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Recent studies on nucleon and alpha knockout reactions have shown that the distorted-wave impulse approximation (DWIA) is a simple and accurate method to describe these reactions. As it has been argued for decades, the nuclear absorption is…

核理论 · 物理学 2023-09-06 Sang-In Shim , Kazuki Yoshida , Kazuyuki Ogata

Background: Proton-induced nucleon knockout $(p,pN)$ reactions have been successfully used to study the single-particle nature of stable nuclei in normal kinematics with the distorted-wave impulse approximation (DWIA) framework. Recently,…

核理论 · 物理学 2019-12-10 Nguyen Tri Toan Phuc , Kazuki Yoshida , Kazuyuki Ogata

The isoscalar $pn$ pair is expected to emerge in nuclei having the similar proton and neutron numbers but there is no clear experimental evidence for it. We aim to clarify the correspondence between the $pn$ pairing strength in many-body…

核理论 · 物理学 2021-02-24 Yoshiki Chazono , Kenichi Yoshida , Kazuki Yoshida , Kazuyuki Ogata

Background: At intermediate energies, transfer reactions are suppressed because the momentum-matching condition is difficult to satisfy. In the standard distorted wave Born approximation (DWBA), a high momentum component of the transferred…

核理论 · 物理学 2025-10-20 Sang-In Shim , Yoshiki Chazono , Kazuki Yoshida , Tomohiro Uesaka , Kazuyuki Ogata

A theoretical analysis using an impact-parameter description of the collisions of deuterons with nuclei is carried out in the high-energy diffraction approximation. It is used to obtain the intensities and integrated cross sections for…

核理论 · 物理学 2020-09-29 V. Franco , R. J. Glauber

An isoscalar $pn$ pair is expected to emerge in nuclei that have similar proton and neutron numbers and it may be a candidate for a deuteron ``cluster.'' There is, however, no experimental evidence for it. The purpose of this paper is to…

核理论 · 物理学 2023-01-04 Yoshiki Chazono , Kazuki Yoshida , Kazuyuki Ogata

Background: Eclipse effect of the neutron and proton in a deuteron target is essential to correctly describe high-energy deuteron scattering. The nucleus-deuteron scattering needs information not only on the nucleus-proton but also the…

核理论 · 物理学 2020-12-02 W. Horiuchi , Y. Suzuki , T. Uesaka , M. Miwa

The deuteron fragmentation by fast protons has been studied both near the kinematics of quasi-free proton - proton scattering and far away from it. We have concentrated on the interplay between different reaction mechanisms associated with…

核理论 · 物理学 2009-11-10 N. B. Ladygina , A. V. Shebeko

Cross sections for proton knockout observed in (e,e'p) reactions are apparently quenched by a factor of ~0.5, an effect attributed to short-range correlations between nucleons. Here we demonstrate that such quenching is not restricted to…

核实验 · 物理学 2013-07-05 B. P. Kay , J. P. Schiffer , S. J. Freeman

[Background] Proton-induced knockout reactions of the form $(p,pN)$ have experienced a renewed interest in recent years due to the possibility of performing these measurements with rare isotopes, using inverse kinematics. Several…

核理论 · 物理学 2018-02-21 K. Yoshida , M. Gómez-Ramos , K. Ogata , A. M. Moro

We report on the first detailed study of the mechanisms involved in knockout reactions, via a coincidence measurement of the residue and fast proton in one-proton knockout reactions, using the S800 spectrograph in combination with the HiRA…

The proton-induced deuteron knockout reaction, ($p$,$pd$), is one of the interests in the studies for probing the deuteron-like $p$-$n$ correlation in nuclei. According to a recent study of the inclusive deuteron-induced reaction,…

核理论 · 物理学 2024-07-18 Kazuki Yoshida , Yoshiki Chazono , Kazuyuki Ogata

The triple differential cross section (TDX) for the 12C(p,2p) proton knockout reaction from the 1p3/2 single-particle state measured at 392 MeV is investigated by nonrelativistic distorted wave impulse approximation (DWIA) with accurate…

核理论 · 物理学 2008-03-17 T. T. Sumi , K. Ogata

In the given paper the total inelastic cross-sections of the reactions of protons and deuterons on nuclear targets of enriched tin isotopes were compared. The factorization of cross-sections of reactions was discussed. Furthermore, the…

核实验 · 物理学 2013-02-08 A. R. Balabekyan , N. A. Demekhina , V. M. Zhamkochyan , G. S. Karapetyan

High precision cross-section data of the deuteron-proton breakup reaction at 130 MeV deuteron energy are compared with the theoretical predictions obtained with a coupled-channel extension of the CD Bonn potential with virtual Delta-isobar…

The deuteron disintegration process with the emission of fast proton in the vicinity of the kinematical boundary of the reaction, when Feynman variable $x\to 2$, is studied. The consideration is fulfilled in the framework of the…

高能物理 - 唯象学 · 物理学 2007-05-23 M. A. Braun , V. V. Vechernin

Single neutron- and proton-removal cross sections have been systematically measured for 72 medium-mass neutron-rich nuclei around Z=50 and energies around 900A MeV using the FRagment Separator (FRS) at GSI. Neutron-removal cross sections…

The scarce data systematics and complexity of deuteron interactions demand the update of both the experimental database and theoretical frame of deuteron activation cross sections. Various reactions induced by neutrons and protons following…

核实验 · 物理学 2020-02-14 M. Avrigeanu , E. Simeckova , U. Fischer , J. Mrazek , J. Novak , M. Stefanik , C. Costache , V. Avrigeanu

High precision cross-section data of the deuteron-proton breakup reaction at 130 MeV are presented for 72 kinematically complete configurations. The data cover a large region of the available phase space, divided into a systematic grid of…

We present the empirical dispersive optical model (DOM) as applied to direct nuclear reactions. The DOM links both scattering and bound-state experimental data through a dispersion relation which allows for fully-consistent, data-informed…

核理论 · 物理学 2024-10-15 M. C. Atkinson , W. H. Dickhoff
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