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We studied the complete dynamics of the proton-induced spallation process with the microscopic framework of the Constrained Molecular Dynamics (CoMD) Model. We performed calculations of proton-induced spallation reactions on 181Ta, 208Pb,…

Nuclear Theory · Physics 2019-09-04 A. Assimakopoulou , G. A. Souliotis , A. Bonasera , A. Botvina , N. G. Nicolis , M. Veselsky

Relativistic calculations for the quasifree electron scattering process (e, e'p) and the direct knockout contribution to (gamma, p) reactions are presented. The spectroscopic factors determined from the former reaction are used to fix the…

Nuclear Theory · Physics 2009-10-30 J. I. Johansson , H. S. Sherif , G. M. Lotz

The hard proton knock-out by the proton from the deuteron at relativistic energies is considered with a focus on the color transparency (CT) effect which influences the initial and final state interactions. The calculations are performed in…

Nuclear Theory · Physics 2023-01-31 A. B. Larionov

We present the angular distribution of gamma rays produced by proton-proton interactions in parameterized formulae to facilitate calculations in astrophysical environments. The parameterization is derived from Monte Carlo simulations of the…

Astrophysics · Physics 2009-11-13 Niklas Karlsson , Tuneyoshi Kamae

The Gamow shell model is utilized to describe nuclear observables of the weakly bound and resonance isotonic states of $^{16}$O at proton drip-line. It is hereby shown that the presence of continuum coupling leads to complex Coulomb…

Nuclear Theory · Physics 2019-12-06 Nicolas Michel , Jian Guo Li , Fu Rong Xu , Wei Zuo

We present a quantum mechanical theory of optically induced dynamic nuclear polarization applicable to quantum dots and other interacting spin systems. The exact steady state of the optically driven coupled electron-nuclear system is…

Mesoscale and Nanoscale Physics · Physics 2019-02-04 Thomas Nutz , Edwin Barnes , Sophia E. Economou

Recent work has studied the uncertainty in predictions for A(d,p)B reactions using the distorted-wave Born approximation (DWBA), coming from the parameterization of the effective dA interactions [Lovell et al., Phys. Rev. C 95, 024611].…

Nuclear Theory · Physics 2019-04-03 G. B. King , A. E. Lovell , F. M. Nunes

We propose a new approach to probe the spatial extension of the valence neutron orbital in the $^{9}$Be nucleus via the ${}^{9}$Be($p,pn$)${}^{8}$Be knockout reaction. This property of the nuclear molecular orbital has not been established…

Nuclear Theory · Physics 2021-07-14 Nguyen Tri Toan Phuc , Mengjiao Lyu , Yohei Chiba , Kazuyuki Ogata

The $(p,p \alpha)$ reaction offers a direct means to probe preformed $\alpha$-cluster structures in nuclei under quasi-free scattering conditions. Previous studies around 100 MeV provided valuable insights into $\alpha$ clustering, but…

A discrete-event simulation approach which provides a cause-and-effect description of many experiments with photons and neutrons exhibiting interference and entanglement is applied to a recent single-neutron experiment that tests…

Quantum Physics · Physics 2014-03-19 Hans De Raedt , Kristel Michielsen

When a nuclear species (e.g., a nucleon or a deuteron nucleus) propagating freely is made to collide with a target nucleus, its trajectory is modified by exchanging variable amounts of energy, mass, linear and angular momentum with the…

Nuclear Theory · Physics 2025-11-07 Gregory Potel

We have determined both the real and imaginary parts of the dielectric polarizability of a single quantum dot. The experiment is based on the observation and the manipulation of Rayleigh scattering at photon frequencies near the resonance…

Mesoscale and Nanoscale Physics · Physics 2007-12-03 B. Alén , A. Högele , M. Kroner , S. Seidl , K. Karrai , R. J. Warburton , A. Badolato , G. Medeiros-Ribeiro , P. M. Petroff

Microscopic optical model potential results for reaction cross sections of proton elastic scattering are presented. The applications cover the 10-1000 MeV energy range and consider both stable and unstable nuclei. The study is based on…

Nuclear Theory · Physics 2008-11-26 H. F. Arellano , M. Girod

Proteins are made of atoms constantly fluctuating, but can occasionally undergo large-scale changes. Such transitions are of biological interest, linking the structure of a protein to its function with a cell. Atomic-level simulations, such…

Computational Physics · Physics 2022-10-26 Amélie Chatelain , Elena Tommasone , Laurent Daudet , Iacopo Poli

The physics scope of polarized nucleon-nucleon collisions originating from an internal polarized target in the HERA proton beam is summarized. Based on 240 pb^{-1} integrated luminosity at 40 GeV c.m. energy, statistical sensitivities are…

High Energy Physics - Phenomenology · Physics 2016-09-06 V. Korotkov , W. -D. Nowak

$Objective$. Obtaining the intrinsic dose distributions in particle therapy is a challenging problem that needs to be addressed by imaging algorithms to take advantage of secondary particle detectors. In this work, we investigate the…

Instrumentation and Detectors · Physics 2022-09-28 Atiq. Ur. Rahman , Mythra Varun. Nemallapudi , Cheng-Ying. Chou , Shih-Chang Lee , Chih-Hsun. Lin

We point out that, under certain conditions, the nuclear currents that couple to vector bosons can be written as the trace of the product of two matrices. One contains `nucleon dynamics', e.g. form factors, the other contains the overlaps…

Nuclear Theory · Physics 2025-12-30 Alexis Nikolakopoulos , Raúl González-Jiménez

There is increasing interest in discrete or "pixelated" spacetime models as a foundation for a satisfactory theory of quantum gravity. If spacetime possesses a cellular structure, there should be observable consequences: for example, the…

High Energy Physics - Theory · Physics 2023-08-29 Paul C. W. Davies , Philip Tee

We theoretically study the propagation of light through a cold atomic medium, where the effects of motion, laser intensity, atomic density, and polarization can all modify the properties of the scattered light. We present two different…

Quantum Physics · Physics 2016-08-24 Bihui Zhu , John Cooper , Jun Ye , Ana Maria Rey

Elastic scattering is a very important process to understand nuclear interactions in finite nuclei. Despite decades of efforts, the goal of reaching a coherent description of this physical process in terms of microscopic forces is still far…

Nuclear Theory · Physics 2018-12-12 Matteo Vorabbi , Paolo Finelli , Carlotta Giusti