scholarly journals Time delay in slow electron elastic scattering by potentials with arising levels

2020 ◽  
Vol 1412 ◽  
pp. 182010
Author(s):  
M Ya Amusia ◽  
A S Baltenkov
Keyword(s):  
Time Delay ◽  
Elastic Scattering ◽  
Slow Electron

scholarly journals Time Delay in Electron Collision with a Spherical Target as a Function of the Scattering Angle

Atoms ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 105
Author(s):  
Miron Ya. Amusia ◽  
Arkadiy S. Baltenkov ◽  
Igor Woiciechowski
Keyword(s):  
Time Delay ◽  
Elastic Scattering ◽  
Hard Sphere ◽  
Time Delays ◽  
Electron Collision ◽  
Potential Fields ◽  
Slow Electron ◽  
Potential Well ◽  
Spherical Target ◽  
Slow Electrons

We have studied the angular time delay in slow-electron elastic scattering by spherical targets as well as the average time delay of electrons in this process. It is demonstrated how the angular time delay is connected to the Eisenbud–Wigner–Smith (EWS) time delay. The specific features of both angular and energy dependencies of these time delays are discussed in detail. The potentialities of the derived general formulas are illustrated by the numerical calculations of the time delays of slow electrons in the potential fields of both absolutely hard-sphere and delta-shell potential well of the same radius. The conducted studies shed more light on the specific features of these time delays.

Slow-electron elastic scattering on argon

1982 ◽  
Vol 25 (1) ◽  
pp. 219-225 ◽  
Author(s):  
M. Ya. Amusia ◽  
N. A. Cherepkov ◽  
L. V. Chernysheva ◽  
Dragomir M. Davidović ◽  
Vojislav Radojević
Keyword(s):  
Elastic Scattering ◽  
Slow Electron

Time-delay effects on K-shell ionization in the elastic scattering 56Fe(p, p)

1992 ◽  
Vol 548 (3) ◽  
pp. 374-380
Author(s):  
D. Fang ◽  
Z. Guo ◽  
Y. Wang ◽  
J. Xu ◽  
F. Yang ◽  
...  
Keyword(s):  
Time Delay ◽  
Elastic Scattering ◽  
Delay Effects ◽  
Shell Ionization

scholarly journals Elastic scattering of slow electrons by carbon nanotubes

2021 ◽  
Author(s):  
Miron Ya. Amusia ◽  
Arkadiy S Baltenkov
Keyword(s):  
Carbon Nanotubes ◽  
Elastic Scattering ◽  
Cross Sections ◽  
Angular Distributions ◽  
Slow Electron ◽  
Scattering Cross ◽  
Angular Momenta ◽  
Incoming Electron ◽  
Slow Electrons ◽  
Scattering Cross Sections

Abstract In this paper we calculate the elastic scattering cross sections of slow electron by carbon nanotubes. The corresponding electron-nanotube interaction is substituted by a zero-thickness cylindrical potential that neglects the atomic structure of real nanotubes, thus limiting the range of applicability of our approach to sufficiently low incoming electron energies. The strength of the potential is chosen the same that was used in describing scattering of electrons by fullerene C60. We present results for total and partial electron scattering cross sections as well as respective angular distributions, all with account of five lowest angular momenta contributions. In the calculations we assumed that the incoming electron moves perpendicular to the nanotube axis, since along the axis the incoming electron moves freely.

scholarly journals EVIDENCE OF PENTAQUARK STATES FROM K+N SCATTERING DATA?

2004 ◽  
Vol 19 (26) ◽  
pp. 2001-2008 ◽  
Author(s):  
N. G. KELKAR ◽  
M. NOWAKOWSKI ◽  
K. P. KHEMCHANDANI
Keyword(s):  
Time Delay ◽  
Elastic Scattering ◽  
Experimental Evidence ◽  
Partial Wave ◽  
Scattering Data ◽  
Spin Orbit ◽  
Partial Waves ◽  
Pros And Cons ◽  
Existing Data

Motivated by the recent experimental evidence of the exotic B=S=+1 baryonic state Θ (1540), we examine the older existing data on K+N elastic scattering through the time delay method. We find positive peaks in time delay around 1.545 and 1.6 GeV in the D03 and P01 partial waves of K+N scattering respectively, in agreement with experiments. We also find an indication of the J=3/2 Θ* spin-orbit partner to the Θ, in the P03 partial wave at 1.6 GeV. We discuss the pros and cons of these findings in support of the interpretation of these peaks as possible exotics.

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