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Lepto-nuclear colliders offer unique experimental opportunities to probe QCD in an extended medium. Of the many possibilities, three experiments are described here that are clearly feasible and of high scientific importance. First, a direct…

Nuclear Experiment · Physics 2010-11-19 W K Brooks

We investigate the process of nuclear excitation via a two-photon electron transition (NETP) for the case of the doubly charged thorium. The theory of the NETP process has been devised originally for heavy helium-like ions. In this work, we…

Atomic Physics · Physics 2019-05-17 Robert A. Müller , Andrey V. Volotka , Andrey Surzhykov

The longer-lived excited nuclear states, referred as nuclear isomers, exist due to the hindered decays owing to their peculiar nucleonic structural surroundings. Some of these conditions, being exceptionally rare and limited to achieve,…

Nuclear Theory · Physics 2024-02-07 Bhoomika Maheshwari , Ashok Kumar Jain

Previously we proposed a new approach of exciting the $^{229}$Th nucleus using laser-driven electron recollision [W. Wang et al., Phys. Rev. Lett. 127, 052501 (2021)]. The current article is aimed to elaborate the method by explaining…

Atomic Physics · Physics 2022-08-15 Xu Wang

We present the first calculation of quantum electrodynamics (QED) nuclear medium effects under the experimental conditions of future Electron-Ion Collider (EIC) experiments. Our work offers numerical estimates, particularly in the context…

Nuclear Theory · Physics 2025-08-11 Shohini Bhattacharya , Oleksandr Tomalak , Ivan Vitev

Double-beta processes play a key role in the exploration of neutrino and weak interaction properties, and in the searches for effects beyond the Standard Model. During the last half century many attempts were undertaken to search for…

High Energy Physics - Phenomenology · Physics 2020-12-18 K. Blaum , S. Eliseev , F. A. Danevich , V. I. Tretyak , Sergey Kovalenko , M. I. Krivoruchenko , Yu. N. Novikov , J. Suhonen

The aim of the present overview article is to raise awareness of an essential aspect that is usually not accounted for in the modelling of electron transport for focused-electron-beam-induced deposition (FEBID) of nanostructures: surface…

Mesoscale and Nanoscale Physics · Physics 2015-06-29 Francesc Salvat-Pujol , Roser Valenti , Wolfgang S. Werner

We discuss the possibility of non-exponential tunneling ionization of atoms irradiated by intense laser field. This effect can occur at times, which are greater than the lifetime of a system under consideration. The mechanism for…

Atomic Physics · Physics 2015-03-02 A. M. Ishkhanyan , V. P. Krainov

Photon-induced nuclear excitation (i.e. photo-excitation) can be used for production of nuclear isomers, which have potential applications in astrophysics, energy storing, and medical diagnosis and treatment. This paper presents a…

Nuclear Experiment · Physics 2020-12-18 Wan-ting Pan , Hao-yang Lan , Zhi-guo Ma , Zhi-chao Zhu , Wen Luo

Nuclear excitation cross section of $^{229}$Th from the ground state to the low-lying isomeric state via inelastic electron scattering is calculated, on the level of Dirac distorted wave Born approximation. With electron energies below 100…

Nuclear Theory · Physics 2022-07-19 Hanxu Zhang , Wu Wang , Xu Wang

We offer a new theoretical interpretation for the effect of enhanced electron density at $^7$Be nucleus encapsulated in fullerene C$_{60}$. Our {\it{ab initio}} Hartree-Fock calculations show that electron density at the $^7$Be nucleus in…

Nuclear Theory · Physics 2010-04-06 E. V. Tkalya , A. V. Bibikov , I. V. Bodrenko

The nuclear evaporation process is reformulated by taking into account simultaneous multiparticle emission from a hot compound nucleus appearing as an intermediate state in many nuclear reaction mechanisms. The simultaneous emission of many…

Nuclear Theory · Physics 2012-08-09 Leonardo P. G. De Assis , Sergio B. Duarte , Bianca M. Santos

In the framework of the Standard Model with lepton mixing the radiative decay $\nu_i \rightarrow \nu_j \gamma$ of a neutrino of high ($E_\nu \sim 100 \, GeV$) and super-high ($E_\nu \ge 1 \, TeV$) energy is investigated in the Coulomb field…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. A. Gvozdev , N. V. Mikheev , L. A. Vassilevskaya

The new regime of resonant nuclear photoexcitation rendered possible by x-ray free electron laser beams interacting with solid state targets is investigated theoretically. Our results unexpectedly show that secondary processes coupling…

Nuclear Theory · Physics 2014-02-28 Jonas Gunst , Yuri A. Litvinov , Christoph H. Keitel , Adriana Pálffy

Low-energy heavy-ion induced reactions often involve incomplete fusion, but the dependence of ICF on various entrance-channel parameters remains unclear. In this work, we measure channel-by-channel production cross-sections of different…

Excitation functions were measured by stacked-foil activation technique for the $^{150}$Nd(p, xpyn) reaction using 97.65$%$ enriched $^{150}$Nd target. Measurement up to $\sim$50$%$ above barrier and down to 18$%$ below the barrier was…

In an attempt to replicate work performed elsewhere [1], we have searched for x-ray induced nuclear activation of deuterated materials. Our first results, reported in September 2015, showed no evidence of nuclear activation, contrary to the…

Instrumentation and Detectors · Physics 2017-09-11 Rob Davies

Capture of electrons by nuclei is an important process in stellar environments where excited nuclear states are thermally populated. However, accurate treatment for excited configurations in electron capture (EC) rates has been an unsolved…

Nuclear Theory · Physics 2022-01-05 Long-Jun Wang , Liang Tan , Zhipan Li , Bingshui Gao , Yang Sun

Absolute cross sections are measured for charge-exchange, ionization, and excitation within the same experimental setup for the Li$^{+}-$Ar, K$^{+}-$ Ar, and Na$^{+}-$ He collisions in the ion energy range $0.5-10$ keV. Results of our…