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Related papers: Learning from knockout reactions using a dispersiv…

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Our goal is to reveal how the $\alpha$ cluster amplitude is probed through $\alpha$ knockout reactions depending on reaction conditions, e.g., the incident energy. We consider $^{20}$Ne($p$,$p\alpha$)$^{16}$O and…

Nuclear Theory · Physics 2018-08-15 Kazuki Yoshida , Kazuyuki Ogata , Yoshiko Kanada-En'yo

The $\alpha$-decay phenomennon has been studied for more than a century but the mechanism of the $\alpha$ particle formation and its tunneling process have not yet been fully understood. As an alternative to the $\alpha$-decay lifetime…

Nuclear Theory · Physics 2022-08-10 Kazuki Yoshida , Junki Tanaka

The effective polarization of the residual nucleus in the proton-induced $\alpha$ knockout reaction is investigated within the distorted wave impulse approximation framework. The strong absorption of the emitted $\alpha$ particle results in…

Nuclear Theory · Physics 2023-05-17 Tomoatsu Edagawa , Kazuki Yoshida , Yoshiki Chazono , Kazuyuki Ogata

A discrete-event approach, which has already been shown to give a cause-and-effect explanation of many quantum optics experiments, is applied to single-neutron interferometry experiments. The simulation algorithm yields a logically…

Quantum Physics · Physics 2015-06-11 Hans De Raedt , Fengping Jin , Kristel Michielsen

Using hadron dynamics we calculate nuclear transparencies for protons, knocked-out in high-$Q^2$, semi-inclusive reactions. Predicted transparencies are, roughly half a standard deviation above the NE18 data. The latter contain the effects…

Nuclear Theory · Physics 2009-10-28 A. S. Rinat , M. F. Taragin

We study the transparency $\cal T$ of nuclei for nucleons knocked-out in high-energy semi-inclusive $(e,e'p)$ reactions, using an improved theoretical input, discussed by Nikolaev et al. We establish that neglect of $NN$-correlations…

Nuclear Theory · Physics 2009-10-28 A. S. Rinat , M. F. Taragin

A dispersive-optical-model analysis has been performed for both protons and neutrons on 40,42,44,48Ca isotopes. The fitted potentials describe accurately both scattering and bound quantities and extrapolate well to other stable nuclei.…

Nuclear Theory · Physics 2010-03-04 C. Barbieri , R. J. Charity , W. H. Dickhoff , L. G. Sobotka

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

Direct photon produced from first proton-neutron ($p$-$n$) collision during the early stage of heavy ion reaction is a sensitive probe to reflect energy and momentum distribution of nucleons. In this work, we embedded the hard photon…

Nuclear Theory · Physics 2020-08-11 C. Z. Shi , Y. G. Ma , X. G. Cao , D. Q. Fang , W. B. He , C. Zhong

Computational prediction of enzymatic reactions represents a crucial challenge in sustainable chemical synthesis across various scientific domains, ranging from drug discovery to materials science and green chemistry. These syntheses rely…

Machine Learning · Computer Science 2025-02-04 Amitay Sicherman , Kira Radinsky

Elastic electron scattering has been used to paint the most accurate picture of the proton distribution in atomic nuclei. Spurred by new experimental developments, it is now possible to gain valuable insights into the neutron distribution…

Nuclear Theory · Physics 2019-11-06 Junjie Yang , Jesse A. Hernandez , J. Piekarewicz

The interaction of a proton with a deuteron is the simplest nuclear reaction. However, it allows the study of precursors of nuclear medium effects such as initial-state/final-state interactions (ISI/FSI). In case of hard proton knockout,…

Nuclear Theory · Physics 2025-07-11 A. B. Larionov

We revisit the WIMP-type dark matter scattering on electrons that results in atomic ionization, and can manifest itself in a variety of existing direct-detection experiments. Unlike the WIMP-nucleon scattering, where current experiments…

High Energy Physics - Phenomenology · Physics 2016-07-01 B. M. Roberts , V. A. Dzuba , V. V. Flambaum , M. Pospelov , Y. V. Stadnik

Two-nucleon removal (or knock-out) reactions at intermediate energies are a developing tool for both nuclear spectroscopy and for the study of certain nucleon correlations in very exotic and some stable nuclei. We present an overview of…

Nuclear Theory · Physics 2017-08-23 E. C. Simpson , J. A. Tostevin

A geometric model for the direct contribution of the reaction cross section induced by light ions on different targets is presented. The model separates the total reaction cross section into two components, one for total fusion and another…

Nuclear Theory · Physics 2023-06-26 A. Serra , R. Lichtenthäler , O. C. B. Santos , K. C. C. Pires , U. Umbelino

One-neutron knockout reactions have been widely used to extract information about the single-particle structure of nuclei from the valley of stability to the driplines. The interpretation of knockout data relies on reaction models, where…

Nuclear Theory · Physics 2023-07-19 Chloë Hebborn , T. R. Whitehead , Amy E. Lovell , Filomena M. Nunes

This paper gives new insight to the study of dynamical effects in proton breakup as compared to neutron breakup from a weakly bound state in an exotic nucleus. Following our recent work [Ravinder Kumar and Angela Bonaccorso, Phys. Rev. C84…

Nuclear Theory · Physics 2015-06-12 Ravinder Kumar , Angela Bonaccorso

Charge-exchange reactions are versatile probes for nuclear structure. In particular, when populating isobaric analog states, these reactions are used to study isovector nuclear densities and neutron skins. The quality of the information…

Nuclear Theory · Physics 2024-09-17 A. J. Smith , C. Hebborn , F. M. Nunes , R. G. T. Zegers

Nucleon-removal reactions are a primary tool for extracting single-particle structure of rare isotopes, yet the ratio $R_s=\sigma_{\exp}/\sigma_{\mathrm{th}}$ of measured to theoretical cross sections drops systematically below unity for…

Nuclear Theory · Physics 2026-02-16 Jin Lei

A recently derived dispersive optical model potential (DOMP) for $^{208}$Pb is extended to consider the non-locality in the real potential and the shell-gap in the definition of the nuclear imaginary potentials near the Fermi energy. The…

Nuclear Theory · Physics 2020-07-01 Xiuniao Zhao , Weili Sun , R. Capote , E. Sh. Soukhovitski\~ı , D. S. Martyanov , J. M. Quesada