DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Rosenbluth Separation of the π 0 Electroproduction Cross Section Off the Neutron

Abstract

Here, we report the first longitudinal/transverse separation of the deeply virtual exclusive $$\pi^0$$ electroproduction cross section off the neutron and coherent deuteron. Furthemore, the corresponding four structure functions $$d\sigma_L/dt$$, $$d\sigma_T/dt$$, $$d\sigma_{LT}/dt$$ and $$d\sigma_{TT}/dt$$ 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 $$ed \to ed\pi^0$$ cross sections are found compatible with the small values expected from theoretical models. The $$en \to en\pi^0$$ cross sections show a dominance from the response to transversely polarized photons, and are in good agreement with calculations based on the transversity GPDs of the nucleon. By combining our results with previous measurements of $$\pi^0$$ electroproduction off the proton, we present a flavor decomposition of the $$u$$ and $$d$$ quark contributions to the cross section.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ORCiD logo; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Mississippi State Univ., Starkville, MS (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Org.:
Jefferson Lab Hall A Collaboration
OSTI Identifier:
1361037
Alternate Identifier(s):
OSTI ID: 1361117; OSTI ID: 1377068; OSTI ID: 1604527
Report Number(s):
JLAB-PHY-17-2435; DOE/OR/23177-4128; arXiv:1702.00835
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1702736
Grant/Contract Number:  
AC05-060R23177; AC02-06CH11357; FG02-07ER41528
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 22; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Mazouz, M., Ahmed, Z., Albataineh, H., Allada, K., Aniol, K. A., Bellini, V., Benali, M., Boeglin, W., Bertin, P., Brossard, M., Camsonne, A., Canan, M., Chandavar, S., Chen, C., Chen, J. -P., Defurne, M., de Jager, C. W., de Leo, R., Desnault, C., Deur, A., El Fassi, L., Ent, R., Flay, D., Friend, M., Fuchey, E., Frullani, S., Garibaldi, F., Gaskell, D., Giusa, A., Glamazdin, O., Golge, S., Gomez, J., Hansen, O., Higinbotham, D., Holmstrom, T., Horn, T., Huang, J., Huang, M., Huber, G. M., Hyde, C. E., Iqbal, S., Itard, F., Kang, Ho., Kang, Hy., Kelleher, A., Keppel, C., Koirala, S., Korover, I., LeRose, J. J., Lindgren, R., Long, E., Magne, M., Mammei, J., Margaziotis, D. J., Markowitz, P., Martí Jiménez-Argüello, A., Meddi, F., Meekins, D., Michaels, R., Mihovilovic, M., Muangma, N., Muñoz Camacho, C., Nadel-Turonski, P., Nuruzzaman, N., Paremuzyan, R., Puckett, A., Punjabi, V., Qiang, Y., Rakhman, A., Rashad, M. N. H., Riordan, S., Roche, J., Russo, G., Sabatié, F., Saenboonruang, K., Saha, A., Sawatzky, B., Selvy, L., Shahinyan, A., Sirca, S., Solvignon, P., Sperduto, M. L., Subedi, R., Sulkosky, V., Sutera, C., Tobias, W. A., Urciuoli, G. M., Wang, D., Wojtsekhowski, B., Yao, H., Ye, Z., Zana, L., Zhan, X., Zhang, J., Zhao, B., Zhao, Z., Zheng, X., and Zhu, P. Rosenbluth Separation of the π0 Electroproduction Cross Section Off the Neutron. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.118.222002.
Mazouz, M., Ahmed, Z., Albataineh, H., Allada, K., Aniol, K. A., Bellini, V., Benali, M., Boeglin, W., Bertin, P., Brossard, M., Camsonne, A., Canan, M., Chandavar, S., Chen, C., Chen, J. -P., Defurne, M., de Jager, C. W., de Leo, R., Desnault, C., Deur, A., El Fassi, L., Ent, R., Flay, D., Friend, M., Fuchey, E., Frullani, S., Garibaldi, F., Gaskell, D., Giusa, A., Glamazdin, O., Golge, S., Gomez, J., Hansen, O., Higinbotham, D., Holmstrom, T., Horn, T., Huang, J., Huang, M., Huber, G. M., Hyde, C. E., Iqbal, S., Itard, F., Kang, Ho., Kang, Hy., Kelleher, A., Keppel, C., Koirala, S., Korover, I., LeRose, J. J., Lindgren, R., Long, E., Magne, M., Mammei, J., Margaziotis, D. J., Markowitz, P., Martí Jiménez-Argüello, A., Meddi, F., Meekins, D., Michaels, R., Mihovilovic, M., Muangma, N., Muñoz Camacho, C., Nadel-Turonski, P., Nuruzzaman, N., Paremuzyan, R., Puckett, A., Punjabi, V., Qiang, Y., Rakhman, A., Rashad, M. N. H., Riordan, S., Roche, J., Russo, G., Sabatié, F., Saenboonruang, K., Saha, A., Sawatzky, B., Selvy, L., Shahinyan, A., Sirca, S., Solvignon, P., Sperduto, M. L., Subedi, R., Sulkosky, V., Sutera, C., Tobias, W. A., Urciuoli, G. M., Wang, D., Wojtsekhowski, B., Yao, H., Ye, Z., Zana, L., Zhan, X., Zhang, J., Zhao, B., Zhao, Z., Zheng, X., & Zhu, P. Rosenbluth Separation of the π0 Electroproduction Cross Section Off the Neutron. United States. https://doi.org/10.1103/PhysRevLett.118.222002
Mazouz, M., Ahmed, Z., Albataineh, H., Allada, K., Aniol, K. A., Bellini, V., Benali, M., Boeglin, W., Bertin, P., Brossard, M., Camsonne, A., Canan, M., Chandavar, S., Chen, C., Chen, J. -P., Defurne, M., de Jager, C. W., de Leo, R., Desnault, C., Deur, A., El Fassi, L., Ent, R., Flay, D., Friend, M., Fuchey, E., Frullani, S., Garibaldi, F., Gaskell, D., Giusa, A., Glamazdin, O., Golge, S., Gomez, J., Hansen, O., Higinbotham, D., Holmstrom, T., Horn, T., Huang, J., Huang, M., Huber, G. M., Hyde, C. E., Iqbal, S., Itard, F., Kang, Ho., Kang, Hy., Kelleher, A., Keppel, C., Koirala, S., Korover, I., LeRose, J. J., Lindgren, R., Long, E., Magne, M., Mammei, J., Margaziotis, D. J., Markowitz, P., Martí Jiménez-Argüello, A., Meddi, F., Meekins, D., Michaels, R., Mihovilovic, M., Muangma, N., Muñoz Camacho, C., Nadel-Turonski, P., Nuruzzaman, N., Paremuzyan, R., Puckett, A., Punjabi, V., Qiang, Y., Rakhman, A., Rashad, M. N. H., Riordan, S., Roche, J., Russo, G., Sabatié, F., Saenboonruang, K., Saha, A., Sawatzky, B., Selvy, L., Shahinyan, A., Sirca, S., Solvignon, P., Sperduto, M. L., Subedi, R., Sulkosky, V., Sutera, C., Tobias, W. A., Urciuoli, G. M., Wang, D., Wojtsekhowski, B., Yao, H., Ye, Z., Zana, L., Zhan, X., Zhang, J., Zhao, B., Zhao, Z., Zheng, X., and Zhu, P. Thu . "Rosenbluth Separation of the π0 Electroproduction Cross Section Off the Neutron". United States. https://doi.org/10.1103/PhysRevLett.118.222002. https://www.osti.gov/servlets/purl/1361037.
@article{osti_1361037,
title = {Rosenbluth Separation of the π0 Electroproduction Cross Section Off the Neutron},
author = {Mazouz, M. and Ahmed, Z. and Albataineh, H. and Allada, K. and Aniol, K. A. and Bellini, V. and Benali, M. and Boeglin, W. and Bertin, P. and Brossard, M. and Camsonne, A. and Canan, M. and Chandavar, S. and Chen, C. and Chen, J. -P. and Defurne, M. and de Jager, C. W. and de Leo, R. and Desnault, C. and Deur, A. and El Fassi, L. and Ent, R. and Flay, D. and Friend, M. and Fuchey, E. and Frullani, S. and Garibaldi, F. and Gaskell, D. and Giusa, A. and Glamazdin, O. and Golge, S. and Gomez, J. and Hansen, O. and Higinbotham, D. and Holmstrom, T. and Horn, T. and Huang, J. and Huang, M. and Huber, G. M. and Hyde, C. E. and Iqbal, S. and Itard, F. and Kang, Ho. and Kang, Hy. and Kelleher, A. and Keppel, C. and Koirala, S. and Korover, I. and LeRose, J. J. and Lindgren, R. and Long, E. and Magne, M. and Mammei, J. and Margaziotis, D. J. and Markowitz, P. and Martí Jiménez-Argüello, A. and Meddi, F. and Meekins, D. and Michaels, R. and Mihovilovic, M. and Muangma, N. and Muñoz Camacho, C. and Nadel-Turonski, P. and Nuruzzaman, N. and Paremuzyan, R. and Puckett, A. and Punjabi, V. and Qiang, Y. and Rakhman, A. and Rashad, M. N. H. and Riordan, S. and Roche, J. and Russo, G. and Sabatié, F. and Saenboonruang, K. and Saha, A. and Sawatzky, B. and Selvy, L. and Shahinyan, A. and Sirca, S. and Solvignon, P. and Sperduto, M. L. and Subedi, R. and Sulkosky, V. and Sutera, C. and Tobias, W. A. and Urciuoli, G. M. and Wang, D. and Wojtsekhowski, B. and Yao, H. and Ye, Z. and Zana, L. and Zhan, X. and Zhang, J. and Zhao, B. and Zhao, Z. and Zheng, X. and Zhu, P.},
abstractNote = {Here, we report the first longitudinal/transverse separation of the deeply virtual exclusive $\pi^0$ electroproduction cross section off the neutron and coherent deuteron. Furthemore, the corresponding four structure functions $d\sigma_L/dt$, $d\sigma_T/dt$, $d\sigma_{LT}/dt$ and $d\sigma_{TT}/dt$ 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 $ed \to ed\pi^0$ cross sections are found compatible with the small values expected from theoretical models. The $en \to en\pi^0$ cross sections show a dominance from the response to transversely polarized photons, and are in good agreement with calculations based on the transversity GPDs of the nucleon. By combining our results with previous measurements of $\pi^0$ electroproduction off the proton, we present a flavor decomposition of the $u$ and $d$ quark contributions to the cross section.},
doi = {10.1103/PhysRevLett.118.222002},
journal = {Physical Review Letters},
number = 22,
volume = 118,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}

Journal Article:

Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

QED radiative corrections to virtual Compton scattering
journal, July 2000


Transversity in hard exclusive electroproduction of pseudoscalar mesons
journal, September 2011


Threshold pion photoproduction on nucleons
journal, March 1992


Wave Functions, Evolution Equations and Evolution Kernels from Light-Ray Operators of QCD
journal, January 1994

  • Müller, D.; Robaschik, D.; Geyer, B.
  • Fortschritte der Physik/Progress of Physics, Vol. 42, Issue 2
  • DOI: 10.1002/prop.2190420202

Scaling Tests of the Cross Section for Deeply Virtual Compton Scattering
journal, December 2006


E00-110 experiment at Jefferson Lab Hall A: Deeply virtual Compton scattering off the proton at 6 GeV
journal, November 2015


Nonforward parton distributions
journal, November 1997


Rosenbluth Separation of the π 0 Electroproduction Cross Section
journal, December 2016


QED radiative corrections in processes of exclusive pion electroproduction
journal, October 2002


Exclusive neutral pion electroproduction in the deeply virtual regime
journal, February 2011


Transverse Spin Structure of the Nucleon from Lattice-QCD Simulations
journal, May 2007


Deeply virtual electroproduction of photons and mesons on the nucleon: Leading order amplitudes and power corrections
journal, October 1999


Generalized parton distributions
journal, December 2003


Exclusive π 0 electroproduction at W > 2  GeV with CLAS
journal, August 2014


Exclusive η electroproduction at W > 2 GeV with CLAS and transversity generalized parton distributions
journal, March 2017


Nucleon tensor charge from exclusive π 0 electroproduction
journal, March 2009


Gauge-Invariant Decomposition of Nucleon Spin
journal, January 1997


Measurement of Exclusive π 0 Electroproduction Structure Functions and their Relationship to Transverse Generalized Parton Distributions
journal, September 2012


Basic instrumentation for Hall A at Jefferson Lab
journal, April 2004

  • Alcorn, J.; Anderson, B. D.; Aniol, K. A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 522, Issue 3
  • DOI: 10.1016/j.nima.2003.11.415

Deep inelastic scattering: The early years
journal, July 1991


Factorization for hard exclusive electroproduction of mesons in QCD
journal, September 1997


Impact Parameter Space Interpretation for Generalized Parton Distributions
journal, January 2003


Deep electroproduction of photons and mesons on the deuteron
journal, March 2004


Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • DOI: 10.1016/S0168-9002(03)01368-8

Deeply Virtual Compton Scattering off the Neutron
journal, December 2007


Electron Scattering from the Proton
journal, April 1955


Parametrization of the Paris N N potential
journal, March 1980


Cross Sections for the Exclusive Photon Electroproduction on the Proton and Generalized Parton Distributions
journal, November 2015


Single-spin asymmetries: The Trento conventions
journal, December 2004


Helicity-flip off-forward parton distributions of the nucleon
journal, July 1998


Works referencing / citing this record:

Deeply virtual Compton scattering off the neutron
journal, January 2020