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The relativistic mean field approach is applied to the description of coincidence $A(e,e'p)B$ reactions where both the incident electron beam and knockout proton are polarized. Effects introduced by the dynamical enhancement of the lower…

Nuclear Theory · Physics 2016-08-16 M. C. Martínez , J. A. Caballero , T. W. Donnelly

The two nucleon emission process from ^3He, ^3He(e,e'N_2N_3)N_1, has been theoretically analyzed using realistic three-nucleon wave functions and taking the final state interaction into account. Various kinematical conditions have been…

Nuclear Theory · Physics 2007-05-23 C. Ciofi degli Atti , L. P. Kaptari

We outline a relativistic and unfactorized framework to treat the final-state interactions in quasi-elastic A(e,e'p) reactions for four-momentum transfers Q$^{2} \gtrsim 0.3$ (GeV/c)$^{2}$. The model, which relies on the eikonal…

Nuclear Theory · Physics 2009-11-07 D. Debruyne , J. Ryckebusch , S. Janssen , T. Van Cauteren

The two nucleon emission process off ^3He induced by medium energy electrons has been theoretically analyzed using realistic three-nucleon wave functions and taking the final state interaction into account. Various kinematical conditions…

Nuclear Theory · Physics 2016-09-08 C. Ciofi degli Atti , L. P. Kaptari

I examine the role of final state interactions in cold nuclear matter in modifying hadron production on nuclear targets with leptonic or hadronic beams. I demonstrate the extent to which available experimental data in electron-nucleus…

Nuclear Theory · Physics 2008-11-26 Alberto Accardi

We use the Paris nucleon-antinucleon optical potential for explanation of experimental data in the process $e^+e^- \to p\bar p$ near threshold. It is shown that the cross section and the electromagnetic form factors are very sensitive to…

Nuclear Theory · Physics 2008-11-26 V. F. Dmitriev , A. I. Milstein

It is shown that the effects of the Final State Interaction (FSI) in the exclusive processes 3He(e,e'p)2H and 3He(e,e'p)(pn), can be successfully treated in terms of a Generalized Eikonal Approximation (GEA), based upon the direct…

Nuclear Theory · Physics 2009-11-11 C. Ciofi degli Atti , L. P. Kaptari

I shortly review the present status of the theoretical estimates of eps'/eps. I consider a few aspects of the theoretical calculations which may be relevant in understanding the present experimental results. In particular, I discuss the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stefano Bertolini

An {\it ab initio} calculation of the $^4$He$(e,e^\prime p)^3$H longitudinal response is presented. The use of the integral transform method with a Lorentz kernel has allowed to take into account the full four--body final state interaction…

Nuclear Theory · Physics 2009-11-11 Sofia Quaglioni , Victor D. Efros , Winfried Leidemann , Giuseppina Orlandini

We discuss the final state interaction effects at high energies via a multi-channel N/D method. We find that the 2 by 2 charge--exchange final state interactions typically contribute an enhancement factor of a few times $10^{-2}$ in the $B$…

High Energy Physics - Phenomenology · Physics 2015-06-25 Feng Yuan , Hanqing Zheng

Resolution of discrete final states in the $^{16}$O(e,e$'$pp)$^{14}$C reaction may provide an interesting tool to discriminate between contributions from one- and two-body currents in this reaction. This is based on the observation that the…

Nuclear Theory · Physics 2016-09-08 C. Giusti , F. D. Pacati , K. Allaart , W. J. W. Geurts , W. H. Dickhoff , H. Müther

Short range correlated (SRC) nucleon-nucleon pairs in nuclei are typically studied using measurements of electron-induced hard nucleon-knockout reactions (e.g. $(e,e'p)$ and $(e,e'pN)$), where the kinematics of the knocked-out nucleons are…

The problem of the final state interaction in quasi-elastic $(e,e')$ scattering at large $Q^2$, is investigated by exploiting the idea that the ejected nucleon needs a finite amount of time to assume its asymptotic form. It is shown that…

Nuclear Theory · Physics 2009-11-06 Mikhail A. Braun , Claudio Ciofi degli Atti , Daniele Treleani

The reaction $^{11}B+p$ has been used to populate the $(J^{\pi},T)=(2^+,1)$ state at an excitation energy of 16.11 MeV in $^{12}$C, and the breakup of the state into three $\alpha$ particles has been studied in complete kinematics. A…

Nuclear Experiment · Physics 2016-10-12 K. L. Laursen , H. O. U. Fynbo , O. S. Kirsebom , K. O. Madsbøl , K. Riisager

Color transparency predicts that, in $(e,e'p)$ reactions at large $Q^2$, the final-state interaction becomes weaker than the reference value predicted from the free-nucleon cross section. This reference value is usually evaluated in the…

Nuclear Theory · Physics 2009-10-22 N. N. Nikolaev , A. Szczurek , J. Speth , J. Wambach , B. G. Zakharov , V. R. Zoller

The two-proton emission process $^3He(e,e'pp)n$ is theoretically investigated using realistic three-nucleon wave functions and taking the final state interaction into account by an approach which can be used when the value of the…

Nuclear Theory · Physics 2009-11-07 C. Ciofi degli Atti , L. P. Kaptari

We present a systematic study of the final-state interaction (FSI) effects in $D(e,e'p)$ scattering in the CEBAF energy range with particular emphasis on the phenomenon of the angular anisotropy of the missing momentum distribution. We find…

Nuclear Theory · Physics 2009-10-28 A. Bianconi , S. Jeschonnek , N. N. Nikolaev , B. G. Zakharov

We study final-state interactions in nonleptonic weak decays in statistical models by averaging over ensembles of strong interaction S-matrices. The models range from one with completely random strong interactions, which gives extensive…

High Energy Physics - Phenomenology · Physics 2007-05-23 Robert N. Cahn , Mahiko Suzuki

The analysis of the recent neutral-current elastic neutrino and antineutrino-nucleus scattering cross sections measured by the MiniBooNE Collaboration requires relativistic theoretical descriptions also accounting for the role of…

Nuclear Theory · Physics 2014-04-01 Andrea Meucci , Carlotta Giusti

The two-body knock-out reaction 4He(e,e'd)d is calculated at various momentum transfers. The full four-nucleon dynamics is taken into account microscopically both in the initial and the final states. As NN interaction the central MT-I/III…

Nuclear Theory · Physics 2008-11-26 D. Andreasi , S. Quaglioni , V. D. Efros , W. Leidemann , G. Orlandini