y Tian (Y)

Shandong University, Jinan, Shandong, 250100, China.

N Ton (N)

University of Virginia, Charlottesville, Virginia 22904, USA.

F Tortorici (F)

Istituto Nazionale di Fisica Nucleare, Dipt. Di Fisica delle Uni. di Catania, I-95123 Catania, Italy.

R Trotta (R)

Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.

G M Urciuoli (GM)

Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy.

E Voutier (E)

Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.

B Waidyawansa (B)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

Y Wang (Y)

The College of William and Mary, Williamsburg, Virginia 23185, USA.

B Wojtsekhowski (B)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

S Wood (S)

Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.

X Yan (X)

Huangshan University, Huangshan, Anhui, 245041, China.

L Ye (L)

Mississippi State University, Mississippi State, Mississippi 39762, USA.

Z Ye (Z)

University of Virginia, Charlottesville, Virginia 22904, USA.

C Yero (C)

Florida International University, Miami, Florida 33199, USA.

J Zhang (J)

University of Virginia, Charlottesville, Virginia 22904, USA.

Y Zhao (Y)

Stony Brook, State University of New York, New York 11794, USA.

P Zhu (P)

University of Science and Technology of China, Hefei, Anhui 230026, China.

Classifications MeSH