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The general expression for excitation cross section of polarized atoms by polarized electrons is derived by using the methods of the theory of an atom adapted for polarization. The special cases of the general expression for the description…

Atomic Physics · Physics 2007-05-23 A. Kupliauskiene

Following our recent numerical study [arXiv:2601.16299 (2026)], we investigate vibrational excitation induced by transient optical driving in molecular ensembles strongly coupled to a cavity mode using the field-driven…

We review experimental and theoretical cross sections for electron scattering in nitric oxide (NO) and form a comprehensive set of plausible cross sections. To assess the accuracy and self-consistency of our set, we also review electron…

Chemical Physics · Physics 2021-10-26 Peter W. Stokes , Ronald D. White , Laurence Campbell , Michael J. Brunger

The influence of vibrational motion on electron conduction through single molecules bound to metal electrodes is investigated employing first-principles electronic-structure calculations and projection-operator Green's function methods.…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 C. Benesch , M. Thoss , W. Domcke , M. Cizek

We report novel total electron scattering cross sections (TCS) from nitric oxide (NO) in the impact energy range from 1 to 15 eV by using a magnetically confined electron transmission apparatus. The accuracy of the data to within 5% and its…

Chemical Physics · Physics 2025-05-09 Ana I. Lozano , Juan C. Oller , Paulo Limão-Vieira , Gustavo García

We present benchmark integrated and differential cross-sections for electron collisions with H$_2$ using two different theoretical approaches, namely, the R-matrix and molecular convergent close-coupling (MCCC). This is similar to…

Chemical Physics · Physics 2020-08-31 T. Meltzer , J. Tennyson , Z. Mašín , M. C. Zammit , L. H. Scarlett , D. V. Fursa , I. Bray

The dipolar dissociation of molecular oxygen due to 21-35 eV energy electron collision has been studied using the time sliced velocity map imaging technique. A rough estimation about the threshold of the process and the kinetic energy and…

Atomic and Molecular Clusters · Physics 2016-08-31 Pamir Nag , Dhananjay Nandi

We present a new theoretical approach to neutrino-impact atomic excitation and/or ionization due to neutrino magnetic moments. The differential cross section of the process is given by a sum of the longitudinal and transverse terms, which…

High Energy Physics - Phenomenology · Physics 2011-08-16 Konstantin A. Kouzakov , Alexander I. Studenikin

We present laboratory spectra of the $3p$--$3d$ transitions in Fe$^{14+}$ and Fe$^{15+}$ excited with a mono-energetic electron beam. In the energy dependent spectra obtained by sweeping the electron energy, resonant excitation is confirmed…

We study a scheme for electrical detection, using electron spin resonance, of coherent vibrations in a molecular single electron level trapped near a conduction channel. Both equilibrium spin-currents and non-equilibrium spin- and charge…

Mesoscale and Nanoscale Physics · Physics 2008-09-17 J. Fransson , Jian-Xin Zhu

In our earlier papers we have proposed an analytically solvable model for the two state curve crossing problem which assumes the coupling to be a Dirac delta function. It is used to calculate the effect of curve crossing on electronic…

Quantum Physics · Physics 2011-12-24 Aniruddha Chakraborty

The inelastic scattering of electrons on weakly-bound nuclei is studied with a simple model based on the long range behavior of the bound state wavefunction and on the effective-range expansion for the continuum wavefunctions. Three…

Nuclear Theory · Physics 2009-11-11 C. A. Bertulani

We investigate the resonant process of nuclear excitation by electron capture, in which a continuum electron is captured into a bound state of an ion with the simultaneous excitation of the nucleus. In order to derive the cross section a…

Atomic Physics · Physics 2008-11-26 Adriana Pálffy , Zoltán Harman , Werner Scheid

In this paper, we present a method to generate state-resolved reaction cross sections in analytical form for rovibrational energy excitation and dissociation of a molecular gas. The method is applied to an ab initio database for the N2-N…

Chemical Physics · Physics 2020-03-20 Erik Torres , Richard L. Jaffe , David Schwenke , Thierry E. Magin

The detection of vibrational excitations of individual molecules on surfaces by scanning tunneling spectroscopy does not obey strict selection rules but rather propensity rules. The experimental verification of these is challenging because…

Emission lines from highly-excited states (n >= 5) of H- and He-like ions have been detected in astrophysical sources and fusion plasmas. For such excited states, R-matrix or distorted wave calculations for electron-impact excitation are…

Instrumentation and Methods for Astrophysics · Physics 2016-08-17 L. Fernandez-Menchero , G. Del Zanna , N. R. Badnell

Collisional excitation rate coefficients play an important role in the dynamics of energy transfer in the interstellar medium. In particular, accurate rotational excitation rates are needed to interpret microwave and infrared observations…

Solar and Stellar Astrophysics · Physics 2015-06-10 Benhui Yang , K. M. Walker , R. C. Forrey , P. C. Stancil , N. Balakrishnan

We present a comprehensive study of electron collisions with calcium atoms by using the convergent \emph{B}-spline \emph{R}-matrix method. Elastic, excitation, and ionization cross sections were obtained for all transitions between the…

Atomic Physics · Physics 2019-01-16 Oleg Zatsarinny , Henry Parker , Klaus Bartschat

We have investigated the universal scaling behavior of differential cross sections for the single K-shell ionization by electron or positron impact. The study is performed within the framework of non-relativistic perturbation theory, taking…

Atomic Physics · Physics 2015-05-14 A. I. Mikhailov , A. V. Nefiodov , G. Plunien

A numerical simulation of vibrational excitation of molecules was devised, and used to excite computational models of common molecules into a prescribed, pure, normal vibration mode in the ground electronic state, with varying, controlable…

Astrophysics · Physics 2009-11-11 Renaud Papoular
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