Related papers: Exploring the Structure of the Bound Proton with D…

Incoherent deeply virtual Compton scattering off $^4$He

Very recently, for the first time, the two channels of nuclear deeply virtual Compton scattering (DVCS), the coherent and incoherent ones, have been separated by the CLAS collaboration at JLab, using a $^4$He target. The incoherent channel,…

Nuclear Theory · Physics 2021-01-04 Sara Fucini , Sergio Scopetta , Michele Viviani

Neutron DVCS Measurements with BONuS12 in CLAS12

The three-dimensional picture of quarks and gluons in the nucleon is set to be revealed through deeply virtual Compton scattering (DVCS). With the absence of a free neutron target, the deuterium target represents the simplest nucleus to be…

Nuclear Experiment · Physics 2019-08-05 M. Hattawy , M. Amaryan , S. Bültmann , G. Dodge , N. Dzbenski , C. Hyde , S. Kuhn , D. Payette , J. Poudel , L. Weinstein , R. Dupré , M. Guidal , D. Marchand , C. Muñoz , S. Niccolai , E. Voutier , K. Hafidi , Z. Yi , T. Chetry , L. El-Fassi , N. Baltzell , G. Gavalian , F. X. Girod , S. Stepanyan , I. Albayrak , E. Christy , A. Nadeeshani , N. Kalantarians , C. Ayerbe Gayoso , D. Jenkins

Measurement of the transverse target-spin asymmetry associated with deeply virtual Compton scattering on the proton

Measurements of deeply virtual Compton scattering (DVCS) made at HERMES using 27.6 GeV $e^\pm$ beams and various internal polarized or unpolarized gaseous targets are discussed. Results are reported on the transverse target-spin asymmetry…

High Energy Physics - Experiment · Physics 2007-05-23 Zhenyu Ye

Spectator-Tagged Deeply Virtual Compton Scattering on Light Nuclei

The three-dimensional picture of quarks and gluons in the proton is set to be revealed through Deeply virtual Compton scattering while a critically important puzzle in the one-dimensional picture remains, namely, the origins of the EMC…

Nuclear Experiment · Physics 2017-08-03 Whitney Armstrong , John Arrington , Ian Cloët , Adam Freese , Kawtar Hafidi , Mohammad Hattawy , Seamus Riordan , Sereres Johnston , David Potteveld , Paul Reimer , Zhihong Ye , Jacques Ball , Maxime Defurne , Michel Garcon , Herve Moutarde , Sebastien Procureur , Franck Sabatie , Wim Cosyn , Malek Mazouz , Alberto Accardi , Julien Bettane , Gabriel Charles , Raphael Dupre , Michel Guidal , Dominique Marchand , Carlos Munoz , Silvia Niccolai , Eric Voutier , Krishna Adhikari , James Dunne , Dipangkar Dutta , Lamiaa El Fassi , Md Latiful Kabir , Li Ye , Vadim Guzey , Nathan Baltzell , Francois-Xavier Girod , Valery Kubarovsky , Kijun Park , Stepan Stepanyan , Burcu Duran , Sylvester Joosten , Zein-Eddine Meziani , Michael Paolone , Melanie Rehfuss , Nikos Sparveris , Frank Cao , Kyungseon Joo , Andrei Kim , N. Markov , Sergio Scopetta , Bryan McKinnon , William Brooks , Ahmed El-Alaoui , Simonetta Liuti , David Jenkins

Catching a glimpse of the parton structure of the bound proton

A new generation of experiments is expected to shed light on the elusive parton structure of the bound proton. One of the most promising directions is incoherent deeply virtual Compton scattering, which can provide a tomographic view of the…

Nuclear Theory · Physics 2020-04-15 Sara Fucini , Sergio Scopetta , Michele Viviani

First Exclusive Measurement of Deeply Virtual Compton Scattering off $^4$He: Toward the 3D Tomography of Nuclei

We report on the first measurement of the beam-spin asymmetry in the exclusive process of coherent deeply virtual Compton scattering off a nucleus. The experiment used the 6 GeV electron beam from the CEBAF accelerator at Jefferson Lab…

Nuclear Experiment · Physics 2017-11-22 M. Hattawy , N. A. Baltzell , R. Dupré , K. Hafidi , S. Stepanyan , S. Bültmann , R. De Vita , A. El Alaoui , L. El Fassi , H. Egiyan , F. X. Girod , M. Guidal , D. Jenkins , S. Liuti , Y. Perrin , B. Torayev , E. Voutier , K. P. Adhikari , S. Adhikari , D. Adikaram , Z. Akbar , M. J. Amaryan , S. Anefalos Pereira , Whitney R. Armstrong , H. Avakian , J. Ball , M. Bashkanov , M. Battaglieri , V. Batourine , I. Bedlinskiy , A. S. Biselli , S. Boiarinov , W. J. Briscoe , W. K. Brooks , V. D. Burkert , Frank Thanh Cao , D. S. Carman , A. Celentano , G. Charles , T. Chetry , G. Ciullo , L. Clark , L. Colaneri , P. L. Cole , M. Contalbrigo , O. Cortes , V. Crede , A. D'Angelo , N. Dashyan , E. De Sanctis , A. Deur , C. Djalali , L. Elouadrhiri , P. Eugenio , G. Fedotov , S. Fegan , R. Fersch , A. Filippi , J. A. Fleming , T. A. Forest , A. Fradi , M. Garçon , N. Gevorgyan , Y. Ghandilyan , G. P. Gilfoyle , K. L. Giovanetti , C. Gleason , W. Gohn , E. Golovatch , R. W. Gothe , K. A. Griffioen , L. Guo , H. Hakobyan , C. Hanretty , N. Harrison , D. Heddle , K. Hicks , M. Holtrop , S. M. Hughes , D. G. Ireland , B. S. Ishkhanov , E. L. Isupov , H. Jiang , K. Joo , S. Joosten , D. Keller , G. Khachatryan , M. Khachatryan , M. Khandaker , A. Kim , W. Kim , A. Klein , F. J. Klein , V. Kubarovsky , S. E. Kuhn , S. V. Kuleshov , L. Lanza , P. Lenisa , K. Livingston , H. Y. Lu , I . J . D. MacGregor , N. Markov , M. Mayer , M. E. McCracken , B. McKinnon , C. A. Meyer , Z. E. Meziani , T. Mineeva , M. Mirazita , V. Mokeev , R. A. Montgomery , H. Moutarde , A Movsisyan , C. Munoz Camacho , P. Nadel-Turonski , L. A. Net , S. Niccolai , G. Niculescu , I. Niculescu , M. Osipenko , A. I. Ostrovidov , M. Paolone , R. Paremuzyan , K. Park , E. Pasyuk , E. Phelps , W. Phelps , S. Pisano , O. Pogorelko , J. W. Price , Y. Prok , D. Protopopescu , M. Ripani , B. G. Ritchie , A. Rizzo , G. Rosner , P. Rossi , F. Sabatié , C. Salgado , R. A. Schumacher , E. Seder , Y. G. Sharabian , A. Simonyan , Iu. Skorodumina , G. D. Smith , D. Sokhan , N. Sparveris , S. Strauch , M. Taiuti , M. Ungaro , H. Voskanyan , N. K. Walford , D. P. Watts , X. Wei , L. B. Weinstein , M. H. Wood , N. Zachariou , L. Zana , J. Zhang , Z. W. Zhao

First Measurement of Deeply Virtual Compton Scattering on the Neutron with Detection of the Active Neutron

Measuring Deeply Virtual Compton Scattering on the neutron is one of the necessary steps to understand the structure of the nucleon in terms of Generalized Parton Distributions (GPDs). Neutron targets play a complementary role to…

High Energy Physics - Experiment · Physics 2024-06-26 CLAS Collaboration , A. Hobart , S. Niccolai , M. Čuić , K. Kumerički , P. Achenbach , J. S. Alvarado , W. R. Armstrong , H. Atac , H. Avakian , L. Baashen , N. A. Baltzell , L. Barion , M. Bashkanov , M. Battaglieri , B. Benkel , F. Benmokhtar , A. Bianconi , A. S. Biselli , S. Boiarinov , M. Bondi , W. A. Booth , F. Bossù , K. -Th. Brinkmann , W. J. Briscoe , W. K. Brooks , S. Bueltmann , V. D. Burkert , T. Cao , R. Capobianco , D. S. Carman , P. Chatagnon , G. Ciullo , P. L. Cole , M. Contalbrigo , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , A. Deur , S. Diehl , C. Dilks , C. Djalali , R. Dupre , H. Egiyan , A. El Alaoui , L. El Fassi , L. Elouadrhiri , S. Fegan , A. Filippi , C. Fogler , K. Gates , G. Gavalian , G. P. Gilfoyle , D. Glazier , R. W. Gothe , Y. Gotra , M. Guidal , K. Hafidi , H. Hakobyan , M. Hattawy , F. Hauenstein , D. Heddle , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , H. Jiang , H. S. Jo , K. Joo , T. Kageya , A. Kim , W. Kim , V. Klimenko , A. Kripko , V. Kubarovsky , S. E. Kuhn , L. Lanza , M. Leali , S. Lee , P. Lenisa , X. Li , I. J. D. MacGregor , D. Marchand , V. Mascagna , M. Maynes , B. McKinnon , Z. E. Meziani , S. Migliorati , R. G. Milner , T. Mineeva , M. Mirazita , V. Mokeev , C. Muñoz Camacho , P. Nadel-Turonski , P. Naidoo , K. Neupane , G. Niculescu , M. Osipenko , P. Pandey , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , S. J. Paul , W. Phelps , N. Pilleux , M. Pokhrel , S. Polcher Rafael , J. Poudel , J. W. Price , Y. Prok , T. Reed , J. Richards , M. Ripani , J. Ritman , P. Rossi , A. A. Golubenko , C. Salgado , S. Schadmand , A. Schmidt , Marshall B. C. Scott , E. M. Seroka , Y. G. Sharabian , E. V. Shirokov , U. Shrestha , N. Sparveris , M. Spreafico , S. Stepanyan , I. I. Strakovsky , S. Strauch , J. A. Tan , N. Trotta , R. Tyson , M. Ungaro , S. Vallarino , L. Venturelli , V. Tommaso , H. Voskanyan , E. Voutier , D. P Watts , X. Wei , R. Williams , M. H. Wood , L. Xu , N. Zachariou , J. Zhang , Z. W. Zhao , M. Zurek

Deeply virtual Compton scattering on longitudinally polarized protons and neutrons at CLAS

This paper focuses on a measurement of deeply virtual Compton scattering (DVCS) performed at Jefferson Lab using a nearly-6-GeV polarized electron beam, two longitudinally polarized (via DNP) solid targets of protons (NH3) and deuterons…

Nuclear Experiment · Physics 2019-08-13 Silvia Niccolai

DVCS at HERA and at CERN

Deeply Virtual Compton Scattering (DVCS) in $ep$ collisions has emerged in recent years as a an essential reaction to obtain information on the correlation of partons in the hadron (proton) or on the transverse distribution of these…

High Energy Physics - Phenomenology · Physics 2009-09-11 Laurent Schoeffel

Deeply Virtual Compton Scattering Beam-Spin Asymmetries

The beam spin asymmetries in the hard exclusive electroproduction of photons on the proton (ep -> epg) were measured over a wide kinematic range and with high statistical accuracy. These asymmetries result from the interference of the…

High Energy Physics - Experiment · Physics 2019-08-13 F. X. Girod , R. A. Niyazov et al

Deeply virtual Compton scattering off the neutron

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…

High Energy Physics - Phenomenology · Physics 2021-09-07 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. Marti Jimenez-Arguello , F. Meddi , D. Meekins , R. Michaels , M. Mihovilovic , N. Muangma , C. Munoz 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. Sabatie , 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

Theoretical study of deeply virtual Compton scattering off $^4$He

An interesting breakthrough in understanding the elusive inner content of nuclear systems in terms of partonic degrees of freedom is represented by deeply virtual Compton scattering processes. In such a way, tomographic view of nuclei and…

Nuclear Theory · Physics 2019-10-22 Sara Fucini , Sergio Scopetta , Michele Viviani

Deeply virtual Compton Scattering off $^4$He

Deeply virtual Compton scattering is a fascinating process which can provide a tomographic view of nuclei and bound nucleons. The first experimental results for $^4$He targets, recently released at Jefferson Lab, have been analyzed here in…

Nuclear Theory · Physics 2021-02-03 Sara Fucini , Sergio Scopetta , Michele Viviani

Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target

Single-beam, single-target, and double-spin asymmetries for hard exclusive photon production on the proton $\vec{e}\vec{p} \to e' p'\gamma$ are presented. The data were taken at Jefferson Lab using the CLAS detector and a longitudinally…

High Energy Physics - Experiment · Physics 2015-03-25 S. Pisano , A. Biselli , S. Niccolai , E. Seder , M. Guidal , M. Mirazita , the CLAS Collaboration

First CLAS12 measurement of DVCS beam-spin asymmetries in the extended valence region

Deeply virtual Compton scattering (DVCS) allows one to probe Generalized Parton Distributions (GPDs) describing the 3D structure of the nucleon. We report the first measurement of the DVCS beam-spin asymmetry using the CLAS12 spectrometer…

High Energy Physics - Experiment · Physics 2022-12-05 CLAS Collaboration , G. Christiaens , M. Defurne , D. Sokhan , P. Achenbach , Z. Akbar , M. J. Amaryan , H. Atac , H. Avakian , C. Ayerbe Gayoso , L. Baashen , N. A. Baltzell , L. Barion , M. Bashkanov , M. Battaglieri , I. Bedlinskiy , B. Benkel , F. Benmokhtar , A. Bianconi , A. S. Biselli , M. Bondi , W. A. Booth , F. Bossù , S. Boiarinov , K. -Th. Brinkmann , W. J. Briscoe , S. Bueltmann , D. Bulumulla , V. D. Burkert , T. Cao , D. S. Carman , J. C. Carvajal , A. Celentano , P. Chatagnon , V. Chesnokov , T. Chetry , G. Ciullo , G. Clash , P. L. Cole , M. Contalbrigo , G. Costantini , A. D'Angelo , N. Dashyan , R. De Vita , A. Deur , S. Diehl , C. Dilks , C. Djalali , R. Dupre , H. Egiyan , M. Ehrhart , A. El Alaoui , L. El Fassi , L. Elouadrhiri , S. Fegan , A. Filippi , K. Gates , G. Gavalian , Y. Ghandilyan , G. P. Gilfoyle , F. X. Girod , D. I. Glazier , A. A. Golubenko , G. Gosta , R. W. Gothe , Y. Gotra , K. A. Griffioen , M. Guidal , K. Hafidi , H. Hakobyan , M. Hattawy , F. Hauenstein , T. B. Hayward , D. Heddle , A. Hobart , D. E. Holmberg , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , H. S. Jo , M. L. Kabir , D. Keller , M. Khachatryan , A. Khanal , W. Kim , A. Kripko , V. Kubarovsky , S. E. Kuhn , V. Lagerquist , L. Lanza , M. Leali , S. Lee , P. Lenisa , X. Li , K. Livingston , I . J . D. MacGregor , D. Marchand , V. Mascagna , G. Matousek , B. McKinnon , C. McLauchlin , Z. E. Meziani , S. Migliorati , R. G. Milner , T. Mineeva , M. Mirazita , V. Mokeev , E. Molina , C. Munoz Camacho , P. Nadel-Turonski , P. Naidoo , K. Neupane , S. Niccolai , M. Nicol , G. Niculescu , M. Osipenko , M. Ouillon , P. Pandey , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , S. J. Paul , W. Phelps , N. Pilleux , M. Pokhrel , J. Poudel , J. W. Price , Y. Prok , A. Radic , N. Ramasubramanian , B. A. Raue , T. Reed , J. Richards , M. Ripani , J. Ritman , P. Rossi , F. Sabatié , C. Salgado , S. Schadmand , A. Schmidt , M. B. C. Scott , Y. G. Sharabian , E. V. Shirokov , U. Shrestha , P. Simmerling , N. Sparveris , M. Spreafico , S. Stepanyan , I. I. Strakovsky , S. Strauch , J. A. Tan , N. Trotta , M. Turisini , R. Tyson , M. Ungaro , S. Vallarino , L. Venturelli , H. Voskanyan , E. Voutier , D. P. Watts , X. Wei , R. Williams , R. Wishart , M. H. Wood , N. Zachariou , J. Zhang , Z. W. Zhao , V. Ziegler , M. Zurek

A Glimpse of Gluons through Deeply Virtual Compton Scattering on the Proton

The proton is composed of quarks and gluons, bound by the most elusive mechanism of strong interaction called confinement. In this work, the dynamics of quarks and gluons are investigated using deeply virtual Compton scattering (DVCS):…

High Energy Physics - Experiment · Physics 2018-02-07 M. Defurne , A. Martì Jiménez-Argüello , Z. Ahmed , H. Albataineh , K. Allada , K. A. Aniol , V. Bellini , M. Benali , W. Boeglin , P. Bertin , M. Brossard , A. Camsonne , M. Canan , S. Chandavar , C. Chen , J. -P. Chen , C. W. de Jager , R. de Leo , C. Desnault , 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 , C. E. Hyde , S. Iqbal , F. Itard , H. 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 , M. Mazouz , F. Meddi , D. Meekins , R. Michaels , M. Mihovilovic , C. Munoz Camacho , P. Nadel-Turonski , N. Nuruzzaman , R. Paremuzyan , 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 , X. Zhan , J. Zhang , B. Zhao , Z. Zhao , X. Zheng , P. Zhu

The experimental challenge of virtual compton scattering above 8 GeV

We discuss the experimental issues confronting measurements of the Virtual Compton Scattering (VCS) reaction ep->ep gamma with electron beam energies 6-30 GeV. We specifically address the kinematics of Deeply Virtual Compton Scattering…

High Energy Physics - Phenomenology · Physics 2008-11-26 P. Y. Bertin , Y. Roblin , C. E. Hyde-Wright

Longitudinal target-spin asymmetries for deeply virtual Compton scattering

A measurement of the electroproduction of photons off protons in the deeply inelastic regime was performed at Jefferson Lab using a nearly 6-GeV electron beam, a longitudinally polarized proton target and the CEBAF Large Acceptance…

High Energy Physics - Experiment · Physics 2015-06-23 E. Seder , A. Biselli , S. Pisano , S. Niccolai , the CLAS Collaboration

Measurement of beam-polarized Deeply Virtual Compton Scattering observables with the CLAS12 detector at Jefferson Lab

In the context of nucleon structure studies, Generalized Parton Distributions (GPDs) are crucial for understanding the correlation between the longitudinal momentum and the transverse position of partons inside the nucleon. A privileged…

High Energy Physics - Experiment · Physics 2025-09-16 J. S. Alvarado , M. Hoballah , E. Voutier

Beam Charge Asymmetries for Deeply Virtual Compton Scattering on the Proton at CLAS12

The parameterization of the nucleon structure through Generalized Parton Distributions (GPDs) shed a new light on the nucleon internal dynamics. For its direct interpretation, Deeply Virtual Compton Scattering (DVCS) is the golden channel…

Nuclear Experiment · Physics 2023-11-14 E. Voutier , V. Burkert , S. Niccolai , R. Paremuzyan , A. Afanasev , J. -S. Alvarado-Galeano , M. Atoui , L. Barion , M. Battaglieri , J. Bernauer , A. Bianconi , M. Bondi , W. Briscoe , A. Camsonne , R. Capobianco , A. Celentano , P. Chatagnon , T. Chetry , G. Ciullo , P. Cole , M. Contalbrigo , G. Costantini , M. Defurne , A. Deur , R. De Vita , S. Diehl , R. Dupré , L. Elouadrhiri , I. Fernando , A. Filippi , T. Forest , F. -X. Girod , G. Gosta , J. Grames , P. Gueye , S. Habet , M. Hattawy , D. Higinbotham , A. Hobart , C. Hyde , K. Joo , A. Kim , V. Klimenko , V. Kubarovsky , M. Leali , P. Lenisa , D. Marchand , L. Marsicano , V. Mascagna , D. Matamoros , M. McCaughan , B. McKinnon , S. Migliorati , H. S. Mitra , A. Movsisyan , C. Muñoz-Camacho , M. Osipenko , M. Ouillon , L. Pappalardo , B. Pasquini , E. Pasyuk , N. Pilleux , M. Poelker , B. Raue , M. Ripani , R. Santos , A. Schmidt , R. Singh , D. Sokhan , M. Spreafico , P. Stoler , I. Strakovsky , M. Taiuti , L. Venturelli , P. -K. Wang , X. Wei , Z. Zhao , the CLAS Collaboration , the Jefferson Lab Positron Working Group