scholarly journals Infrared finite electron propagator

1997 ◽  
Vol 56 (6) ◽  
pp. 3732-3743 ◽  
Author(s):  
Emili Bagan ◽  
Martin Lavelle ◽  
David McMullan
Keyword(s):  
Electron Propagator

Electron propagator calculations on C60 and C70 photoelectron spectra

2008 ◽  
Vol 129 (10) ◽  
pp. 104306 ◽  
Author(s):  
V. G. Zakrzewski ◽  
O. Dolgounitcheva ◽  
J. V. Ortiz
Keyword(s):  
Photoelectron Spectra ◽  
Electron Propagator

scholarly journals Correction to Accurate Ionization Potentials and Electron Affinities of Acceptor Molecules IV: Electron-Propagator Methods

2016 ◽  
Vol 13 (1) ◽  
pp. 389-391 ◽  
Author(s):  
O. Dolgounitcheva ◽  
Manuel Díaz-Tinoco ◽  
V. G. Zakrzewski ◽  
Ryan M. Richard ◽  
Noa Marom ◽  
...  
Keyword(s):  
Ionization Potentials ◽  
Electron Affinities ◽  
Electron Propagator ◽  
Acceptor Molecules

Higher‐order decoupling of the electron propagator

1975 ◽  
Vol 63 (11) ◽  
pp. 5011-5017 ◽  
Author(s):  
Lynn Tyner Redmon ◽  
George Purvis ◽  
Yngve Öhrn
Keyword(s):  
Higher Order ◽  
Electron Propagator

Electron Propagator Calculations Show that Alkyl Substituents Alter Porphyrin Ionization Energies

2005 ◽  
Vol 127 (23) ◽  
pp. 8240-8241 ◽  
Author(s):  
O. Dolgounitcheva ◽  
V. G. Zakrzewski ◽  
J. V. Ortiz
Keyword(s):  
Ionization Energies ◽  
Electron Propagator

scholarly journals Worldline master formulas for the dressed electron propagator. Part 2. On-shell amplitudes

2022 ◽  
Vol 2022 (1) ◽  
Author(s):  
N. Ahmadiniaz ◽  
V. M. Banda Guzmán ◽  
F. Bastianelli ◽  
O. Corradini ◽  
J. P. Edwards ◽  
...  
Keyword(s):  
Cross Sections ◽  
Drop Out ◽  
Matrix Elements ◽  
Fermion Propagator ◽  
Particle Path ◽  
Path Integral Representation ◽  
Fermion Line ◽  
Electron Propagator ◽  
The Matrix ◽  
Standard Linear

Abstract In the first part of this series, we employed the second-order formalism and the “symbol” map to construct a particle path-integral representation of the electron propagator in a background electromagnetic field, suitable for open fermion-line calculations. Its main advantages are the avoidance of long products of Dirac matrices, and its ability to unify whole sets of Feynman diagrams related by permutation of photon legs along the fermion lines. We obtained a Bern-Kosower type master formula for the fermion propagator, dressed with N photons, in terms of the “N-photon kernel,” where this kernel appears also in “subleading” terms involving only N − 1 of the N photons.In this sequel, we focus on the application of the formalism to the calculation of on-shell amplitudes and cross sections. Universal formulas are obtained for the fully polarised matrix elements of the fermion propagator dressed with an arbitrary number of photons, as well as for the corresponding spin-averaged cross sections. A major simplification of the on-shell case is that the subleading terms drop out, but we also pinpoint other, less obvious simplifications.We use integration by parts to achieve manifest transversality of these amplitudes at the integrand level and exploit this property using the spinor helicity technique. We give a simple proof of the vanishing of the matrix element for “all +” photon helicities in the massless case, and find a novel relation between the scalar and spinor spin-averaged cross sections in the massive case. Testing the formalism on the standard linear Compton scattering process, we find that it reproduces the known results with remarkable efficiency. Further applications and generalisations are pointed out.

Sign in / Sign up

Export Citation Format

Share Document