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To find candidates for long-lived high-K isomers in even-even Z=106-112 superheavy nuclei we study dominant alpha-decay channel of two- and four-quasi-particle configurations at a low excitation. Energies are calculated within the…

Nuclear Theory · Physics 2018-07-25 P. Jachimowicz , M. Kowal , J. Skalski

High-harmonic generation from muonic atoms exposed to intense laser fields is considered. Our particular interest lies in effects arising from the finite nuclear mass and size. We numerically perform a fully quantum mechanical treatment of…

Atomic Physics · Physics 2016-08-14 A. Shahbaz , C. Müller , A. Staudt , T. J. Buervenich , C. H. Keitel

Electron mass is known to modify at finite temperatures and densities. Weak nuclear processes have a great impact on electron mass which modifies in a statistical background. We demonstrate how the temperature change in electron mass is…

High Energy Astrophysical Phenomena · Physics 2024-12-31 Samina Masood , Jaskeerat Singh

Various theories have predicted the deep Dirac levels (DDLs) in atoms for many years. However, the existence of the DDL is still under debating, and need to be confirmed experimentally. With the development of high intensive lasers,…

Nuclear Experiment · Physics 2017-03-27 Xiaopeng Zhang , Changbo Fu , Dechang Dai

The processes of laser-assisted synthesis of Tritium nuclei and their laser-induced decay in cold plasma in the vicinity of solid targets (Au, Ti, Se, etc.) immersed into heavy water are experimentally realized at peak laser intensity of…

General Physics · Physics 2013-06-05 E. V. Barmina , P. G. Kuzmin , S. F. Timashev , G. A. Shafeev

The dynamics of an electron in a strong laser field can be significantly altered by radiation reaction. This usually results in a strongly damped motion, with the electron losing a large fraction of its initial energy. Here we show that the…

Plasma Physics · Physics 2014-02-12 Matteo Tamburini , Christoph H. Keitel , Antonino Di Piazza

Nuclear deformation effects are theoretically investigated in terms of deformation corrections of the electronic binding and transition energies, $g$ factor, and hyperfine splitting constant. By solving the Dirac equation twice, with the…

Atomic Physics · Physics 2023-09-15 Zewen Sun , Igor A. Valuev , Natalia S. Oreshkina

Accurate calculations of the nucleation rate $\Gamma$ for first order phase transitions are important for determining their observable consequences in particle physics and cosmology. Perturbative calculations are often used, but they are…

High Energy Physics - Lattice · Physics 2025-02-07 Oliver Gould , Anna Kormu , David J. Weir

The effective potential is a widely used phenomenological tool to investigate phase transitions occurring in the early Universe at finite temperature. In the standard perturbative treatment the potential becomes complex in some region of…

High Energy Physics - Phenomenology · Physics 2023-11-10 Károly Seller

A theoretical study on thermonuclear fusion including deuterium-tritium (D-T) fusion and D-$^{3}$He fusion in intense laser fields has been shown in this article. With the laser fields expected to be available in the near future, some…

Nuclear Theory · Physics 2022-02-09 Jintao Qi

Measurements of angular correlations between initial and final particles in $\beta$ decay remain one of the most promising ways of probing the Standard Model and looking for new physics. As experiments reach unprecedented precision well…

Nuclear Theory · Physics 2020-10-07 Leendert Hayen , Albert R. Young

Using numerical electron wave functions and state-of-the-art nuclear many-body methods, I evaluate the $\beta$-decay spectra for typical decay channels of spherical nuclei. I check errors brought by various approximations used for deriving…

Nuclear Theory · Physics 2019-07-11 Dong-Liang Fang

Scattering processes in laser backgrounds are degenerate to the emission of unobservable photons collinear with the laser. We identify processes and observables for which such degeneracies factorise and exponentiate, obtaining the…

High Energy Physics - Phenomenology · Physics 2021-01-15 James P. Edwards , Anton Ilderton

Radiation losses in the interaction of superintense circularly polarized laser pulses with high-density plasmas can lead to the generation of strong quasistatic magnetic fields via absorption of the photon angular momentum (so called…

Plasma Physics · Physics 2020-12-29 T. V. Liseykina , A. Macchi , S. V. Popruzhenko

We study the effect of magnetic field on the dominant neutrino emission processes in neutron stars.The processes are first calculated for the case when the magnetic field does not exceed the critical value to confine electrons to the lowest…

High Energy Physics - Phenomenology · Physics 2015-06-25 Ashok Goyal , V. K. Gupta , Kanupriya , Vinita Tuli

The spontaneous emission of an excited two-level emitter driven by a strong classical coherent low-frequency electromagnetic field is investigated. We find that for relatively strong laser driving, multi-photon processes are induced,…

Quantum Physics · Physics 2020-07-20 M. Macovei , J. Evers , C. H. Keitel

This paper revives the controversial debate that has arisen over the last two decades about the possibility that the electromagnetic field affects the lifetime or the decay rate of an unstable particle. In this research, we show, by…

High Energy Physics - Phenomenology · Physics 2020-12-02 S. Mouslih , M. Jakha , S. Taj , B. Manaut , E. Siher

The use of an intense ultrashort laser pulse to induce electron polarization has been proposed in existing literature. The Python programming language is used to recreate the local constant crossed-field approximation (LCFA) with the aim of…

Accelerator Physics · Physics 2024-08-20 Katherine D. Ranjbar , Emily Snyder , Alice Snyder , Vahid H. Ranjbar

Weak-interaction rates, including beta-decay and electron capture, are studied in several odd-A nuclei in the pf-shell region at various densities and temperatures of astrophysical interest. Special attention is paid to the relative…

Nuclear Theory · Physics 2017-01-06 Pedro Sarriguren

The simultaneous emission of two $\alpha$ particles--double-$\alpha$ decay--represents a long-predicted but unobserved mode of nuclear radioactivity. Here we formulate this process as a genuine three-body problem within the hyperspherical…

Nuclear Theory · Physics 2026-02-11 Shulin Tang , Tao Wan , Yibin Qian , Chong Qi , Ramon A. Wyss , Roberto J. Liotta , Dong Bai , Bo Zhou , Zhongzhou Ren