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Related papers: Angular bremsstrahlung during $\alpha$-decay, emis…

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In this paper the improved multipolar model of bremsstrahlung accompanied the $\alpha$-decay is presented. The angular formalism of calculations of the matrix elements, being enough complicated component of the model, is stated in details.…

Nuclear Theory · Physics 2008-07-24 Sergei P. Maydanyuk

Emission of bremsstrahlung photons accompanying proton decay of nuclei is studied. The new improved multipolar model describing such a process is presented. The angular formalism of calculations of the matrix elements is stated in details.…

Nuclear Theory · Physics 2015-03-18 Sergei P. Maydanyuk

A new quantum electrodynamical method of calculations of bremsstrahlung spectra in the $\alpha$-decay of heavy nuclei taking into account the angle between the directions of $\alpha$-particle motion (or its tunneling) and photon emission is…

Nuclear Theory · Physics 2009-09-29 Sergei P. Maydanyuk , Vladislav S. Olkhovsky

A high-statistics measurement of bremsstrahlung emitted in the alpha decay of 210Po has been performed, which allows to follow the photon spectra up to energies of ~ 500 keV. The measured differential emission probability is in good…

Nuclear Experiment · Physics 2008-11-26 H. Boie , H. Scheit , U. D. Jentschura , F. Köck , M. Lauer , A. I. Milstein , I. S. Terekhov , D. Schwalm

A quantum mechanical model for the description of the alpha-decay of heavy nuclei with accompanying photons emission is presented. The model is based on a quantum mechanical one-particle model of alpha-decay through a decay barrier. The…

Nuclear Theory · Physics 2008-07-24 Sergei P. Maydanyuk , Vladislav S. Olkhovsky

A quantum mechanical method of calculation of bremsstrahlung spectra in alpha-decay of heavy nuclei with taking into account an angle between directions of the alpha-particle motion and the photon emission is presented. Dependence between…

Nuclear Theory · Physics 2008-07-24 Sergei P. Maydanyuk , Sergei V. Belchikov

We obtained the spectrum of probability of the bremsstrahlung emission accompanying the $\alpha$-decay of $^{226}{\rm Ra}$ (E$_{\alpha}$=4.8 MeV) by measuring the $\alpha$-$\gamma$ coincidences and using the model presented in our previous…

We investigate possibility of emission of the bremsstrahlung photons in nuclear reactions with hypernuclei for the first time. A new model of the bremsstrahlung emission which accompanies interactions between $\alpha$ particles and…

Nuclear Theory · Physics 2018-10-30 Xin Liu , Sergei P. Maydanyuk , Peng-Ming Zhang , Ling Liu

We analyze if the nucleon structure of the $\alpha$ decaying nucleus can be visible in the experimental bremsstrahlung spectra of the emitted photons which accompany such a decay. We develop a new formalism of the bremsstrahlung model…

Nuclear Theory · Physics 2015-05-06 Sergei P. Maydanyuk , Peng-Ming Zhang , Li-Ping Zou

We investigate the angular distribution of photons in the coherent bremsstrahlung process by high-energy electrons in a periodically deformed single crystal with a complex base. The formula for the corresponding differential cross-section…

Accelerator Physics · Physics 2010-01-17 V. V. Parazian

A new model of the bremsstrahlung emission which accompanies proton decay and collisions of protons off nuclei in the energy region from the lowest up to intermediate, has been developed. This model includes spin formalism, potential…

Nuclear Theory · Physics 2012-07-30 Sergei P. Maydanyuk

A quantum mechanical analysis of the bremsstrahlung in $\alpha$ decay of $^{210}$Po is performed in close reference to a semiclassical theory. We clarify the contribution from the tunneling, mixed, outside barrier regions and from the wall…

Nuclear Theory · Physics 2009-10-31 N. Takigawa , Y. Nozawa , K. Hagino , A. Ono , D. M. Brink

An economic technique for calculation of polarized bremsstrahlung process is proposed, assuming typical atomic momentum transfer $q\ll m$. The adopted approach is based on the natural reduction of the matrix element to the form…

High Energy Physics - Phenomenology · Physics 2008-06-23 Miccola V. Bondarenco

Using our previous approach to electromagnetic emission during tunneling, an explicit, essentially classical, formula describing the bremsstrahlung spectrum in alpha decay is derived. The role of tunneling motion in photon emission is…

Nuclear Theory · Physics 2009-10-31 M. I. Dyakonov

We present a quasiclassical theory of alpha decay accompanied by bremsstrahlung with a special emphasis on the case of 210Po, with the aim of finding a unified description that incorporates both the radiation during the tunneling through…

Nuclear Theory · Physics 2015-06-26 U. D. Jentschura , A. I. Milstein , I. S. Terekhov , H. Boie , H. Scheit , D. Schwalm

In this paper a role of many-nucleon dynamics in formation of the compound $^{5}{\rm Li}$ nucleus in the scattering of protons off $\alpha$-particles at the proton incident energies up to 20 MeV is investigated. We propose a bremsstrahlung…

Nuclear Theory · Physics 2016-03-08 Sergei P. Maydanyuk , Peng-Ming Zhang

We investigate emission of the bremsstrahlung photons in the scattering of protons off nuclei at the $\Delta$-resonance energy region. Including properties of $\Delta$-resonance in the nucleus-target to the bremsstrahlung model, we find the…

Nuclear Theory · Physics 2023-03-15 Sergei P. Maydanyuk

We study the bremsstrahlung radiation of a tunneling charged particle in a time-dependent picture. In particular, we treat the case of bremsstrahlung during alpha-decay, which has been suggested as a promissing tool to investigate the…

Nuclear Experiment · Physics 2009-10-31 C. A. Bertulani , D. T. de Paula , V. G. Zelevinsky

We investigate an idea, how to use analysis of the bremsstrahlung photons to study the internal structure of proton under nuclear reaction with nucleus. A new model is constructed to describe bremsstrahlung emission of photons which…

Nuclear Theory · Physics 2019-06-12 Sergei P. Maydanyuk , Peng-Ming Zhang , Li-Ping Zou

Bremsstrahlung from relativistic electrons is considered under conditions when some transverse direction of momentum transfer is statistically preferred. It is shown that in the dipole approximation all the medium anisotropy effects can be…

High Energy Physics - Phenomenology · Physics 2013-05-29 M. V. Bondarenco
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