Related papers: Deeply Virtual Compton Scattering with CLAS12

COMPASS - a facility to study QCD

An overview on the new COMPASS II experimental programme is presented. The main topics include a study of Primakoff reactions, generalised parton distributions via deeply virtual Compton scattering and transverse momentum dependent…

High Energy Physics - Experiment · Physics 2011-09-14 Eva-Maria Kabuss

Sensitivity of Double Deeply Virtual Compton Scattering observables to GPDs

Generalized Parton Distributions (GPDs) are multidimensonal structure functions that encode the information about the internal structure of hadrons. Using privileged channels such as Deeply Virtual Compton Scattering (DVCS) or Timelike…

Nuclear Experiment · Physics 2024-12-05 J. S. Alvarado , M. Hoballah , E. Voutier

Deeply virtual Compton scattering on a virtual pion target

We study deeply virtual Compton scattering on a virtual pion that is emitted by a proton. Using a range of models for the generalized parton distributions of the pion, we evaluate the cross section, as well as the beam spin and beam charge…

High Energy Physics - Phenomenology · Physics 2008-12-18 Daniela Amrath , Markus Diehl , Jean-Philippe Lansberg

Separation of Soft and Hard Physics in DVCS

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 and DESY. It is shown that poles and perpendicular vector…

High Energy Physics - Phenomenology · Physics 2017-08-23 A. Gardestig , A. P. Szczepaniak , J. T. Londergan

Measurement of Deeply Virtual Compton Scattering and its t-dependence at HERA

A measurement of elastic deeply virtual Compton scattering gamma* p -> gamma p using e-p collision data recorded with the H1 detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 145 pb^-1. The…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

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

Target and Double Spin Asymmetries of Deeply Virtual $\pi^0$ Production with a Longitudinally Polarized Proton Target and CLAS

The target and double spin asymmetries of the exclusive pseudoscalar channel $\vec e\vec p\to ep\pi^0$ were measured for the first time in the deep-inelastic regime using a longitudinally polarized 5.9 GeV electron beam and a longitudinally…

Nuclear Experiment · Physics 2017-03-16 A. Kim , H. Avakian , V. Burkert , K. Joo , W. Kim , K. P. Adhikari , Z. Akbar , S. Anefalos Pereira , R. A. Badui , M. Battaglieri , V. Batourine , I. Bedlinskiy , A. S. Biselli , S. Boiarinov , P. Bosted , W. J. Briscoe , W. K. Brooks , S. Bültmann , T. Cao , D. S. Carman , A. Celentano , S. Chandavar , G. Charles , T. Chetry , L. Colaneri , P. L. Cole , N. Compton , M. Contalbrigo , O. Cortes , V. Crede , A. D'Angelo , N. Dashyan , R. De Vita , E. De Sanctis , C. Djalali , H. Egiyan , A. El Alaoui , L. El Fassi , P. Eugenio , G. Fedotov , R. Fersch , A. Filippi , J. A. Fleming , A. Fradi , M. Garçon , Y. Ghandilyan , G. P. Gilfoyle , K. L. Giovanetti , F. X. Girod , W. Gohn , E. Golovatch , R. W. Gothe , K. A. Griffioen , L. Guo , K. Hafidi , C. Hanretty , M. Hattawy , D. Heddle , K. Hicks , M. Holtrop , Y. Ilieva , D. G. Ireland , B. S. Ishkhanov , D. Jenkins , H. Jiang , H. S. Jo , S. Joosten , D. Keller , G. Khachatryan , M. Khandaker , A. Klein , F. J. Klein , V. Kubarovsky , S. E. Kuhn , S. V. Kuleshov , L. Lanza , P. Lenisa , H. Y. Lu , I . J . D. MacGregor , N. Markov , P. Mattione , M. E. McCracken , B. McKinnon , V. Mokeev , A Movsisyan , E. Munevar , P. Nadel-Turonski , L. A. Net , S. Niccolai , M. Osipenko , A. I. Ostrovidov , M. Paolone , K. Park , E. Pasyuk , W. Phelps , S. Pisano , O. Pogorelko , J. W. Price , Y. Prok , M. Ripani , A. Rizzo , G. Rosner , P. Rossi , P. Roy , C. Salgado , R. A. Schumacher , E. Seder , Y. G. Sharabian , Iu. Skorodumina , G. D. Smith , D. Sokhan , N. Sparveris , S. Stepanyan , P. Stoler , I. I. Strakovsky , S. Strauch , V. Sytnik , M. Taiuti , B. Torayev , M. Ungaro , H. Voskanyan , E. Voutier , D. P. Watts , X. Wei , L. B. Weinstein , N. Zachariou , L. Zana , J. Zhang , I. Zonta

DVCS at HERMES

This talk explores the impact that the Hermes experiment has had regarding knowledge of the Deeply Virtual Compton Scattering process. We discuss the various measurements that Hermes has contributed to the library of DVCS knowledge, with…

High Energy Physics - Experiment · Physics 2015-06-12 Morgan Murray

Resolving kinematic ambiguities in QCD predictions for Deeply Virtual Compton Scattering

The existing QCD predictions for the Deeply Virtual Compton Scattering (DVCS) depend on the convention used for the skewedness parameter and on the reference frame used to define helicity amplitudes. These ambiquities are formally…

High Energy Physics - Phenomenology · Physics 2014-07-04 V. M. Braun , A. N. Manashov , D. Mueller , B. Pirnay

Benchmarks for a Global Extraction of Information from Deeply Virtual Exclusive Scattering

We develop a framework to establish benchmarks for machine learning and deep neural networks analyses of exclusive scattering cross sections (FemtoNet). Within this framework we present an extraction of Compton form factors for deeply…

High Energy Physics - Phenomenology · Physics 2022-07-25 Manal Almaeen , Jake Grigsby , Joshua Hoskins , Brandon Kriesten , Yaohang Li , Huey-Wen Lin , Simonetta Liuti

Measurement of double-spin asymmetries associated with deeply virtual Compton scattering on a transversely polarized hydrogen target

Double-spin asymmetries in exclusive electroproduction of real photons from a transversely polarized hydrogen target are measured with respect to the product of target polarization with beam helicity and beam charge, and with respect to the…

High Energy Physics - Experiment · Physics 2011-09-16 The HERMES Collaboration , A. Airapetian , N. Akopov , Z. Akopov , E. C. Aschenauer , W. Augustyniak , R. Avakian , A. Avetissian , E. Avetisyan , S. Belostotski , N. Bianchi , H. P. Blok , A. Borissov , J. Bowles , I. Brodski , V. Bryzgalov , J. Burns , M. Capiluppi , G. P. Capitani , E. Cisbani , G. Ciullo , M. Contalbrigo , P. F. Dalpiaz , W. Deconinck , R. De Leo , L. De Nardo , E. De Sanctis , P. Di Nezza , M. Dueren , M. Ehrenfried , G. Elbakian , F. Ellinghaus , R. Fabbri , A. Fantoni , L. Felawka , S. Frullani , D. Gabbert , G. Gapienko , V. Gapienko , F. Garibaldi , G. Gavrilov , V. Gharibyan , F. Giordano , S. Gliske , M. Golembiovskaya , M. Hartig , D. Hasch , M. Hoek , Y. Holler , I. Hristova , Y. Imazu , A. Ivanilov , H. E. Jackson , H. S. Jo , S. Joosten , R. Kaiser , G. Karyan , T. Keri , E. Kinney , A. Kisselev , V. Korotkov , V. Kozlov , P. Kravchenko , V. G. Krivokhijine , L. Lagamba , L. Lapikas , I. Lehmann , P. Lenisa , A. Lopez Ruiz , W. Lorenzon , X. -G. Lu , X. -R. Lu , B. -Q. Ma , D. Mahon , N. C. R. Makins , S. I. Manaenkov , L. Manfre , Y. Mao , B. Marianski A. Martinez de la Ossa , H. Marukyan , C. A. Miller , Y. Miyachi , A. Movsisyan , M. Murray , A. Mussgiller , E. Nappi , Y. Naryshkin , A. Nass , M. Negodaev , W. -D. Nowak , L. L. Pappalardo , R. Perez-Benito , M. Raithel , P. E. Reimer , A. R. Reolon , C. Riedl , K. Rith , G. Rosner , A. Rostomyan , J. Rubin , D. Ryckbosch , Y. Salomatin , A. Schaefer , G. Schnell , K. P. Schueler , B. Seitz , T. -A. Shibata , V. Shutov , M. Stancari , M. Statera , E. Steffens , J. J. M. Steijger , F. Stinzing , S. Taroian , A. Terkulov , R. Truty , A. Trzcinski , M. Tytgat , Y. Van Haarlem , C. Van Hulse , D. Veretennikov , V. Vikhrov , I. Vilardi , S. Wang , S. Yaschenko , Z. Ye , S. Yen , V. Zagrebelnyy , D. Zeiler , B. Zihlmann , P. Zupranski

Beam Spin Asymmetries in DVCS with CLAS at 4 .8 GeV

We report measurements of the beam spin asymmetry in Deeply Virtual Compton Scattering (DVCS) at an electron beam energy of 4.8 GeV using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The DVCS beam spin asymmetry…

High Energy Physics - Experiment · Physics 2019-08-13 G. Gavalian

Measurement of Deeply Virtual Compton Scattering with a Polarized Proton Target

The longitudinal target-spin asymmetry A_UL for the exclusive electroproduction of high energy photons was measured for the first time in p(e,e'p\gamma). The data have been accumulated at Jefferson Lab with the CLAS spectrometer using 5.7…

High Energy Physics - Experiment · Physics 2010-04-06 S. Chen , H. Avakian , V. Burkert , P. Eugenio , the CLAS collaboration

Assessing the impact of the electron ion collider in China on Deeply Virtual Compton Scattering

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

High energy DVCS on a photon and related meson exclusive production

In this work we estimate the differential cross section for the high energy deeply virtual Compton scattering on a photon target within the QCD dipole-dipole scattering formalism. For the phenomenology, a saturation model for the…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. V. T. Machado

The $t$-dependence of the pure DVCS cross section at COMPASS

The key reactions to study the Generalised Parton Distributions are Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP). At COMPASS, these processes are investigated using a high intensity muon beam with a…

High Energy Physics - Experiment · Physics 2017-02-22 P. Joerg

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

Taming Deeply Virtual Compton Scattering

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

Measurement of azimuthal asymmetries associated with deeply virtual Compton scattering on an unpolarized deuterium target

Azimuthal asymmetries in exclusive electroproduction of a real photon from an unpolarized deuterium target are measured with respect to beam helicity and charge. They appear in the distribution of these photons in the azimuthal angle phi…

High Energy Physics - Experiment · Physics 2014-11-20 The HERMES Collaboration , A. Airapetian

Virtual Compton Scattering off the nucleon

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