scholarly journals Sum rules for total cross sections of hadron photoproduction on ground state1/2+octet baryons

2007 ◽  
Vol 75 (5) ◽  
Author(s):  
S. Dubnička ◽  
A. Z. Dubničková ◽  
E. A. Kuraev
Keyword(s):  
Cross Sections ◽  
Sum Rules ◽  
Total Cross Sections ◽  
Octet Baryons

Analysis of $$K{\mathcal{N}}$$ total cross-sections with continuous moment sum rulestotal cross-sections with continuous moment sum rules

1968 ◽  
Vol 57 (2) ◽  
pp. 442-445 ◽  
Author(s):  
C. Ferro Fontán ◽  
M. Lusignoli ◽  
R. Odorico ◽  
M. Restignoli ◽  
G. Violini
Keyword(s):  
Cross Sections ◽  
Sum Rules ◽  
Total Cross Sections

Quark-Model Sum Rules for Hyperon-Nucleon Total Cross Sections

1971 ◽  
Vol 4 (7) ◽  
pp. 2017-2020 ◽  
Author(s):  
P. B. James ◽  
John M. Rawls
Keyword(s):  
Quark Model ◽  
Cross Sections ◽  
Sum Rules ◽  
Total Cross Sections

scholarly journals Finite-Energy Sum Rules and Evidence for Rapid Rise of  p and pp Total Cross Sections

1976 ◽  
Vol 55 (5) ◽  
pp. 1504-1513 ◽  
Author(s):  
T. Miyakoshi ◽  
A. Kanazawa ◽  
N. Hashimoto
Keyword(s):  
Cross Sections ◽  
Sum Rules ◽  
Finite Energy ◽  
Rapid Rise ◽  
Total Cross Sections

Analysis of STEM micrographs of thick objects

1978 ◽  
Vol 36 (2) ◽  
pp. 106-107
Author(s):  
S. Golladay
Keyword(s):  
Inelastic Scattering ◽  
Multiple Scattering ◽  
Mass Distribution ◽  
Cross Sections ◽  
Phase Contrast ◽  
Image Point ◽  
Contrast Effects ◽  
Total Cross Sections ◽  
Elastic And Inelastic Scattering

The theory of multiple scattering has been worked out by Groves and comparisons have been made between predicted and observed signals for thick specimens observed in a STEM under conditions where phase contrast effects are unimportant. Independent measurements of the collection efficiencies of the two STEM detectors, calculations of the ratio σe/σi = R, where σe, σi are the total cross sections for elastic and inelastic scattering respectively, and a model of the unknown mass distribution are needed for these comparisons. In this paper an extension of this work will be described which allows the determination of the required efficiencies, R, and the unknown mass distribution from the data without additional measurements or models. Essential to the analysis is the fact that in a STEM two or more signal measurements can be made simultaneously at each image point.

scholarly journals Total cross sections of eγ → $$ eX\overline{X} $$ processes with X = μ, γ, e via multiloop methods

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Roman N. Lee ◽  
Alexey A. Lyubyakin ◽  
Vyacheslav A. Stotsky
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Elliptic Integral ◽  
High Energy ◽  
Calculation Methods ◽  
Complete Elliptic Integral ◽  
Total Cross Sections ◽  
Multiloop Calculation ◽  
The Cross ◽  
Analytical Expressions

Abstract Using modern multiloop calculation methods, we derive the analytical expressions for the total cross sections of the processes e−γ →$$ {e}^{-}X\overline{X} $$ e − X X ¯ with X = μ, γ or e at arbitrary energies. For the first two processes our results are expressed via classical polylogarithms. The cross section of e−γ → e−e−e+ is represented as a one-fold integral of complete elliptic integral K and logarithms. Using our results, we calculate the threshold and high-energy asymptotics and compare them with available results.

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