Deeply virtual Compton scattering off the neutron

M. Benali; C. Desnault; M. Mazouz; Z. Ahmed; H. Albataineh; K. Allada; K. A. Aniol; V. Bellini; W. Boeglin; P. Bertin; M. Brossard; A. Camsonne; M. Canan; S. Chandavar; C. Chen; J. P. Chen; M. Defurne; C. W. de Jager; R. de Leo; A. Deur; L. El Fassi; R. Ent; D. Flay; M. Friend; E. Fuchey; S. Frullani; F. Garibaldi; D. Gaskell; A. Giusa; O. Glamazdin; S. Golge; J. Gomez; O. Hansen; D. Higinbotham; T. Holmstrom; T. Horn; J. Huang; M. Huang; G. M. Huber; C. E. Hyde; S. Iqbal; F. Itard; Ho Kang; Hy Kang; A. Kelleher; C. Keppel; S. Koirala; I. Korover; J. J. LeRose; R. Lindgren; E. Long; M. Magne; J. Mammei; D. J. Margaziotis; P. Markowitz; A. Martí Jiménez-Argüello; F. Meddi; D. Meekins; R. Michaels; M. Mihovilovic; N. Muangma; C. Muñoz Camacho; P. Nadel-Turonski; N. Nuruzzaman; R. Paremuzyan; R. Pomatsalyuk; A. Puckett; V. Punjabi; Y. Qiang; A. Rakhman; M. N.H. Rashad; S. Riordan; J. Roche; G. Russo; F. Sabatié; K. Saenboonruang; A. Saha; B. Sawatzky; L. Selvy; A. Shahinyan; S. Sirca; P. Solvignon; M. L. Sperduto; R. Subedi; V. Sulkosky; C. Sutera; W. A. Tobias; G. M. Urciuoli; D. Wang; B. Wojtsekhowski; H. Yao; Z. Ye; L. Zana; X. Zhan; J. Zhang; B. Zhao; Z. Zhao; X. Zheng; P. Zhu

doi:10.1038/s41567-019-0774-3

Deeply virtual Compton scattering off the neutron

M. Benali, C. Desnault, M. Mazouz, Z. Ahmed, H. Albataineh, K. Allada, K. A. Aniol, V. Bellini, W. Boeglin, P. Bertin, M. Brossard, A. Camsonne, M. Canan, S. Chandavar, C. Chen, J. P. Chen, M. Defurne, C. W. de Jager, R. de Leo, A. DeurL. El Fassi, R. Ent, D. Flay, M. Friend, E. Fuchey, S. Frullani, F. Garibaldi, D. Gaskell, A. Giusa, O. Glamazdin, S. Golge, J. Gomez, O. Hansen, D. Higinbotham, T. Holmstrom, T. Horn, J. Huang, M. Huang, G. M. Huber, C. E. Hyde, S. Iqbal, F. Itard, Ho Kang, Hy Kang, A. Kelleher, C. Keppel, S. Koirala, I. Korover, J. J. LeRose, R. Lindgren, E. Long, M. Magne, J. Mammei, D. J. Margaziotis, P. Markowitz, A. Martí Jiménez-Argüello, F. Meddi, D. Meekins, R. Michaels, M. Mihovilovic, N. Muangma, C. Muñoz Camacho, P. Nadel-Turonski, N. Nuruzzaman, R. Paremuzyan, R. Pomatsalyuk, A. Puckett, V. Punjabi, Y. Qiang, A. Rakhman, M. N.H. Rashad, S. Riordan, J. Roche, G. Russo, F. Sabatié, K. Saenboonruang, A. Saha, B. Sawatzky, L. Selvy, A. Shahinyan, S. Sirca, P. Solvignon, M. L. Sperduto, R. Subedi, V. Sulkosky, C. Sutera, W. A. Tobias, G. M. Urciuoli, D. Wang, B. Wojtsekhowski, H. Yao, Z. Ye, L. Zana, X. Zhan, J. Zhang, B. Zhao, Z. Zhao, X. Zheng, P. Zhu

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

17 Scopus citations

Abstract

The three-dimensional structure of nucleons (protons and neutrons) is embedded in so-called generalized parton distributions, which are accessible from deeply virtual Compton scattering. In this process, a high-energy electron is scattered off a nucleon by exchanging a virtual photon. Then, a highly energetic real photon is emitted from one of the quarks inside the nucleon, which carries information on the quark’s transverse position and longitudinal momentum. By measuring the cross-section of deeply virtual Compton scattering, Compton form factors related to the generalized parton distributions can be extracted. Here, we report the observation of unpolarized deeply virtual Compton scattering off a deuterium target. From the measured photon-electroproduction cross-sections, we have extracted the cross-section of a quasifree neutron and a coherent deuteron. Due to the approximate isospin symmetry of quantum chromodynamics, we can determine the contributions from the different quark flavours to the helicity-conserved Compton form factors by combining our measurements with previous ones probing the proton’s internal structure. These results advance our understanding of the description of the nucleon structure, which is important to solve the proton spin puzzle.

Original language	English
Pages (from-to)	191-198
Number of pages	8
Journal	Nature Physics
Volume	16
Issue number	2
DOIs	https://doi.org/10.1038/s41567-019-0774-3
State	Published - Feb 1 2020
Externally published	Yes

Funding

We acknowledge the essential work of the Jefferson Lab accelerator staff and the Hall A technical staff. This work was supported by the Department of Energy (DOE), the National Science Foundation, the French Centre National de la Recherche Scientifique, the Agence Nationale de la Recherche, the Commissariat à l’énergie atomique et aux énergies alternatives and P2IO Laboratory of Excellence. Jefferson Science Associates, LLC, operates Jefferson Lab for the US DOE under US DOE contract DE-AC05-060R23177.

Funders	Funder number
National Science Foundation	1714133
U.S. Department of Energy	DE-AC05-060R23177
Centre Eau Terre Environnement, Institut National de la Recherche Scientifique
Agence Nationale de la Recherche
Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Access to Document

10.1038/s41567-019-0774-3

Cite this

Benali, M., Desnault, C., Mazouz, M., Ahmed, Z., Albataineh, H., Allada, K., Aniol, K. A., Bellini, V., 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., ... Zhu, P. (2020). Deeply virtual Compton scattering off the neutron. Nature Physics, 16(2), 191-198. https://doi.org/10.1038/s41567-019-0774-3

@article{ee50990042ba4f9ead33fbbfcbdab967,

title = "Deeply virtual Compton scattering off the neutron",

abstract = "The three-dimensional structure of nucleons (protons and neutrons) is embedded in so-called generalized parton distributions, which are accessible from deeply virtual Compton scattering. In this process, a high-energy electron is scattered off a nucleon by exchanging a virtual photon. Then, a highly energetic real photon is emitted from one of the quarks inside the nucleon, which carries information on the quark{\textquoteright}s transverse position and longitudinal momentum. By measuring the cross-section of deeply virtual Compton scattering, Compton form factors related to the generalized parton distributions can be extracted. Here, we report the observation of unpolarized deeply virtual Compton scattering off a deuterium target. From the measured photon-electroproduction cross-sections, we have extracted the cross-section of a quasifree neutron and a coherent deuteron. Due to the approximate isospin symmetry of quantum chromodynamics, we can determine the contributions from the different quark flavours to the helicity-conserved Compton form factors by combining our measurements with previous ones probing the proton{\textquoteright}s internal structure. These results advance our understanding of the description of the nucleon structure, which is important to solve the proton spin puzzle.",

author = "M. Benali and C. Desnault and M. Mazouz and Z. Ahmed and H. Albataineh and K. Allada and Aniol, {K. A.} and V. Bellini and W. Boeglin and P. Bertin and M. Brossard and A. Camsonne and M. Canan and S. Chandavar and C. Chen and Chen, {J. P.} and M. Defurne and {de Jager}, {C. W.} and {de Leo}, R. and A. Deur and {El Fassi}, L. and R. Ent and D. Flay and M. Friend and E. Fuchey and S. Frullani and F. Garibaldi and D. Gaskell and A. Giusa and O. Glamazdin and S. Golge and J. Gomez and O. Hansen and D. Higinbotham and T. Holmstrom and T. Horn and J. Huang and M. Huang and Huber, {G. M.} and Hyde, {C. E.} and S. Iqbal and F. Itard and Ho Kang and Hy Kang and A. Kelleher and C. Keppel and S. Koirala and I. Korover and LeRose, {J. J.} and R. Lindgren and E. Long and M. Magne and J. Mammei and Margaziotis, {D. J.} and P. Markowitz and {Mart{\'i} Jim{\'e}nez-Arg{\"u}ello}, A. and F. Meddi and D. Meekins and R. Michaels and M. Mihovilovic and N. Muangma and {Mu{\~n}oz Camacho}, C. and P. Nadel-Turonski and N. Nuruzzaman and R. Paremuzyan and R. Pomatsalyuk and A. Puckett and V. Punjabi and Y. Qiang and A. Rakhman and Rashad, {M. N.H.} and S. Riordan and J. Roche and G. Russo and F. Sabati{\'e} and K. Saenboonruang and A. Saha and B. Sawatzky and L. Selvy and A. Shahinyan and S. Sirca and P. Solvignon and Sperduto, {M. L.} and R. Subedi and V. Sulkosky and C. Sutera and Tobias, {W. A.} and Urciuoli, {G. M.} and D. Wang and B. Wojtsekhowski and H. Yao and Z. Ye and L. Zana and X. Zhan and J. Zhang and B. Zhao and Z. Zhao and X. Zheng and P. Zhu",

note = "Publisher Copyright: {\textcopyright} 2020, The Author(s), under exclusive licence to Springer Nature Limited.",

year = "2020",

month = feb,

day = "1",

doi = "10.1038/s41567-019-0774-3",

language = "English",

volume = "16",

pages = "191--198",

journal = "Nature Physics",

issn = "1745-2473",

publisher = "Nature Research",

number = "2",

}

Benali, M, Desnault, C, Mazouz, M, Ahmed, Z, Albataineh, H, Allada, K, Aniol, KA, Bellini, V, Boeglin, W, Bertin, P, Brossard, M, Camsonne, A, Canan, M, Chandavar, S, Chen, C, Chen, JP, Defurne, M, de Jager, CW, de Leo, R, 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, GM, Hyde, CE, Iqbal, S, Itard, F, Kang, H, Kang, H, Kelleher, A, Keppel, C, Koirala, S, Korover, I, LeRose, JJ, Lindgren, R, Long, E, Magne, M, Mammei, J, Margaziotis, DJ, 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, Pomatsalyuk, R, Puckett, A, Punjabi, V, Qiang, Y, Rakhman, A, Rashad, MNH, Riordan, S, Roche, J, Russo, G, Sabatié, F, Saenboonruang, K, Saha, A, Sawatzky, B, Selvy, L, Shahinyan, A, Sirca, S, Solvignon, P, Sperduto, ML, Subedi, R, Sulkosky, V, Sutera, C, Tobias, WA, Urciuoli, GM, Wang, D, Wojtsekhowski, B, Yao, H, Ye, Z, Zana, L, Zhan, X, Zhang, J, Zhao, B, Zhao, Z, Zheng, X & Zhu, P 2020, 'Deeply virtual Compton scattering off the neutron', Nature Physics, vol. 16, no. 2, pp. 191-198. https://doi.org/10.1038/s41567-019-0774-3

TY - JOUR

T1 - Deeply virtual Compton scattering off the neutron

AU - Benali, M.

AU - Desnault, C.

AU - Mazouz, M.

AU - Ahmed, Z.

AU - Albataineh, H.

AU - Allada, K.

AU - Aniol, K. A.

AU - Bellini, V.

AU - Boeglin, W.

AU - Bertin, P.

AU - Brossard, M.

AU - Camsonne, A.

AU - Canan, M.

AU - Chandavar, S.

AU - Chen, C.

AU - Chen, J. P.

AU - Defurne, M.

AU - de Jager, C. W.

AU - de Leo, R.

AU - Deur, A.

AU - El Fassi, L.

AU - Ent, R.

AU - Flay, D.

AU - Friend, M.

AU - Fuchey, E.

AU - Frullani, S.

AU - Garibaldi, F.

AU - Gaskell, D.

AU - Giusa, A.

AU - Glamazdin, O.

AU - Golge, S.

AU - Gomez, J.

AU - Hansen, O.

AU - Higinbotham, D.

AU - Holmstrom, T.

AU - Horn, T.

AU - Huang, J.

AU - Huang, M.

AU - Huber, G. M.

AU - Hyde, C. E.

AU - Iqbal, S.

AU - Itard, F.

AU - Kang, Ho

AU - Kang, Hy

AU - Kelleher, A.

AU - Keppel, C.

AU - Koirala, S.

AU - Korover, I.

AU - LeRose, J. J.

AU - Lindgren, R.

AU - Long, E.

AU - Magne, M.

AU - Mammei, J.

AU - Margaziotis, D. J.

AU - Markowitz, P.

AU - Martí Jiménez-Argüello, A.

AU - Meddi, F.

AU - Meekins, D.

AU - Michaels, R.

AU - Mihovilovic, M.

AU - Muangma, N.

AU - Muñoz Camacho, C.

AU - Nadel-Turonski, P.

AU - Nuruzzaman, N.

AU - Paremuzyan, R.

AU - Pomatsalyuk, R.

AU - Puckett, A.

AU - Punjabi, V.

AU - Qiang, Y.

AU - Rakhman, A.

AU - Rashad, M. N.H.

AU - Riordan, S.

AU - Roche, J.

AU - Russo, G.

AU - Sabatié, F.

AU - Saenboonruang, K.

AU - Saha, A.

AU - Sawatzky, B.

AU - Selvy, L.

AU - Shahinyan, A.

AU - Sirca, S.

AU - Solvignon, P.

AU - Sperduto, M. L.

AU - Subedi, R.

AU - Sulkosky, V.

AU - Sutera, C.

AU - Tobias, W. A.

AU - Urciuoli, G. M.

AU - Wang, D.

AU - Wojtsekhowski, B.

AU - Yao, H.

AU - Ye, Z.

AU - Zana, L.

AU - Zhan, X.

AU - Zhang, J.

AU - Zhao, B.

AU - Zhao, Z.

AU - Zheng, X.

AU - Zhu, P.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - The three-dimensional structure of nucleons (protons and neutrons) is embedded in so-called generalized parton distributions, which are accessible from deeply virtual Compton scattering. In this process, a high-energy electron is scattered off a nucleon by exchanging a virtual photon. Then, a highly energetic real photon is emitted from one of the quarks inside the nucleon, which carries information on the quark’s transverse position and longitudinal momentum. By measuring the cross-section of deeply virtual Compton scattering, Compton form factors related to the generalized parton distributions can be extracted. Here, we report the observation of unpolarized deeply virtual Compton scattering off a deuterium target. From the measured photon-electroproduction cross-sections, we have extracted the cross-section of a quasifree neutron and a coherent deuteron. Due to the approximate isospin symmetry of quantum chromodynamics, we can determine the contributions from the different quark flavours to the helicity-conserved Compton form factors by combining our measurements with previous ones probing the proton’s internal structure. These results advance our understanding of the description of the nucleon structure, which is important to solve the proton spin puzzle.

AB - The three-dimensional structure of nucleons (protons and neutrons) is embedded in so-called generalized parton distributions, which are accessible from deeply virtual Compton scattering. In this process, a high-energy electron is scattered off a nucleon by exchanging a virtual photon. Then, a highly energetic real photon is emitted from one of the quarks inside the nucleon, which carries information on the quark’s transverse position and longitudinal momentum. By measuring the cross-section of deeply virtual Compton scattering, Compton form factors related to the generalized parton distributions can be extracted. Here, we report the observation of unpolarized deeply virtual Compton scattering off a deuterium target. From the measured photon-electroproduction cross-sections, we have extracted the cross-section of a quasifree neutron and a coherent deuteron. Due to the approximate isospin symmetry of quantum chromodynamics, we can determine the contributions from the different quark flavours to the helicity-conserved Compton form factors by combining our measurements with previous ones probing the proton’s internal structure. These results advance our understanding of the description of the nucleon structure, which is important to solve the proton spin puzzle.

UR - http://www.scopus.com/inward/record.url?scp=85078450781&partnerID=8YFLogxK

U2 - 10.1038/s41567-019-0774-3

DO - 10.1038/s41567-019-0774-3

M3 - Article

AN - SCOPUS:85078450781

SN - 1745-2473

VL - 16

SP - 191

EP - 198

JO - Nature Physics

JF - Nature Physics

IS - 2

ER -

Deeply virtual Compton scattering off the neutron

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this