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Photonuclear reaction is described with an approach based on the quasideuteron nuclear photoabsorption model followed by the process of competition between light particle evaporation and fission for the excited nucleus. Thus fission process…

核理论 · 物理学 2008-11-26 Tapan Mukhopadhyay , D. N. Basu

The nuclear photo-emulsion technique is used to study the information carried by the medium energy nucleons produced in heavy ion collisions. Multiplicity, energies as well as the angular distribution of this type of particles are measured.…

高能物理 - 唯象学 · 物理学 2007-05-23 M. T. Hussein , N. M. Hassan , N. M. Sadek , Jamila Elsweedy

Photonuclear reactions at energies covering the giant dipole resonance (GDR) region are analyzed with an approach based on nuclear photoabsorption followed by the process of competition between light particle evaporation and fission for the…

核理论 · 物理学 2010-06-28 Tapan Mukhopadhyay , D. N. Basu

Photon-nuclear reaction in a transport model frame, namely an Extended Quantum Molecular Dynamics (EQMD) model, has been realised at the photon energy of 70-140 MeV in the quasi-deuteron (QD) regime. For an important application, we pay a…

核理论 · 物理学 2018-03-22 B. S. Huang , Y. G. Ma , W. B. He

Comprehensive calculations of cross sections of photon induced reactions on $^{233-238}$U targets for incident photon energies from 3 up to 30 MeV are undertaken with the statistical model code EMPIRE-3.2 Malta. Results are compared with…

核理论 · 物理学 2021-05-19 M. Sin , R. Capote , M. W. Herman , A. Trkov , B. V. Carlson

Nuclear reactions induced by muon neutrino with energies in the range from 0.2 to 1.5 GeV in Monte Carlo calculations framework in the intra-nuclear cascade model are studied. This study was done by comparison between the available…

Following the formation of an excited muonic atom, inner shell transitions may proceed without photon emission by inverse internal conversion, i.e. the muonic excitation energy is transferred to the nucleus. In actinides, the 2p -> 1s and…

核理论 · 物理学 2007-05-23 Volker E. Oberacker , A. Sait Umar , Feodor F. Karpeshin

The interaction between nuclei and a strong zeptosecond laser pulse with coherent MeV photons is investigated theoretically. We provide a first semi-quantitative study of the quasiadiabatic regime where the photon absorption rate is…

核理论 · 物理学 2016-02-22 Adriana Pálffy , Oliver Buss , Axel Hoefer , Hans A. Weidenmüller

Neutron- and proton-induced fission cross-sections of separated isotopes of tungsten (182W, 183W, 184W, and 186W) and 181Ta relative to 209Bi have been measured in the incident nucleon energy region 50 - 200 MeV using fission chambers based…

Monte Carlo calculations of fission of actinides and pre-actinides induced by protons and neutrons in the energy range from 100 MeV to 1 GeV are carried out by means of a recent version of the Li\`ege Intranuclear Cascade Model, INCL++,…

核理论 · 物理学 2014-12-02 Sergio Lo Meo , Davide Mancusi , Cristian Massimi , Gianni Vannini , Alberto Ventura

The interaction between medium-weight nuclei and a strong zeptosecond laser pulse of MeV photons is investigated theoretically. Multiple absorption of photons competes with nuclear equilibration. We investigate the sudden regime. Here the…

核理论 · 物理学 2021-05-11 Sergei Kobzak , Hans A. Weidenmüller , Adriana Pálffy

A model describing nuclear collisions at intermediate energies is presented and the results are compared with recently measured double differential cross sections in C-C reactions at 95 MeV/nucleon. Results show the key role played by…

核理论 · 物理学 2016-08-24 Jérémie Dudouet , Dominique Durand

Mostly for the purpose of applications for the energy and the environment and for the design of sources of neutrons or exotic nuclides, intense research has been dedicated to spallation, induced by protons or light projectiles at incident…

核实验 · 物理学 2008-11-26 P. Napolitani

The proton-proton momentum correlation function from different rapidity regions are systematically investigated for the Au + Au collisions at different impact parameters and different energies from 400$A$ MeV to 1500$A$ MeV in the framework…

核理论 · 物理学 2018-03-26 Ting-Ting Wang , Yu-Gang Ma , Chun-Jian Zhang , Zheng-Qiao Zhang

Employing a recently developed Monte Carlo model, we study the fission of 240Pu induced by neutrons with energies from thermal to just below the threshold for second chance fission. Current measurements of the mean number of prompt neutrons…

核理论 · 物理学 2009-10-29 R. Vogt , J. Randrup , J. Pruet , W. Younes

We discuss the possibility to study the in-medium changes of the properties of the omega meson in reactions on ordinary nuclei with elementary electromagnetic probes. We present a tree-level calculation of the elementary gamma p -> omega p…

核理论 · 物理学 2008-11-26 P. Muehlich , U. Mosel

We study nuclear stopping in central collisions for heavy-ion induced reactions in the Fermi energy domain, between $15$ and $100$ A\,\textrm{MeV}. Using the large dataset of exclusive measurements provided by the $4\pi$ array \emph{INDRA},…

Hard-photon (E$_{\gamma}>$ 30 MeV) emission from second-chance nucleon-nucleon Bremsstrahlung collisions in intermediate energy heavy-ion reactions is studied employing a realistic thermal model. Photon spectra and yields measured in…

We study the fusion of a proton with a nucleus with the emission of two photons at low incident energy of the order of eV or smaller. We use a step model for the repulsive potential between proton and the nuclei. We consider the reaction…

核理论 · 物理学 2023-08-02 Kaanapuli Ramkumar , Harishyam Kumar , Pankaj Jain

The pre-neutron-emission mass distributions for reaction $^{238}$U(n, f) up to 60 MeV are systematically studied with an empirical fission potential model. The energy dependence of the peaks and valleys of the pre-neutron-emission mass…

核理论 · 物理学 2013-10-14 Xiaojun Sun , Chenggang Yu , Ning Wang , Yongxu Yang
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