Zobrazeno 1 - 10
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pro vyhledávání: '"Valery G. Serbo"'
Landau-Yang theorem is sometimes formulated as a selection rule forbidding two real (that is, non-virtual) photons with zero total momentum to be in the state of the total angular momentum J=1. In this paper we discuss whether the theorem itself and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b2f04b3f89c60e55bcc9712ec551fc2
We consider two basic nuclear reactions: Radiative capture of neutrons by protons, $n+p\to \gamma+~d$ and its time-reversed counterpart, photodisintegration of the deuteron, $\gamma +d\to n+p$. In both of these cases we assume that the incoming beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a138d8803f04e2eaaf64ed02799c3701
http://arxiv.org/abs/1709.05625
http://arxiv.org/abs/1709.05625
We present the detailed quantum electrodynamical description of Vavilov-Cherenkov radiation emitted by a relativistic twisted electron in the transparent medium. Simple expressions for the spectral and spectral-angular distributions as well as for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5bc168293ec3b9a45ce1c3b8ab1cdc4
http://arxiv.org/abs/1602.05099
http://arxiv.org/abs/1602.05099
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 184:297-301
Virtual Delbruck scattering in heavy-ion collisions contributes to the emission of photons. Specifically, the elastic scattering of an equivalent photon emitted by a nucleus in the Coulomb field of an incoming nucleus can lead to the emission of a ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaebc50b262a97c431803baa23b4d95b
https://doi.org/10.1016/j.nuclphysbps.2008.09.179
https://doi.org/10.1016/j.nuclphysbps.2008.09.179
Publikováno v:
Physical Review A. 92
It has recently been demonstrated experimentally that $200\text{--}300$ keV electrons with the unusual spatial profiles can be produced and even focused to a subnanometer scale---namely, electrons carrying nonzero orbital angular momentum and also th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e025f4300febba339dd535e82fc3c28
https://doi.org/10.1103/physreva.92.052703
https://doi.org/10.1103/physreva.92.052703
Publikováno v:
Physical Review A. 92
The Mott scattering of high-energetic twisted electrons by atoms is investigated within the framework of the first Born approximation and Dirac's relativistic equation. Special emphasis is placed on the angular distribution and longitudinal polarizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faffdb93ffbcbf25b9d9d9c168f7adf9
https://doi.org/10.1103/physreva.92.012705
https://doi.org/10.1103/physreva.92.012705
Publikováno v:
Physical Review A. 91
The excitation of many-electron atoms and ions by twisted light has been studied within the framework of the density-matrix theory and Dirac's relativistic equation. Special attention is paid to the magnetic sublevel population of excited atomic stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::459a4a63624201ba7258b5442bdcfa98
https://doi.org/10.1103/physreva.91.013403
https://doi.org/10.1103/physreva.91.013403
Autor:
Valery G. Serbo
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 227:132-136
The coherent bremsstrahlung (CBS) at colliders with short bunches is considered. CBS is a radiation of particles of one bunch in the collective electromagnetic field of the oncoming bunch. We give the simple qualitative description of CBS. It seems t
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https://explore.openaire.eu/search/publication?articleId=doi_________::1a7bc666fb583107a060e28eab9fa772
https://doi.org/10.1016/j.nimb.2004.04.177
https://doi.org/10.1016/j.nimb.2004.04.177
Autor:
Valery G. Serbo, G. L. Kotkin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 227:137-142
In the colliders, the macroscopically large impact parameters give a substantial contribution to the standard cross section of the e+e−→e+e−γ process. These impact parameters may be much larger than the transverse sizes of the colliding bunche
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::498ccbb5ac27a5d9dbfe66215bed9f28
https://doi.org/10.1016/j.nimb.2004.04.178
https://doi.org/10.1016/j.nimb.2004.04.178
Autor:
Valery G. Serbo, G. L. Kotkin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 517:28-33
For the $e^+ e^- \to e^+ e^- \gamma$ process at colliding beams, macroscopically large impact parameters give an essential contribution to the standard cross section. These impact parameters may be much larger than the transverse sizes of the collidi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eed1cfe202a24f3e409f2372d4171908
https://doi.org/10.1016/j.nima.2003.10.096
https://doi.org/10.1016/j.nima.2003.10.096