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We study the two-neutrino double electron capture on $^{124}$Xe based on an effective theory (ET) and large-scale shell model calculations, two modern nuclear structure approaches that have been tested against Gamow-Teller and double-beta…

Nuclear Theory · Physics 2019-10-02 E. A. Coello Pérez , J. Menéndez , A. Schwenk

The production of neutrons carrying at least 20% of the proton beam energy ($\xl > 0.2$) in $e^+p$ collisions has been studied with the ZEUS detector at HERA for a wide range of $Q^2$, the photon virtuality, from photoproduction to deep…

High Energy Physics - Experiment · Physics 2008-11-26 ZEUS Collaboration , S. Chekanov

The past decade has witnessed tremendous progress in the theoretical and computational tools that produce our understanding of nuclei. A number of microscopic calculations of nuclear electroweak structure and reactions have successfully…

Nuclear Theory · Physics 2018-03-14 Saori Pastore

In this work we review the classical recipe for estimating partial cross sections for electron capture into selected energy levels within the Classical Trajectory Monte Carlo (CTMC) method [R.L. Becker and A.D. MacKellar, J. Phys. B: At.…

Atomic Physics · Physics 2007-05-23 F. Sattin

An overview of quantum-mechanical methods to generate cross-section data for electron collisions with atoms and molecules is presented. Particular emphasis is placed on the time-independent close-coupling approach, since it is particularly…

Plasma Physics · Physics 2016-10-21 Klaus Bartschat , Jonathan Tennyson , Oleg Zatsarinny

We consider the electron density at the position of an ion of charge Ze in a plasma under conditions approximating those in the core of the sun. Numerical calculations have shown that the plasma effects on the density, over and above the…

Astrophysics · Physics 2008-11-26 Lowell S. Brown , R. F. Sawyer

Both components of the Standard Model, QCD and the electroweak sector, are tested in the H1 and ZEUS experiments at HERA. The inclusive ep single and double differential cross sections for neutral and charged current processes are measured…

High Energy Physics - Experiment · Physics 2007-05-23 Vladimir Chekelian

Electron capture and beta-decay rates for nuclear pairs in sd-shell are evaluated at high densities and high temperatures relevant to the final evolution of electron-degenerate O-Ne-Mg cores of stars with the initial masses of 8-10 solar…

Solar and Stellar Astrophysics · Physics 2016-02-17 Toshio Suzuki , Hiroshi Toki , Ken'ichi Nomoto

50% of the heavy element abundances are produced via slow neutron capture reactions in different stellar scenarios. The underlying nucleosynthesis models need the input of neutron capture cross sections. One of the fundamental signatures…

A direct measurement of the ground-state-to-ground-state electron-capture decay $Q$ ($Q_{\rm EC}$) value of $^{97}$Tc has been conducted employing the high resolving power phase-imaging ion-cyclotron-resonance technique with the double…

At finite temperatures ($\geq 10^7$K), $^{76}$Se is abundant in the core of massive stars and electron capture on $^{76}$Se has a consequential role to play in the dynamics of core collapse. The present work may be classified into two main…

Nuclear Theory · Physics 2025-03-12 Jameel-Un Nabi , Mavra Ishfaq , Mahmut Boyukata , Muhammad Riaz

Lepton (electron and positron) capture rates on iron-regime nuclei are an essential element for modeling the late stages in the evolution of massive stars that end as core-collapse and thermonuclear supernovae. Previous simulation studies…

Nuclear Theory · Physics 2025-04-15 Ramoona Shehzadi , Jameel-Un Nabi , Fakeha Farooq

Due to $e^+e^-$-pair production in the field of supercritical $(Z \gg Z_{cr}\approx 170 $) nucleus an electron shell, created out of the vacuum, is formed. The distribution of the vacuum charge in this shell has been determined for…

Solar and Stellar Astrophysics · Physics 2015-05-18 Vladimir Popov

The recent x>1 (e,e') and correlation experiments at momentum transfer Q^2 \ge 2 GeV^2 confirm presence of short-range correlations (SRC) in nuclei mostly build of nucleons. Recently we evaluated in a model independent way the dominant…

Nuclear Theory · Physics 2015-05-30 Mark Strikman

The inclusive e^-p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA, in the range of four-momentum transfer squared Q^2 between 150 and 30000 GeV^2, and…

High Energy Physics - Experiment · Physics 2009-01-07 H1 Collaboration , C. Adloff

A thorough understanding of the energy transfer mechanism from the electric field to electrons is of utmost importance for optimization and control of different plasma sources and processes. This mechanism, called electron power absorption,…

Electric dipole moment (EDM) measurements using paramagnetic molecules have significantly advanced over the last decade. Traditionally, these experiments have been analyzed in terms of the electron EDM. However, paramagnetic molecules are…

High Energy Physics - Phenomenology · Physics 2026-05-20 Wouter Dekens , Jordy de Vries , Lemonia Gialidi , Javier Menéndez , Heleen Mulder , Beatriz Romeo

With the R$^{3}$B-LAND setup at GSI we have measured exclusive relative-energy spectra of the Coulomb dissociation of $^{18}$C at a projectile energy around 425~AMeV on a lead target, which are needed to determine the radiative…

Nuclear Experiment · Physics 2017-02-08 M. Heine , S. Typel , M. -R. Wu , T. Adachi , Y. Aksyutina , J. Alcantara , S. Altstadt , H. Alvarez-Pol , N. Ashwood , T. Aumann , V. Avdeichikov , M. Barr , S. Beceiro-Novo , D. Bemmerer , J. Benlliure , C. A. Bertulani , K. Boretzky , M. J. G. Borge , G. Burgunder , M. Caamano , C. Caesar , E. Casarejos , W. Catford , J. Cederkäll , S. Chakraborty , M. Chartier , L. V. Chulkov , D. Cortina-Gil , R. Crespo , U. Datta Pramanik , P. Diaz Fernandez , I. Dillmann , Z. Elekes , J. Enders , O. Ershova , A. Estrade , F. Farinon , L. M. Fraile , M. Freer , M. Freudenberger , H. O. U. Fynbo , D. Galaviz , H. Geissel , R. Gernhäuser , K. Göbel , P. Golubev , D. Gonzalez Diaz , J. Hagdahl , T. Heftrich , M. Heil , A. Heinz , A. Henriques , M. Holl , G. Ickert , A. Ignatov , B. Jakobsson , H. T. Johansson , B. Jonson , N. Kalantar-Nayestanaki , R. Kanungo , A. Kelic-Heil , R. Knöbel , T. Kröll , R. Krücken , J. Kurcewicz , N. Kurz , M. Labiche , C. Langer , T. Le Bleis , R. Lemmon , O. Lepyoshkina , S. Lindberg , J. Machado , J. Marganiec , G. Martínez-Pinedo , V. Maroussov , M. Mostazo , A. Movsesyan , A. Najafi , T. Neff , T. Nilsson , C. Nociforo , V. Panin , S. Paschalis , A. Perea , M. Petri , S. Pietri , R. Plag , A. Prochazka , A. Rahaman , G. Rastrepina , R. Reifarth , G. Ribeiro , M. V. Ricciardi , C. Rigollet , K. Riisager , M. Röder , D. Rossi , J. Sanchez del Rio , D. Savran , H. Scheit , H. Simon , O. Sorlin , V. Stoica , B. Streicher , J. T. Taylor , O. Tengblad , S. Terashima , R. Thies , Y. Togano , E. Uberseder , J. Van de Walle , P. Velho , V. Volkov , A. Wagner , F. Wamers , H. Weick , M. Weigand , C. Wheldon , G. Wilson , C. Wimmer , J. S. Winfield , P. Woods , D. Yakorev , M. V. Zhukov , A. Zilges , K. Zuber

Purpose : The aim of this paper is to calculate the $^{15}$N($n, \gamma$)$^{16}$N radiative capture cross section and its subsequent reaction rate by an indirect method and in that process investigate the effects of spectroscopic factors of…

Nuclear Theory · Physics 2015-10-13 Neelam , Shubhchintak , R. Chatterjee

The electron-neutrino charged-current quasielastic (CCQE) cross section on nuclei is an important input parameter for electron neutrino appearance oscillation experiments. Current experiments typically begin with the muon neutrino cross…

High Energy Physics - Experiment · Physics 2019-08-13 J. Wolcott