Qualitative features of fixed angle elastic scattering in perturbative QCD

1982 ◽  
Author(s):  
Bernard Pire ◽  
John P. Ralston
Keyword(s):  
Elastic Scattering ◽  
Perturbative Qcd ◽  
Fixed Angle

scholarly journals γ*γ* SCATTERING VIA SECONDARY REGGEON EXCHANGE IN QCD

2004 ◽  
Vol 19 (26) ◽  
pp. 1969-1982 ◽  
Author(s):  
JOCHEN BARTELS ◽  
MICHAEL LUBLINSKY
Keyword(s):  
Elastic Scattering ◽  
Perturbative Qcd ◽  
High Energy ◽  
Logarithmic Approximation ◽  
High Energy Behavior ◽  
Energy Behavior

We summarize the results on the high energy behavior of quark–antiquark exchange in γ*γ* elastic scattering. The ladder diagrams, summed in the double logarithmic approximation, provide a perturbative QCD model for secondary reggeon exchange.

Elastic scattering at high energy and fixed angle in QED

1982 ◽  
Vol 34 (14) ◽  
pp. 427-432 ◽  
Author(s):  
Hung Cheng ◽  
Er-Cheng Tsai ◽  
Xiquan Zhu
Keyword(s):  
Elastic Scattering ◽  
High Energy ◽  
Fixed Angle

High-energy fixed-angle elastic scattering

1975 ◽  
Vol 85 (1) ◽  
pp. 50-60 ◽  
Author(s):  
Glennys R. Farrar ◽  
Cheng-Chin Wu
Keyword(s):  
Elastic Scattering ◽  
High Energy ◽  
Fixed Angle

Multidimensional WKB approach to high-energy elastic scattering at fixed angle

1982 ◽  
Vol 26 (4) ◽  
pp. 896-907 ◽  
Author(s):  
Hung Cheng ◽  
Darryl D. Coon ◽  
Xiquan Zhu
Keyword(s):  
Elastic Scattering ◽  
High Energy ◽  
Fixed Angle

Fixed angle elastic scattering and the chromo-Coulomb phase shift

1982 ◽  
Vol 117 (3-4) ◽  
pp. 233-237 ◽  
Author(s):  
Bernard Pire ◽  
John P. Ralston
Keyword(s):  
Elastic Scattering ◽  
Phase Shift ◽  
Fixed Angle ◽  
Coulomb Phase

scholarly journals Probing perturbative QCD and nuclei with large angle elastic scattering

1988 ◽  
Author(s):  
D. S. Barton ◽  
G. M. Bunce ◽  
A. S. Carroll ◽  
S. Gushue ◽  
Y. I. Makdisi ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Perturbative Qcd ◽  
Large Angle

Fixed-angle elastic scattering

1990 ◽  
Vol 12 ◽  
pp. 53-63 ◽  
Author(s):  
James Botts ◽  
George Sterman
Keyword(s):  
Elastic Scattering ◽  
Fixed Angle

Elastic Scattering in Electron Microscopy

1973 ◽  
Vol 31 ◽  
pp. 252-253
Author(s):  
J. Langmore ◽  
M. Isaacson ◽  
J. Wall ◽  
A. V. Crewe
Keyword(s):  
Electron Microscopy ◽  
Elastic Scattering ◽  
Cross Section ◽  
Quantum Noise ◽  
Dark Field ◽  
Elastic Cross Section ◽  
Biological Molecules ◽  
Dark Field Microscopy ◽  
Field Systems ◽  
Effects Of Radiation

High resolution dark field microscopy is becoming an important tool for the investigation of unstained and specifically stained biological molecules. Of primary consideration to the microscopist is the interpretation of image Intensities and the effects of radiation damage to the specimen. Ignoring inelastic scattering, the image intensity is directly related to the collected elastic scattering cross section, σɳ, which is the product of the total elastic cross section, σ and the eficiency of the microscope system at imaging these electrons, η. The number of potentially bond damaging events resulting from the beam exposure required to reduce the effect of quantum noise in the image to a given level is proportional to 1/η. We wish to compare η in three dark field systems.

The Resolution and Contrast in Biological Sections Determined by Inelastic and Elastic Scattering

1973 ◽  
Vol 31 ◽  
pp. 224-225
Author(s):  
D. L. Misell
Keyword(s):  
Electron Microscopy ◽  
Adverse Effect ◽  
Elastic Scattering ◽  
Inelastic Scattering ◽  
Amorphous Carbon ◽  
Polymeric Materials ◽  
Chromatic Aberration ◽  
Image Resolution ◽  
Quantitative Estimates ◽  
Elastic Ratio

In the electron microscopy of biological sections the adverse effect of chromatic aberration on image resolution is well known. In this paper calculations are presented for the inelastic and elastic image intensities using a wave-optical formulation. Quantitative estimates of the deterioration in image resolution as a result of chromatic aberration are presented as an alternative to geometric calculations. The predominance of inelastic scattering in the unstained biological and polymeric materials is shown by the inelastic to elastic ratio, I/E, within an objective aperture of 0.005 rad for amorphous carbon of a thickness, t=50nm, typical of biological sections; E=200keV, I/E=16.

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