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We extend the QCD Parton Model analysis by employing a factorized nuclear structure model that explicitly accounts for both individual nucleons and correlated nucleon pairs. This novel framework establishes a paradigm that directly links…

High Energy Physics - Phenomenology · Physics 2025-11-20 Fredrick Olness

Generalized Parton Distributions (GPDs) offer a new way to access the quark and gluon nucleon structure. We advocate the need to supplement the experimental study of deeply virtual Compton scattering by its crossed version, timelike Compton…

High Energy Physics - Phenomenology · Physics 2011-11-28 B. Pire , L. Szymanowski , J. Wagner

The new parameterization of the generalized parton distributions t-dependence is proposed. It allows one to reproduce sufficiently well the electromagnetic form factors of the proton and neutron at small and large momentum transfer. The…

High Energy Physics - Phenomenology · Physics 2009-02-20 O. V. Selyugin , O. V. Teryaev

Generalized Parton Distributions (GPDs) offer a new way to access the quark and gluon nucleon structure. We review recent progress in this domain, emphasizing the need to supplement the experimental study of deeply virtual Compton…

High Energy Physics - Phenomenology · Physics 2011-09-05 B. Pire , K. Semenov-Tian-Shansky , L. Szymanowski , J. Wagner

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

Transition generalized parton distributions (GPDs) describe matrix elements of nonlocal partonic QCD operators between the ground and excited baryon states and provide new tools for quantifying and interpreting the structure of baryon…

High Energy Physics - Phenomenology · Physics 2025-09-03 Kirill Semenov-Tian-Shansky

We review briefly the physical concept of generalized parton distributions and the experimental challenges associated with the corresponding measurements of deep exclusive reactions.The first data obtained at Jefferson Lab for exclusive…

High Energy Physics - Experiment · Physics 2014-11-17 Michel Garçon

We review recent developments in the theoretical investigation of the nucleon polarizabilities. We first report on the static polarizabilities as measured in real Compton scattering, comparing and interpreting the results from various…

High Energy Physics - Phenomenology · Physics 2012-01-17 B. Pasquini , D. Drechsel , M. Vanderhaeghen

I review the LHPC Collaboration's lattice QCD calculations of the generalized parton distributions of the nucleon and highlight those aspects of nucleon structure best illuminated by lattice QCD, the nucleon's spin decomposition and…

High Energy Physics - Lattice · Physics 2008-11-26 D. B. Renner

Generalized Parton Distributions (GPDs) have emerged over the 1990s as a powerful concept and tool to study nucleon structure. They provide nucleon tomography from the correlation between transverse position and longitudinal momentum of…

High Energy Physics - Phenomenology · Physics 2021-02-03 Shengying Zhao , Eric Voutier

A survey is given on the present knowledge of the polarized parton distribution functions. We give an outlook for further developments desired both on the theoretical as well on the experimental side to complete the understanding of the…

High Energy Physics - Phenomenology · Physics 2007-08-13 Johannes Blümlein

A non-perturbative approach to Generalized Parton Distributions, and to Deeply Virtual Compton Scattering in particular, based on off mass shell extension of dual amplitudes with Mandelstam analyticity (DAMA) is developed with the spin and…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Fiore , A. Flachi , L. L. Jenkovszky , A. Lengyel , V. K. Magas

By introducing ansatz and using a PDF at the $N^3LO$ approximation in this paper, we have studied the structure of the nucleons in generalized parton distributions (GPDs). For this purpose, the form factors and the electric radius of…

High Energy Physics - Phenomenology · Physics 2024-11-13 Hossein Vaziri , Mohammad Reza Shojaei

The measurement of nuclear generalized parton distributions (GPDs) in hard exclusive processes, such as deeply virtual Compton Scattering (DVCS), will be one of the main achievements of a new generation of experiments at high luminosity,…

Nuclear Theory · Physics 2021-02-03 Sara Fucini , Matteo Rinaldi , Sergio Scopetta

Nucleon structure functions, as measured in lepton-nucleon scattering, have historically provided a critical observable in the study of partonic dynamics within the nucleon. However, at very large parton momenta it is both experimentally…

High Energy Physics - Experiment · Physics 2025-07-30 Debaditya Biswas , Fernando Araiza Gonzalez , William Henry , Abishek Karki , Casey Morean , Sooriyaarachchilage Nadeeshani , Abel Sun , Daniel Abrams , Zafar Ahmed , Bashar Aljawrneh , Sheren Alsalmi , George Ambrose , Whitney Armstrong , Arshak Asaturyan , Kofi Assumin-Gyimah , Carlos Ayerbe Gayoso , Anashe Bandari , Samip Basnet , Vladimir Berdnikov , Hem Bhatt , Deepak Bhetuwal , Werner Boeglin , Peter Bosted , Edward Brash , Masroor Bukhari , Haoyu Chen , Jian-Ping Chen , Mingyu Chen , Michael Eric Christy , Silviu Covrig Dusa , Kayla Craycraft , Samuel Danagoulian , Donal Day , Markus Diefenthaler , Mongi Dlamini , James Dunne , Burcu Duran , Dipangkar Dutta , Rolf Ent , Rory Evans , Howard Fenker , Nadia Fomin , Eric Fuchey , David Gaskell , Thir Narayan Gautam , Jens-Ole Hansen , Florian Hauenstein , A. Hernandez , Tanja Horn , Garth Huber , Mark Jones , Sylvester Joosten , Md Latiful Kabir , Cynthia Keppel , Achyut Khanal , Paul King , Edward Kinney , Michael Kohl , Nathaniel Lashley-Colthirst , Shujie Li , Wenliang Li , Anusha Habarakada Liyanage , David Mack , Simona Malace , Pete Markowitz , John Matter , David Meekins , Robert Michaels , Arthur Mkrtchyan , Hamlet Mkrtchyan , Zae Moore , S. J. Nazeer , Shirsendu Nanda , Gabriel Niculescu , Maria Niculescu , Huong Nguyen , Nuruzzaman Nuruzzaman , Bishnu Pandey , Sanghwa Park , Eric Pooser , Andrew Puckett , Melanie Rehfuss , Joerg Reinhold , Bradley Sawatzky , G. Smith , Holly Szumila-Vance , Arun Tadepalli , Vardan Tadevosyan , Richard Trotta , Stephen Wood , Carlos Yero , Jinlong Zhang

We present a comprehensive study of the lowest moments of nucleon generalized parton distributions in N_f=2+1 lattice QCD using domain wall valence quarks and improved staggered sea quarks. Our investigation includes helicity dependent and…

A short review of form factors, parton distribution functions and generalized parton distributions is given. A possible application of generalized parton distributions in the weak sector is discussed.

High Energy Physics - Phenomenology · Physics 2007-05-23 Ales Psaker

The distribution of the spin of the nucleon among its constituents can be parametrized in the form of polarized parton distribution functions for quarks and gluons. Using all available data on the polarized structure function $g_1(x,Q^2)$,…

High Energy Physics - Phenomenology · Physics 2014-11-17 T. Gehrmann , W. J. Stirling

We investigate deep inelastic lepton scattering from the nucleon within a constituent quark picture, in which the internal structure of constituent quarks is modeled by meson and diquark dressing. In a covariant framework this structure…

Nuclear Theory · Physics 2009-10-28 W. Melnitchouk , W. Weise

The new parameterization of the Generalized Parton Distributions (GPDs) t-dependence is investigated. It is shown that the new form of the GPDS allows one to reproduce sufficiently well the electromagnetic form factors of the proton and…

High Energy Physics - Phenomenology · Physics 2013-03-25 O. V. Selyugin