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A new approach is presented to determine the proton-nucleus interactions from the analysis of the accompanying photon bremsstrahlung. We study the scattering of $p + ^{208}{\rm Pb}$ at the proton incident energies of 140 and 145~MeV, and…

Nuclear Theory · Physics 2015-03-26 Sergei P. Maydanyuk , Peng-Ming Zhang

A spatial-time method of description of alpha-decay of a nucleus is presented. The method is based on the quantum mechanical model of the alpha-decay of a compound nuclear system with the barrier. alpha-decay dynamics is described on the…

Nuclear Theory · Physics 2007-05-23 Sergei P. Maydanyuk , Vladislav S. Olkhovsky , Sergei V. Belchikov

We calculate the coherent bremsstrahlung process $\nu+{\cal N} \to {\cal N}+\nu+\gamma$ off a nucleus ${\cal N}$ with the aim of revealing the neutrino mass via the photon endpoint spectrum. Unfortunately, the large required power of a…

High Energy Physics - Phenomenology · Physics 2019-01-15 Alexander Millar , Georg Raffelt , Leo Stodolsky , Edoardo Vitagliano

The observed spectra in the collisions of neon (Ne) projectiles of 1.8 and 2.1 MeV with an aluminum target (Al) have been successfully segregated from strong bremsstrahlung backgrounds and then analyzed by comparing the transition energies…

We present a model of coherent Bremsstrahlung emission from the compression phase of relativistic heavy ion collisions based on a hydrodynamical description of the collision process. The decceleration of the matter through a shock front,…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. Bertulani , L. Mornas , U. Ornik

Purpose: In this paper we investigated emission of bremsstrahlung photons in the scattering of protons off deuterons within the microscopic cluster models in a wide region of the beam energy from low energies up to 1.5 GeV. Methods:…

Nuclear Theory · Physics 2024-04-19 K. A. Shaulskyi , S. P. Maydanyuk , V. S. Vasilevsky

We consider the bremsstrahlung surface photon emissivity of strange quark stars, by sistematically taking into account the effects of the multiple scatterings of the highly relativistic quarks in a dense medium (the…

Astrophysics · Physics 2009-11-10 K. S. Cheng , T. Harko

Bremsstrahlung radiation emission is an important energy loss mechanism for energetic electrons in plasmas. In this paper we investigate the effect of spontaneous bremsstrahlung emission on the momentum-space structure of the electron…

Plasma Physics · Physics 2016-09-21 Ola Embréus , Adam Stahl , Tünde Fülöp

Simple analytical models for E1 strength function calculations of the $\gamma$-decay are investigated.

Nuclear Theory · Physics 2017-08-23 V. A. Plujko , O. O. Kavatsyuk

The basic expressions for the differential nuclear bremsstrahlung cross section at high electron energy, as derived under different theoretical approaches and approximations to quantum coherence effects, are compared. The Baier-Katkov…

High Energy Physics - Phenomenology · Physics 2021-12-15 A. Mangiarotti , P. Sona , U. I. Uggerhøj

A semiclassical investigation of the electromagnetic radiation emitted by a charged particle in a radially freely falling motion in Schwarzschild spacetime is carried out. We use quantum field theory at tree level to obtain the…

General Relativity and Quantum Cosmology · Physics 2024-04-19 João P. B. Brito , Rafael P. Bernar , Atsushi Higuchi , Luís C. B. Crispino

Simple analytic formulas are considered for the energy radiated in low frequency bremsstrahlung from fully ionized gases. A formula that has been frequently cited over many years turns out to have only a limited range of validity, more…

Astrophysics of Galaxies · Physics 2019-05-08 Steven Weinberg

The radiation reaction (beamstrahlung) effect on particle dynamics during interaction of oppositely charged beams is studied. It is shown that the beam focusing can be strongly enhanced due to beamstrahlung. An approximate analytical…

Accelerator Physics · Physics 2021-11-17 A. S. Samsonov , E. N. Nerush , I. Yu. Kostyukov , M. Filipovic , C. Baumann , A. Pukhov

The bremsstrahlung flux-averaged cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle$ and the cross-sections per equivalent photon $\langle{\sigma(E_{\rm{\gamma max}})_{\rm{Q}}}\rangle$ were first measured for the photonuclear…

We estimate the dipole radiation emitted in fusion processes. We show that a classical bremsstrahlung approach can account for both the preequilibrium and the thermal photon emission. We give an absolute evaluation of the pre-equilibrium…

Nuclear Theory · Physics 2009-11-07 V. Baran , D. M. Brink , M. Colonna , M. Di Toro

The mechanism of beta decay in nature is not understood yet. Mirrored energy spectra of electron and antineutrino can clarify the situation. A special experiment is needed to measure antineutrino spectrum from known beta-decaying isotope to…

High Energy Physics - Phenomenology · Physics 2021-02-26 S. V. Silaeva , V. V. Sinev

An approximate approach for the description of the two-photon bremsstrahlung emitted by a relativistic projectile scattered in a spherically-symmetric field is developed. It based on the accurate treatment of the analytical structure of the…

Atomic Physics · Physics 2007-05-23 A. V. Korol , I. A. Solovjev

We discuss the bremsstrahlung of photons into a heat bath, and calculate from first principles the energy radiated. Even to lowest order the spectrum of the radiation at low frequency is no more singular than at zero temperature. In…

High Energy Physics - Phenomenology · Physics 2009-10-28 P V Landshoff , J C Taylor

Analysing (e,e'p) experimental data involves corrections for radiative effects which change the interaction kinematics and which have to be carefully considered in order to obtain the desired accuracy. Missing momentum and energy due to…

Nuclear Theory · Physics 2015-06-26 Florian Weissbach , Kai Hencken , Daniela Rohe , Ingo Sick , Dirk Trautmann

In this article the neutrino bremsstrahlung process is considered in presence of strong magnetic field, though the calculations for this process in absence of magnetic field are also carried out simultaneously. The electrons involved in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Indranath Bhattacharyya
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