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We use gauge/gravity duality to study deeply virtual Compton scattering (DVCS) in the limit of high center of mass energy at fixed momentum transfer, corresponding to the limit of low Bjorken x, where the process is dominated by the…

High Energy Physics - Theory · Physics 2013-05-30 Miguel S. Costa , Marko Djurić

A model for deeply virtual Compton scattering, based on analytical light-cone hadron wave functions is presented and studied at energies currently accessible at Jefferson Laboratory, DESY, and beyond. It is shown that perpendicular vector…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Gardestig , A. P. Szczepaniak , J. T. Londergan

We systematically evaluate observables for hard exclusive electroproduction of real photons and compare them to experiment using a set of Generalized Parton Distributions (GPDs) whose parameters are constrained by Deeply Virtual Meson…

High Energy Physics - Phenomenology · Physics 2025-01-08 Peter Kroll , Hervé Moutarde , Franck Sabatié

We study the nonforward Compton scattering in particular the deeply virtual Compton scattering from AdS/CFT. We first calculate the contributions from the s-channel and u-channel supergravity diagrams as well as the four point interaction…

High Energy Physics - Phenomenology · Physics 2010-05-21 Jian-Hua Gao , Bo-Wen Xiao

We calculate spin, charge, and azimuthal asymmetries in deeply virtual Compton scattering at leading twist-two level. The measurement of these asymmetries gives an access to the imaginary and real part of all deeply virtual Compton…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. V. Belitsky , D. Müller , L. Niedermeier , A. Schäfer

In this prize talk, I recall some of the history surrounding the discovery of deeply virtual Compton scattering, and explain why it is an exciting experimental tool to obtain novel tomographic pictures of the nucleons at Jefferson Lab 12…

High Energy Physics - Phenomenology · Physics 2016-05-05 Xiangdong Ji

The two-tensor-pomeron model is applied to deeply virtual Compton scattering (DVCS) on a proton. A good description of the DVCS HERA data at small Bjorken-$x$ is achieved due to a sizeable interference of soft and hard pomeron…

High Energy Physics - Phenomenology · Physics 2023-04-05 Piotr Lebiedowicz , Antoni Szczurek , Otto Nachtmann

We consider deeply virtual Compton scattering and deep inelastic scattering in presence of Regge exchanges that are part of the non-perturbative quark-nucleon amplitude. In particular we discuss contribution from the Pomeron exchange and…

High Energy Physics - Phenomenology · Physics 2014-11-20 M. Gorchtein , A. P. Szczepaniak

Motivated by developments at HIGS at TUNL that include increased photon flux and the ability to circularly polarize photons, we calculate several beam-polarization/target-spin dependent observables for elastic Compton scattering on the…

Nuclear Theory · Physics 2008-11-26 Deepshikha Choudhury , Daniel R. Phillips

Measurements of Deeply Virtual Compton Scattering (DVCS) are presented using data collected by the H1 and ZEUS experiments at HERA. The transition from a virtual photon to an on-shell particle is expected to necessitate the use of skewed…

High Energy Physics - Experiment · Physics 2007-05-23 D. P. Brown

We utilize the DVCS asymmetry measurements of the HERMES collaboration for access to Compton form factors in the deeply virtual regime and to generalized parton distributions. In particular, the (almost) complete measurement of DVCS…

High Energy Physics - Phenomenology · Physics 2015-06-12 Kresimir Kumericki , Dieter Mueller , Morgan Murray

Developments in deeply virtual Compton scattering allow the direct measurements of scattering amplitudes for exchange of a highly virtual photon with fine spatial resolution. Real-space images of the target can be obtained from this…

High Energy Physics - Phenomenology · Physics 2014-11-17 John P. Ralston , Bernard Pire

We study recent Deeply Virtual Compton scattering (DVCS) data within a dual parameterization of the Generalized Parton Distributions (GPDs). This parameterization allows to quantify the maximum amount of information, that can be extracted…

High Energy Physics - Phenomenology · Physics 2008-03-18 Maxim V. Polyakov , Marc Vanderhaeghen

The amplitude of a Compton-like process nu_i gamma^* -> nu_j gamma^* with virtual photons is calculated in the standard GWS theory with lepton mixing. The contribution of this process to the high energy neutrino scattering on the nucleus…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. V. Kuznetsov , N. V. Mikheev

We assess the impact of future measurements of deeply virtual Compton scattering (DVCS) off protons using the planned detector at the Electron-Ion Collider in China (EicC), proposed as an upgrade to the High Intensity heavy-ion Accelerator…

High Energy Physics - Phenomenology · Physics 2026-05-26 Yuan-Yuan Huang , Xu Cao , Taifu Feng , Krešimir Kumerički , Yu Lu

We investigate the deeply virtual Compton scattering (DVCS) in the color dipole approach, implementing the dipole cross section through the saturation model, which interpolates successfully between soft and hard regimes. The imaginary and…

High Energy Physics - Phenomenology · Physics 2011-09-13 L. Favart , M. V. T. Machado

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

We report on the measurement of the beam spin asymmetry in the deeply virtual Compton scattering off $^4$He using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab using a 6 GeV longitudinally polarized electron beam incident…

Nuclear Experiment · Physics 2021-08-18 R. Dupré , M. Hattawy , N. A. Baltzell , S. Bültmann , R. De Vita , A. El Alaoui , L. El Fassi , H. Egiyan , F. X. Girod , M. Guidal , K. Hafidi , D. Jenkins , S. Liuti , Y. Perrin , S. Stepanyan , B. Torayev , E. Voutier , M. J. Amaryan , W. R. Armstrong , H. Atac , C. Ayerbe Gayoso , L. Barion , M. Battaglieri , I. Bedlinskiy , F. Benmokhtar , A. Bianconi , A. S. Biselli , M. Bondi , F. Bossù , S. Boiarinov , W. J. Briscoe , D. Bulumulla , V. Burkert , D. S. Carman , J. C. Carvajal , M. Caudron , A. Celentano , P. Chatagnon , V. Chesnokov , T. Chetry , G. Ciullo , B. A. Clary , P. L. Cole , M. Contalbrigo , G. Costantini , V. Crede , A. D'Angelo , N. Dashyan , M. Defurne , A. Deur , S. Diehl , C. Djalali , M. Ehrhart , L. Elouadrhiri , P. Eugenio , S. Fegan , A. Filippi , T. A. Forest , Y. Ghandilyan , G. P. Gilfoyle , R. W. Gothe , K. A. Griffioen , H. Hakobyan , T. B. Hayward , K. Hicks , A. Hobart , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , H. S. Jo , K. Joo , S. Joosten , D. Keller , G. Khachatryan , A. Khanal , M. Khandaker , A. Kim , W. Kim , A. Kripko , V. Kubarovsky , S. E. Kuhn , L. Lanza , K. Livingston , M. L. Kabir , M. Leali , P. Lenisa , I. J. D. MacGregor , D. Marchand , N. Markov , V. Mascagna , M. Mayer , B. McKinnon , M. Mirazita , V. I. Mokeev , K. Neupane , S. Niccolai , T. R. O'Connell , M. Osipenko , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , D. Payette , W. Phelps , N. Pivnyuk , O. Pogorelko , J. Poudel , Y. Prok , M. Ripani , J. Ritman , A. Rizzo , G. Rosner , P. Rossi , J. Rowley , F. Sabatié , C. Salgado , A. Schmidt , R. Schumacher , V. Sergeyeva , Y. Sharabian , U. Shrestha , D. Sokhan , O. Soto , N. Sparveris , I. I. Strakovsky , S. Strauch , N. Tyler , M. Ungaro , L. Venturelli , H. Voskanyan , A. Vossen , D. Watts , K. Wei , X. Wei , L. B. Weinstein , R. Wishart , M. H. Wood , B. Yale , N. Zachariou , J. Zhang

We propose a new way to experimentally determine the subleading low-energy structure constant of doubly-virtual Compton scattering on a proton. Such empirical determination will reduce the theoretical model error in estimates of the…

High Energy Physics - Phenomenology · Physics 2020-09-16 Vladyslav Pauk , Carl E. Carlson , Marc Vanderhaeghen

We review the recent developments of virtual Compton scattering. We focus on the kinematical regimes which look the most promising. The threshold regime gives access to the generalized polarizabilities of the proton. The hard scattering…

High Energy Physics - Phenomenology · Physics 2016-09-06 P. A. M. Guichon , M. Vanderhaeghen
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