Rosenbluth Separation of the π^{0} Electroproduction Cross Section Off the Neutron

M Mazouz¹, Z Ahmed², H Albataineh³, K Allada⁴, K A Aniol⁵, V Bellini⁶, M Benali⁷, W Boeglin⁸, P Bertin^{7

9}, M Brossard⁷, A Camsonne⁹, M Canan¹⁰, S Chandavar¹¹, C Chen¹², J-P Chen⁹, M Defurne¹³, C W de Jager⁹, R de Leo¹⁴, C Desnault¹⁵, A Deur⁹, L El Fassi¹⁶, R Ent⁹, D Flay¹⁷, M Friend¹⁸, E Fuchey⁷, S Frullani¹⁹, F Garibaldi¹⁹, D Gaskell⁹, A Giusa⁶, O Glamazdin²⁰, S Golge²¹, J Gomez⁹, O Hansen⁹, D Higinbotham⁹, T Holmstrom²², T Horn²³, J Huang⁴, M Huang²⁴, G M Huber²⁵, C E Hyde^{7

10}, S Iqbal⁵, F Itard⁷, Ho Kang²⁶, Hy Kang²⁶, A Kelleher²⁷, C Keppel⁹, S Koirala¹⁰, I Korover²⁸, J J LeRose⁹, R Lindgren²⁹, E Long³⁰, M Magne⁷, J Mammei³¹, D J Margaziotis⁵, P Markowitz⁸, A Martí Jiménez-Argüello^{15

32}, F Meddi¹⁹, D Meekins⁹, R Michaels⁹, M Mihovilovic³³, N Muangma⁴, C Muñoz Camacho^{7

15}, P Nadel-Turonski⁹, N Nuruzzaman¹², R Paremuzyan¹⁵, A Puckett³⁴, V Punjabi³⁵, Y Qiang⁹, A Rakhman², M N H Rashad¹⁰, S Riordan³⁶, J Roche¹¹, G Russo⁶, F Sabatié¹³, K Saenboonruang^{29

37}, A Saha⁹, B Sawatzky^{9

17}, L Selvy³⁰, A Shahinyan³⁸, S Sirca³³, P Solvignon⁹, M L Sperduto⁶, R Subedi³⁹, V Sulkosky⁴, C Sutera⁶, W A Tobias²⁹, G M Urciuoli⁴⁰, D Wang²⁹, B Wojtsekhowski⁹, H Yao¹⁷, Z Ye²⁹, L Zana², X Zhan⁴¹, J Zhang⁹, B Zhao²⁷, Z Zhao²⁹, X Zheng²⁹, P Zhu²⁹; Jefferson Lab Hall A Collaboration

Affiliations

¹ Faculté des Sciences de Monastir, Monastir 5000, Tunisia.
² Syracuse University, Syracuse, New York 13244, USA.
³ Texas A&M University-Kingsville, Kingsville, Texas 78363, USA.
⁴ Massachusetts Institute of Technology,Cambridge, Massachusetts 02139, USA.
⁵ California State University, Los Angeles, Los Angeles, California 90032, USA.
⁶ INFN/Sezione di Catania, 95125 Catania, Italy.
⁷ Clermont université, université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France.
⁸ Florida International University, Miami, Florida 33199, USA.
⁹ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
¹⁰ Old Dominion University, Norfolk, Virginia 23529, USA.
¹¹ Ohio University, Athens, Ohio 45701, USA.
¹² Hampton University, Hampton, Virginia 23668, USA.
¹³ Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France.
¹⁴ Università di Bari, 70121 Bari, Italy.
¹⁵ Institut de Physique Nucléaire CNRS-IN2P3, Orsay 91405, France.
¹⁶ Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
¹⁷ Temple University, Philadelphia, Pennsylvania 19122, USA.
¹⁸ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
¹⁹ INFN/Sezione Sanità, 00161 Roma, Italy.
²⁰ Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.
²¹ North Carolina Central University, Durham, North Carolina 27701, USA.
²² Longwood University, Farmville, Virginia 23909, USA.
²³ The Catholic University of America, Washington, DC 20064, USA.
²⁴ Duke University, Durham, North Carolina 27708, USA.
²⁵ University of Regina, Regina, Saskatchewan S4S 0A2, Canada.
²⁶ Seoul National University, Seoul 08826, South Korea.
²⁷ College of William and Mary, Williamsburg, Virginia 23187, USA.
²⁸ Tel Aviv University, Tel Aviv 69978, Israel.
²⁹ University of Virginia, Charlottesville, Virginia 22904, USA.
³⁰ Kent State University, Kent, Ohio 44242, USA.
³¹ University of Massachusetts, Amherst, Massachusetts 01003, USA.
³² Facultad de Física, Universidad de Valencia, Valencia 46100, Spain.
³³ University of Ljubljana, 1000 Ljubljana, Slovenia.
³⁴ Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
³⁵ Norfolk State University, Norfolk, Virginia 23529, USA.
³⁶ Stony Brook University, Stony Brook, New York 11794, USA.
³⁷ Kasetsart University, Chatuchak, Bangkok, 10900, Thailand.
³⁸ Yerevan Physics Institute, Yerevan 375036, Armenia.
³⁹ Georges Washington University, Washington, DC 20052, USA.
⁴⁰ INFN/Sezione di Roma, 00185 Roma, Italy.
⁴¹ Argonne National Laboratory, Lemont, Illinois 60439, USA.

PMID: 28621966
DOI: 10.1103/PhysRevLett.118.222002

Rosenbluth Separation of the π^{0} Electroproduction Cross Section Off the Neutron

M Mazouz et al. Phys Rev Lett. 2017.

. 2017 Jun 2;118(22):222002.

doi: 10.1103/PhysRevLett.118.222002. Epub 2017 Jun 1.

Authors

Affiliations

¹ Faculté des Sciences de Monastir, Monastir 5000, Tunisia.
² Syracuse University, Syracuse, New York 13244, USA.
³ Texas A&M University-Kingsville, Kingsville, Texas 78363, USA.
⁴ Massachusetts Institute of Technology,Cambridge, Massachusetts 02139, USA.
⁵ California State University, Los Angeles, Los Angeles, California 90032, USA.
⁶ INFN/Sezione di Catania, 95125 Catania, Italy.
⁷ Clermont université, université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France.
⁸ Florida International University, Miami, Florida 33199, USA.
⁹ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
¹⁰ Old Dominion University, Norfolk, Virginia 23529, USA.
¹¹ Ohio University, Athens, Ohio 45701, USA.
¹² Hampton University, Hampton, Virginia 23668, USA.
¹³ Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France.
¹⁴ Università di Bari, 70121 Bari, Italy.
¹⁵ Institut de Physique Nucléaire CNRS-IN2P3, Orsay 91405, France.
¹⁶ Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
¹⁷ Temple University, Philadelphia, Pennsylvania 19122, USA.
¹⁸ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
¹⁹ INFN/Sezione Sanità, 00161 Roma, Italy.
²⁰ Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine.
²¹ North Carolina Central University, Durham, North Carolina 27701, USA.
²² Longwood University, Farmville, Virginia 23909, USA.
²³ The Catholic University of America, Washington, DC 20064, USA.
²⁴ Duke University, Durham, North Carolina 27708, USA.
²⁵ University of Regina, Regina, Saskatchewan S4S 0A2, Canada.
²⁶ Seoul National University, Seoul 08826, South Korea.
²⁷ College of William and Mary, Williamsburg, Virginia 23187, USA.
²⁸ Tel Aviv University, Tel Aviv 69978, Israel.
²⁹ University of Virginia, Charlottesville, Virginia 22904, USA.
³⁰ Kent State University, Kent, Ohio 44242, USA.
³¹ University of Massachusetts, Amherst, Massachusetts 01003, USA.
³² Facultad de Física, Universidad de Valencia, Valencia 46100, Spain.
³³ University of Ljubljana, 1000 Ljubljana, Slovenia.
³⁴ Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
³⁵ Norfolk State University, Norfolk, Virginia 23529, USA.
³⁶ Stony Brook University, Stony Brook, New York 11794, USA.
³⁷ Kasetsart University, Chatuchak, Bangkok, 10900, Thailand.
³⁸ Yerevan Physics Institute, Yerevan 375036, Armenia.
³⁹ Georges Washington University, Washington, DC 20052, USA.
⁴⁰ INFN/Sezione di Roma, 00185 Roma, Italy.
⁴¹ Argonne National Laboratory, Lemont, Illinois 60439, USA.

PMID: 28621966
DOI: 10.1103/PhysRevLett.118.222002

Abstract

We report the first longitudinal-transverse separation of the deeply virtual exclusive π^{0} electroproduction cross section off the neutron and coherent deuteron. The corresponding four structure functions dσ_{L}/dt, dσ_{T}/dt, dσ_{LT}/dt, and dσ_{TT}/dt are extracted as a function of the momentum transfer to the recoil system at Q^{2}=1.75 GeV^{2} and x_{B}=0.36. The ed→edπ^{0} cross sections are found compatible with the small values expected from theoretical models. The en→enπ^{0} cross sections show a dominance from the response to transversely polarized photons, and are in good agreement with calculations based on the transversity generalized parton distributions of the nucleon. By combining these results with previous measurements of π^{0} electroproduction off the proton, we present a flavor decomposition of the u and d quark contributions to the cross section.

PubMed Disclaimer

LinkOut - more resources

Full Text Sources
- American Physical Society
Other Literature Sources
- scite Smart Citations
Research Materials
- NCI CPTC Antibody Characterization Program
Miscellaneous
- NCI CPTAC Assay Portal

Save citation to file

Email citation

Add to Collections

Add to My Bibliography

Your saved search

Create a file for external citation management software

Your RSS Feed

Rosenbluth Separation of the π^{0} Electroproduction Cross Section Off the Neutron

Affiliations

Rosenbluth Separation of the π^{0} Electroproduction Cross Section Off the Neutron

Authors

Affiliations

Abstract

LinkOut - more resources

Full Text Sources

Other Literature Sources

Research Materials

Miscellaneous