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We present a model to calculate cross sections for electroinduced two-nucleon emission from finite nuclei. Short-range correlations in the wave functions and meson-exchange contributions to the photoabsorption process are implemented.…

The effects of the final state interaction (FSI) in semi inclusive deep inelastic electron scattering processes $A(e,e'p)X$ off nuclei are investigated in details. Proton production is described within the spectator and the target…

Nuclear Theory · Physics 2007-06-13 M. Alvioli , C. Ciofi degli Atti , V. Palli , L. P. Kaptari

Nucleon recoil polarization in electromagnetic reactions with two-nucleon emission is discussed for both (${\vec e},e'{\vec N}N$) and (${\vec \gamma},{\vec N}N$). Numerical results are given for exclusive two-nucleon knockout reactions from…

Nuclear Theory · Physics 2016-09-08 C. Giusti , F. D. Pacati

The treatment of the $\Delta$-current and its contribution in the exclusive $^{16}$O$(e,e'pp)^{14}$C and $^{16}$O$(\gamma,pp)^{14}$C knockout reactions are investigated in combination with the effects of correlations. Different…

Nuclear Theory · Physics 2016-09-08 C. Giusti , F. D. Pacati , M. Schwamb , S. Boffi

We investigate the $\eta'$ photoproduction off the nucleon with a particular interest in the effect of the final-state interaction (FSI) of the $\eta'$ meson and nucleon $(\eta'N)$ based on three-flavor linear sigma model. We find an…

Nuclear Theory · Physics 2017-05-11 Shuntaro Sakai , Atsushi Hosaka , Hideko Nagahiro

We investigate neutrino-nucleus collisions at intermediate energies incorporating quasi-elastic scattering and the excitation of 13 resonances as elementary processes, taking into account medium effects such as Fermi motion, Pauli blocking,…

Nuclear Experiment · Physics 2009-09-29 T. Leitner , O. Buss , U. Mosel , L. Alvarez-Ruso

We investigate the factorization properties of the exclusive electroinduced two-nucleon knockout reaction $A(e,e'pN)$. A factorized expression for the cross section is derived and the conditions for factorization are studied. The…

Nuclear Theory · Physics 2014-02-12 Camille Colle , Wim Cosyn , Maarten Vanhalst , Jan Ryckebusch

Final-state interactions in the response of a many-body system to an external probe delivering large momentum are normally described using the eikonal approximation, for the trajectory of the struck particle, and the frozen approximation,…

Nuclear Theory · Physics 2008-11-26 M. Petraki , E. Mavrommatis , O. Benhar , J. W. Clark , A. Fabrocini , S. Fantoni

The polarization degrees of freedom in photoinduced two-nucleon knockout from finite nuclei are studied. It is pointed out that they open good perspectives to study the dynamics of dinucleons in the medium in detail. The ($\gamma,pp$) and…

Nuclear Theory · Physics 2008-11-26 Jan Ryckebusch , Dimitri Debruyne , Wim Van Nespen

Recent calculations of the effects of hadronization and final state interaction (FSI) in semi-exclusive deep-inelastic scattering (DIS) $A(e,e'(A-1))X$ processes are reviewed. The basic ingredient underlying these calculations, {\it viz}…

Nuclear Theory · Physics 2015-06-26 C. Ciofi degli Atti , L. P. Kaptari , B. Z. Kopeliovich

We investigate neutrino-nucleus collisions at intermediate energies incorporating quasielastic scattering and Delta(1232) excitation as elementary processes, together with Fermi motion, Pauli blocking and mean-field potentials in the…

Nuclear Theory · Physics 2009-11-11 L. Alvarez-Ruso , T. Leitner , U. Mosel

A theoretical description of nucleon knockout reactions initiated by polarized electron scattering from polarized nuclei is presented. Explicit expressions for the complete set of reduced response functions (independent of the polarization…

Nuclear Theory · Physics 2008-11-26 J. E. Amaro , T. W. Donnelly

The modeling of neutrino-nucleus interactions constitutes a challenging source of systematic uncertainty for the extraction of precise values of neutrino oscillation parameters in long-baseline accelerator neutrino experiments. To improve…

We study neutrino-induced nucleon knockout off atomic nuclei and examine the polarization properties of the ejectile. A detailed study of the spin dependence of the outgoing nucleon is presented. The numerical results are derived within a…

Nuclear Theory · Physics 2014-11-18 N. Jachowicz , K. Vantournhout , J. Ryckebusch , K. Heyde

Characterizing the nature of single-particle states outside of double shell closures is essential to a fundamental understanding of nuclear structure. This is especially true for those doubly magic nuclei that lie far from stability and…

Nuclear Experiment · Physics 2017-08-23 Giordano Cerizza

The correlation effects in nuclei owing to which the nuclear wave functions are different from the Slater determinants are studied on the basis of the original theory. The calculated numbers of nucleons out of the nuclear Fermi-surface are…

Nuclear Theory · Physics 2009-11-06 B. L. Birbrair , V. I. Ryazanov

A detailed study of the effect of the $\eta$-nucleus final state interaction (FSI) in the $p d \to ^3$He$ \eta$ reaction close to threshold is presented. The FSI is incorporated through a T-matrix for $\eta ^3$He elastic scattering,…

Nuclear Theory · Physics 2015-06-26 K. P. Khemchandani , N. G. Kelkar , B. K. Jain

The nuclear structure dependence of direct reactions that remove a pair of like or unlike nucleons from a fast $^{12}$C projectile beam are considered. Specifically, we study the differences in the two-nucleon correlations present and the…

Nuclear Theory · Physics 2015-06-05 E. C. Simpson , P. Navrátil , R. Roth , J. A. Tostevin

Effects of strong final-state interactions in the superscaling properties of neutral-current quasielastic neutrino cross sections are investigated using the Relativistic Impulse Approximation as guidance. First- and second-kind scaling are…

Nuclear Theory · Physics 2008-11-26 M. C. Martinez , J. A. Caballero , T. W. Donnelly , J. M. Udias

Correlations in the nuclear wave-function beyond the mean-field or Hartree-Fock approximation are very important to describe basic properties of nuclear structure. Attempts are made to explore details of these correlations in exclusive…

Nuclear Theory · Physics 2007-05-23 H. Müther