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Related papers: Event-by-Event Multiplicity Correlations in $^{252…

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In the first part of the talk we discuss the role of the two-body nucleon-nucleon correlations on signatures of the heavy-ion collisions which are a priori expected to be sensitive to these effects. We find that while the fluctuations of…

Nuclear Theory · Physics 2010-11-02 Wojciech Broniowski , Maciej Rybczynski , Lukasz Obara , Mikolaj Chojnacki

Bremsstrahlung emission of photons during nuclear reactions inside dense stellar medium is investigated in the paper. For that, a new model of nucleus is developed, where nuclear forces combine nucleons as bound system in dependence on deep…

Nuclear Theory · Physics 2024-09-23 Sergei P. Maydanyuk , Kostiantyn A. Shaulskyi

A statistical model description of heavy ion induced fusion-fission reactions is presented where shell effects, collective enhancement of level density, tilting away effect of compound nuclear spin and dissipation are included. It is shown…

Nuclear Theory · Physics 2017-12-01 Tathagata Banerjee , S. Nath , Santanu Pal

Background: Precise understanding of nuclear fission is crucial for experimental and theoretical nuclear physics, astrophysics, and industrial applications; however, the complete physical mechanics is unresolved due to the complexities.…

Nuclear Theory · Physics 2023-11-27 Shyoya Tanaka , Nobuya Nishimura , Futoshi Minato , Yoshihiro Aritomo

A comprehensive analysis of multiparticle emissions following photon induced reactions at intermediate energies is provided. Photon induced reaction is described in the energy range of $\sim 30-140$ MeV with an approach based on the…

Nuclear Theory · Physics 2009-01-27 Tapan Mukhopadhyay , D. N. Basu

Dark photons, hypothetical feebly interacting massive vector bosons, appear in many extensions of the Standard Model. This study investigates their production and subsequent decay during supernova explosions. We demonstrate that the decay…

High Energy Physics - Phenomenology · Physics 2024-05-01 Vsevolod Syvolap , Oleg Ruchayskiy

Spectra of unbound electron-positron pairs (dielectrons, in brief) and photons from decays of parapositronia produced in ultraperipheral collisions of electrically charged objects are calculated. Their shapes at energies of the NICA…

High Energy Physics - Phenomenology · Physics 2020-07-01 I. M. Dremin

The double-energy double-velocity ($2E$-$2v$) method allows assessing fission-fragment mass yields prior to and after prompt neutron emission with high resolution. It is, therefore, considered as a complementary technique to assess average…

Instrumentation and Detectors · Physics 2017-09-25 Kaj Jansson , Ali Al-Adili , Erik Andersson Sundén , Stephan Pomp , Alf Göök , Stephan Oberstedt

We suggest a small set of fission observables to be used as test cases for validation of theoretical calculations. The purpose is to provide common data to facilitate the comparison of different fission theories and models. The proposed…

Nuclear Theory · Physics 2016-01-26 G. F. Bertsch , W. Loveland , W. Nazarewicz , P. Talou

We model effects of color fluctuations (CFs) in the light-cone photon wave function and for the first time make predictions for the distribution over the number of wounded nucleons $\nu$ in the inelastic photon-nucleus scattering. We show…

High Energy Physics - Phenomenology · Physics 2017-03-16 M. Alvioli , L. Frankfurt , V. Guzey , M. Strikman , M. Zhalov

The deexcitation of the primary hot fragments, produced in the breakup of an excited nuclear source, during their propagation under the influence of their mutual Coulomb repulsion is studied in the framework of a recently developed hybrid…

Nuclear Theory · Physics 2019-06-26 S. R. Souza , B. V. Carlson , R. Donangelo

Within MCNP6, users can use multiplicity distributions for spontaneous and neutron-induced fission from an evaluation performed by Lestone (LA-UR-05-0288). This evaluation assumes the multiplicity distributions are Gaussian and adjusts the…

Nuclear Theory · Physics 2014-10-09 J. P. Lestone

We show that fluctuating proton positions in the colliding nuclei generate, on the event-by-event basis, very strong magnetic and electric fields in the direction both parallel and perpendicular to the reaction plane. The magnitude of E and…

High Energy Physics - Phenomenology · Physics 2015-06-03 Adam Bzdak , Vladimir Skokov

We study the nuclear dependences of high-$p_T$ jet cross sections in one photon and one jet production in proton-nucleus collisions. We find that there exist asymmetries between the outgoing jets and photons. A convincing reason responsible…

High Energy Physics - Phenomenology · Physics 2009-10-31 Hong Shen , Ma Luo

The theoretical description of the correlations between observables in two separated rapidity intervals for AA-interactions at high energies is presented. In the case with the realistic nucleon distribution density of colliding nuclei the…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. S. Kolevatov , V. V. Vechernin

We study the consequences of the constant-temperature behaviour of nuclei in the superfluid regime for the exchange of excitation energy between two nuclei in thermal contact. This situation is realized at the scission configuration of…

Nuclear Theory · Physics 2014-11-20 Karl-Heinz Schmidt , Beatriz Jurado

Energy dependence of fission observables is a key issue for wide nuclear applications. We studied real-time fission dynamics from low-energy to high excitations in the compound nucleus $^{240}$Pu with the time-dependent Hartree-Fock+BCS…

Nuclear Theory · Physics 2021-03-31 Yu Qiang , Junchen Pei , Paul Stevenson

Highly charged relativistic heavy ions have high cross-sections for two-photon interactions. The photon flux is high enough that two-photon interactions may be accompanied by additional photonuclear interactions. Except for the shared…

Nuclear Experiment · Physics 2009-11-06 Anthony J. Baltz , Yuri Gorbunov , Spencer R. Klein , Joakim Nystrand

We address the general features of event-by-event fluctuations of the multiplicity of gluons produced in the scattering of a dilute hadron off a large nucleus at high energy in the fragmentation region of the dilute hadron. We relate these…

High Energy Physics - Phenomenology · Physics 2017-01-11 Tseh Liou , A. H. Mueller , S. Munier

We describe a new mechanism of decoherence in excited atoms as a result of thermal particles scattering by the atomic nucleus. It is based on the idea that a single scattering will produce a sudden displacement of the nucleus, which will be…

Quantum Physics · Physics 2017-06-13 Diego A. Quiñones , Benjamin Varcoe