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Modern spectroscopic experiments in few-electron atoms reached the level of precision at which an accurate description of quantum electrodynamics (QED) effects is mandatory. In many cases, theoretical treatment of QED effects has to be…

Atomic Physics · Physics 2020-05-12 Vladimir A. Yerokhin , Anna V. Maiorova

The foundation of the local energy-density functional method to describe the nuclear ground-state properties is given. The method is used to investigate differential observables such as the odd-even mass differences and odd-even effects in…

Nuclear Theory · Physics 2009-11-07 S. A. Fayans , S. V. Tolokonnikov , E. L. Trykov , D. Zawischa

A model for the description of photonuclear reactions in the multi-GeV range is described that combines the coherent initial state interactions (shadowing) of the incoming photon with an incoherent coupled channel description of final state…

Nuclear Theory · Physics 2007-05-23 Ulrich Mosel

The Glauber approach to the gluon density in a nucleus, suggested by A. Mueller, is developed and studied in detail. Using the GRV parameterization for the gluon density in a nucleon, the value as well as energy and $Q^2$ dependence of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. L. Ayala , M. B. Gay Ducati , E. M. Levin

Due to the Heisenberg uncertainty principle, various classical systems differing only on the scale smaller than Planck's cell correspond to the same quantum system. This fact is used to find a unique semiclassical representation without the…

Quantum Physics · Physics 2009-11-10 Jiri Vanicek

Modern X-ray spectroscopy has proven itself as a robust tool for probing the electronic structure of atoms in complex environments. Despite working on energy scales that are much larger than those corresponding to nuclear motions, taking…

Chemical Physics · Physics 2017-06-28 Sven Karsten , Sergey I. Bokarev , Saadullah G. Aziz , Sergei D. Ivanov , Oliver Kühn

The gluon distribution in nuclei plays a pivotal role in understanding quantum chromodynamics (QCD) under extreme nuclear environments, yet remains poorly constrained compared to quark distributions. Coherent \jpsi photoproduction in…

High Energy Physics - Phenomenology · Physics 2025-02-14 Pengzhong Lu , Zebo Tang , Xin Wu , Wangmei Zha

The Glauber approximation is used to calculate the contribution of nucleon correlations in high-energy $A(e,e'N)$ reactions. When the excitation energy of the residual nucleus is small, the increase of the nuclear transparency due to…

Nuclear Theory · Physics 2016-09-08 L. L. Frankfurt , E. J. Moniz , M. M. Sargsyan , M. I. Strikman

We present a unified description of nuclear deep inelastic scattering (DIS) over the whole region $0<x<1$ of the Bjorken variable. Our approach is based on a relativistically covariant formalism which uses analytical properties of quark…

Nuclear Theory · Physics 2009-09-25 S. A. Kulagin , G. Piller , W. Weise

An ab-initio calculation scheme for finite nuclei based on self-consistent Green's functions in the Gorkov formalism is developed. It aims at describing properties of doubly-magic and semi-magic nuclei employing state-of-the-art microscopic…

Nuclear Theory · Physics 2015-05-30 V. Soma , T. Duguet , C. Barbieri

Parity-violating electron scattering provides a model-independent determination of the nuclear weak-charge form factor that has widespread implications across such diverse areas as fundamental symmetries, nuclear structure, heavy-ion…

Nuclear Theory · Physics 2015-06-16 P. -G. Reinhard , J. Piekarewicz , W. Nazarewicz , B. K. Agrawal , N. Paar , X. Rocca-Maza

We demonstrate how the virtual photoproduction of vector mesons on nuclei scans the wave function of vector mesons from the large non-perturbative transverse size $\rho \sim R_{V}$ down to the small perturbative size $\rho \sim…

High Energy Physics - Phenomenology · Physics 2009-10-22 B. Z. Kopeliovich , J. Nemchick , N. N. Nikolaev , B. G. Zakharov

In this paper we analyze nuclear medium effects on DVCS amplitudes in the $\Bx$ range of $0.1-0.0001$ for a large range of $Q^2$ and four different nuclei. We use our nucleon GPD model capable of describing all currently available DVCS data…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Freund , M. Strikman

While current nuclear parton distribution functions (nPDFs) from global fits to experimental data are spatially homogeneous, many experimental observables in nucleus-nucleus collisions are presented in terms of centrality cuts. These cuts…

High Energy Physics - Phenomenology · Physics 2010-07-01 Adeola Adeluyi , Trang Nguyen , Bao-An Li

Equation for the sum of BFKL pomeron fan diagrams is rederived by direct summation and solved numerically for rapidities $y\leq 50$. At high rapidities y>20 the resulting cross-sections for the scattering of a longitudinally polarized…

High Energy Physics - Phenomenology · Physics 2011-09-13 M. A. Braun

The transverse momentum distribution of prompt photons coming from the very early phase of ultrarelativistic heavy ion collisions for the RHIC and LHC energies is calculated by means of perturbative QCD. We calculate the single photon cross…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. Hammon , A. Dumitru , H. Stoecker , W. Greiner

We consider a microscopy setting where quantum light is used for illumination. Spontaneous parametric down conversion (SPDC) is used as a source of a heralded single photon, which is quantum light prepared in a Fock state. We present…

Quantum Physics · Physics 2023-06-08 Maria Gieysztor , Joshua Nepinak , Christopher J. Pugh , Piotr Kolenderski

We explore how nuclear modifications to the free nucleon structure functions (also known as shadowing) affect heavy quark production in collisions at different impact parameters. We assume that the nuclear modifications arise from a density…

Nuclear Theory · Physics 2014-11-18 V. Emel'yanov , A. Khodinov , S. R. Klein , R. Vogt

We calculate, in the Glauber-Mueller approach, the ratio of the diffractive dissociation cross section to the total cross section on nuclei. We observe that shadowing corrections (SC) are significant, in the calculated $\ddt$ ratio but they…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. Gotsman , E. Levin , M. Lublinsky , U. Maor , K. Tuchin

New data from HERA experiment on (diffractive) deep inelastic scattering has been used to parameterize nucleon and Pomeron structure functions. Within the Gribov theory, the parameterizations were employed to calculate gluon shadowing for…

High Energy Physics - Phenomenology · Physics 2011-09-13 K. Tywoniuk , I. C. Arsene , L. Bravina , A. B. Kaidalov , E. Zabrodin