Analysis of bound-state spectra near the threshold of neutral particle interaction potentials

2006 ◽  
Vol 352 (1-2) ◽  
pp. 133-137 ◽  
Author(s):  
Fang Ou ◽  
Zhuangqi Cao ◽  
Jianping Chen ◽  
Junjie Xu
Keyword(s):  
Neutral Particle ◽  
Particle Interaction ◽  
Bound State ◽  
Interaction Potentials

Three-particle interaction in scattering on a bound state

1975 ◽  
Vol 24 (1) ◽  
pp. 681-688 ◽  
Author(s):  
A. A. Arkhipov ◽  
V. I. Savrin
Keyword(s):  
Particle Interaction ◽  
Bound State

Restoring excited particle interaction potentials from laser spectroscopy data: Na broadened by CO2 as an example

1996 ◽  
Author(s):  
Lydia P. Zarkova ◽  
Peter S. Pirgov ◽  
Gabriela V. Paeva ◽  
Nikolay T. Guerassimov ◽  
Anatoly P. Nefedov ◽  
...  
Keyword(s):  
Laser Spectroscopy ◽  
Particle Interaction ◽  
Spectroscopy Data ◽  
Interaction Potentials ◽  
Excited Particle

scholarly journals Вероятность процессов захвата электронов у атомов аргона ионами -=SUP=-3-=/SUP=-Не-=SUP=-2+-=/SUP=- при различных параметрах удара

2019 ◽  
Vol 89 (3) ◽  
pp. 342
Author(s):  
А.А. Басалаев ◽  
М.Н. Панов
Keyword(s):  
Cross Sections ◽  
Particle Interaction ◽  
Target Atom ◽  
Interaction Potentials ◽  
Atomic Particle ◽  
Total Cross Sections ◽  
Singly Charged ◽  
Scattering Cross Sections ◽  
The Impact ◽  
Argon Ion

AbstractWe have measured the absolute values of total cross sections of capture of one and two electrons by He^2+ ions from argon atoms. The differential scattering cross sections have been determined for fast atoms and singly charged helium ions formed in each of these processes (without and with additional ionization of the formed slow argon ion). Measurements have been taken for He^2+ ions with kinetic energy of 6 keV in scattering angle range 0–2.5°. Based on the measured differential cross sections using different model atomic particle interaction potentials, we have calculated the cross sections of these processes as functions of the impact parameter. The probabilities of realization of these processes with electron density distribution in different shells in the target atom have been compared. The applicability of the expressions for the screened Coulomb interaction potentials in the description of scattering of particles that have captured electrons has been demonstrated.

scholarly journals Effects on a Landau-type system for a neutral particle with no permanent electric dipole moment subject to the Kratzer potential in a rotating frame

2016 ◽  
Vol 472 (2190) ◽  
pp. 20150858 ◽  
Author(s):  
Abinael B. Oliveira ◽  
Knut Bakke
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Neutral Particle ◽  
Type System ◽  
Bound State ◽  
Angular Frequency ◽  
Rotating Frame ◽  
Permanent Electric Dipole Moment ◽  
Quantum Numbers

The behaviour of a neutral particle (atom, molecule) with an induced electric dipole moment in a region with a uniform effective magnetic field under the influence of the Kratzer potential (Kratzer 1920 Z. Phys. 3 , 289–307. ( doi:10.1007/BF01327754 )), and rotating effects is analysed. It is shown that the degeneracy of the Landau-type levels is broken and the angular frequency of the system acquires a new contribution that stems from the rotation effects. Moreover, in the search for bound state solutions, it is shown that the possible values of this angular frequency of the system are determined by the quantum numbers associated with the radial modes and the angular momentum, the angular velocity of the rotating frame and by the parameters associated with the Kratzer potential.

Viscoelastic Probes of Suspension Structure

1986 ◽  
Vol 73 ◽  
Author(s):  
C. F. Zukoski ◽  
J. W. Goodwin ◽  
R. W. Hughes ◽  
S. J. Partridge
Keyword(s):  
High Frequency ◽  
Volume Fraction ◽  
Particle Interaction ◽  
Pair Interaction ◽  
Particle Interactions ◽  
Concentrated Suspensions ◽  
Interaction Potentials ◽  
Particle Distributions ◽  
Powder Compacts ◽  
Suspension Structure

ABSTRACTThe use of the high frequency elastic modulus, G∞, to probe particle interactions in weakly agglomerated, concentrated suspensions is discussed. We show that a model based on pair interaction potentials and a statistical description of pair spatial distribution yields accurate prediction of the volume fraction dependence of G∞. The use of statistical treatments of particle distributions as predicted from particle interaction potentials is found to provide insight on how surface chemistry affects the uniformity of powder compacts.

Negative Isotope Effect in Superconductivity from Non-Retarded Repulsive Interaction

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3458-3464 ◽  
Author(s):  
J. D. Fan ◽  
Y. M. Malozovsky
Keyword(s):  
Isotope Effect ◽  
Scattering Amplitude ◽  
Effective Interaction ◽  
Particle Interaction ◽  
Bound State ◽  
Repulsive Interaction ◽  
Phonon Interaction ◽  
Breaking Effect ◽  
Electron Phonon Interaction ◽  
Spin Singlet

We have examined the isotope effect in superconductivity due to the repulsive interaction. The equation for the temperature of transition to the superconducting state is derived in terms of the temperature Bethe–Salpeter equation for a bound state of two fermions in the spin-singlet state. The effective interaction in the equation for Tc is written in terms of the effective scattering amplitude, thus providing the validity of the equation for the non-retarded interaction. The superconducting phase transition occurs due to non-retarded repulsive inter-particle interaction. In contrast, additional retarded electron-phonon interaction contributes to the pair-breaking effect. We have shown that the isotope effect coefficient α is negative in this case.

scholarly journals The TDHF Approximation for Hamiltonians with $m$-particle Interaction Potentials

2007 ◽  
Vol 5 (5) ◽  
pp. 1-9 ◽  
Author(s):  
Claude Bardos ◽  
Bernard Ducomet ◽  
François Golse ◽  
Alex D. Gottlieb ◽  
Norbert J. Mauser
Keyword(s):  
Particle Interaction ◽  
Interaction Potentials

On noninertial effects inducing a confinement of a neutral particle to a hard-wall confining potential

Open Physics ◽  
2013 ◽  
Vol 11 (11) ◽  
Author(s):  
Knut Bakke
Keyword(s):  
Bound States ◽  
Magnetic Dipole Moment ◽  
Neutral Particle ◽  
Energy Levels ◽  
Bound State ◽  
Field Configuration ◽  
Hard Wall ◽  
Confining Potential ◽  
Noninertial Effects

AbstractIn this contribution, we discuss the confinement of a nonrelativistic spin-half neutral particle to a hard-wall confining potential induced by noninertial effects. We show that the geometry of the manifold plays the role of a hard-wall confining potential and yields bound state solutions. We also consider a neutral particle with a permanent magnetic dipole moment interacting with a field configuration induced by noninertial effects, and discuss the behaviour of the induced fields and obtain energy levels for bound states.

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