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Related papers: Proton Shell Structure

200 papers

In this paper an introduction to the physics of deep-inelastic scattering is given together with an account of some of the most recent results on the proton structure obtained in electron-- and positron--proton collisions at the HERA…

High Energy Physics - Experiment · Physics 2010-12-13 Cristinel Diaconu

The proton spin budget is discussed. Results are presented from inclusive and semi-inclusive deep inelastic scattering and from deeply virtual Compton scattering. They permit interpretations towards the determination of various…

High Energy Physics - Phenomenology · Physics 2009-11-13 Wolf-Dieter Nowak

The differential cross section of exclusive diffractive vector meson production in electron proton collisions carries important information on the geometric structure of the proton. More specifically, the coherent cross section as a…

High Energy Physics - Phenomenology · Physics 2016-09-07 Heikki Mäntysaari , Björn Schenke

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…

Effect of the quark intrinsic motion on the proton spin structure functions is demonstrated. It is shown, that the covariant version of the quark-parton model taking into account the orbital motion gives the consistent picture of the proton…

High Energy Physics - Phenomenology · Physics 2007-05-23 Petr Zavada

Since the announcement of the proton spin crisis by the European Muon Collaboration there has been considerable progress in unravelling the distribution of spin and orbital angular momentum within the proton. We review the current status of…

High Energy Physics - Phenomenology · Physics 2009-08-03 A. W. Thomas

Understanding the differences between the distribution of quarks bound in protons and neutrons is key for constraining the mechanisms of SU(6) spin-flavor symmetry breaking in Quantum Chromodynamics (QCD). While vast amounts of proton…

High Energy Physics - Phenomenology · Physics 2021-04-16 E. P. Segarra , J. R. Pybus , F. Hauenstein , T. Kutz , D. Higinbotham , G. A. Miller , E. Piasetzky , A. Schmidt , M. Strikman , L. B. Weinstein , O. Hen

A model for elastic scattering of protons at high energies based on the quark-diquark representation of the proton is discussed. The predictions of the model are compared with experimental data for the differential elastic cross-sections…

High Energy Physics - Phenomenology · Physics 2015-06-12 V. M. Grichine , N. I. Starkov , N. P. Zotov

We present a theoretical and experimental study of the fragmentation of closed thin shells made of a disordered brittle material. Experiments were performed on brown and white hen egg-shells under two different loading conditions: impact…

Disordered Systems and Neural Networks · Physics 2011-03-28 Falk Wittel , Ferenc Kun , Hans J. Herrman , Bernt H. Kroplin

This dissertation investigated selected processes involving baryons and nuclei in hard scattering reactions. Through these processes, this work explored the constituent structure of baryons and the mechanisms through which the interactions…

Nuclear Theory · Physics 2011-08-26 Carlos G. Granados

The present knowledge of the structure of the photon is presented with emphasis on measurements of the photon structure obtained from deep inelastic electron-photon scattering at e+e- colliders. This review covers the leptonic and hadronic…

High Energy Physics - Experiment · Physics 2014-11-17 Richard Nisius

We study elastic proton-nucleus scattering at intermediate energies. The nucleon-nucleus optical potential is derived from the Bonn nucleon-nucleon potential and the Dirac-Brueckner approach for nuclear matter. Our calculations, which do…

Nuclear Theory · Physics 2008-11-26 G. Q. Li , R. Machleidt , R. Fritz , H. Müther , Y. Z. Zhuo

The deuteron-proton elastic scattering has been studied in the multiple scattering expansion formalism. The essential attention has been given to such relativistic problem as a deuteron wave function in a moving frame and transformation of…

Nuclear Theory · Physics 2009-01-26 N. B. Ladygina

We determine, based on the latest experimental Deep Virtual Compton Scattering experimental data, the dependence of the spatial size of the proton on the quark's longitudinal momentum. This results in a three-dimensional momentum-space…

High Energy Physics - Phenomenology · Physics 2017-01-18 Raphael Dupre , Michel Guidal , Marc Vanderhaeghen

Background: Whether or not the $\alpha$ ($^4$He nucleus) clustering exists in the medium-mass region of nuclear systems is a fundamental and intriguing question. However, the recent analysis of the $\alpha$ knockout reaction on $^{48}$Ti…

Nuclear Theory · Physics 2024-03-05 M. Okada , W. Horiuchi , N. Itagaki

We study electromagnetic form factors of protons in proton-nucleus scattering via analysing of experimental cross-sections of accompanying bremsstrahlung photons. A new bremsstrahlung model for proton-nucleus scattering is developed, where…

Nuclear Theory · Physics 2024-04-22 Sergei P. Maydanyuk , Li-Ping Zou , Peng-Ming Zhang

The deuteron-proton elastic scattering is studied in the multiple scattering expansion formalism. The contributions of the one-nucleon-exchange, single- and double scattering are taken into account. The Love and Franey parameterization of…

Nuclear Theory · Physics 2009-11-05 N. B. Ladygina

The behavior of the nucleon structure functions in lepton nuclei deep inelastic scattering, both polarized and unpolarized, due to nuclear structure effects is reanalyzed. The study is performed in two schemes: an x-rescaling approach, and…

High Energy Physics - Phenomenology · Physics 2015-06-19 H. Fanchiotti , C. A. García-Canal , T. Tarutina , V. Vento

We investigate an idea, how to use analysis of the bremsstrahlung photons to study the internal structure of proton under nuclear reaction with nucleus. A new model is constructed to describe bremsstrahlung emission of photons which…

Nuclear Theory · Physics 2019-06-12 Sergei P. Maydanyuk , Peng-Ming Zhang , Li-Ping Zou

The projection onto the Light-Front of a Minkowski space Faddeev-Bethe-Salpeter equation model truncated at the valence level is applied to study the proton structure with constituent quarks. The dynamics of the model has built-in: (i) a…

High Energy Physics - Phenomenology · Physics 2023-02-22 Emanuel Ydrefors , Tobias Frederico