On the role of the cross-section normalization in the conclusions drawn from the coupled-channel collective model analysis of the inelastic scattering experiments

1974 ◽  
Vol 37 (3) ◽  
pp. 275-279
Author(s):  
Á. Kiss
Keyword(s):  
Inelastic Scattering ◽  
Cross Section ◽  
Model Analysis ◽  
Collective Model ◽  
The Cross ◽  
Coupled Channel

The Role of Expectations in Explaining the Cross-Section of Stock Returns

2004 ◽  
Vol 9 (2/3) ◽  
pp. 149-188 ◽  
Author(s):  
Tom Copeland ◽  
Aaron Dolgoff ◽  
Alberto Moel
Keyword(s):  
Stock Returns ◽  
Cross Section ◽  
The Cross

Z Dependence of Electron Scattering by Single Atoms into Annular Dark-Field Detectors

2011 ◽  
Vol 17 (6) ◽  
pp. 847-858 ◽  
Author(s):  
Michael M.J. Treacy
Keyword(s):  
Elastic Scattering ◽  
Inelastic Scattering ◽  
Cross Section ◽  
Electron Scattering ◽  
Dark Field ◽  
Single Atom ◽  
Single Atoms ◽  
Annular Dark Field ◽  
Annular Detector ◽  
The Cross

AbstractA simple parameterization is presented for the elastic electron scattering cross sections from single atoms into the annular dark-field (ADF) detector of a scanning transmission electron microscope (STEM). The dependence on atomic number, Z, and inner reciprocal radius of the annular detector, q0, of the cross section σ(Z,q0) is expressed by the empirical relationwhere A(q0) is the cross section for hydrogen (Z = 1), and the detector is assumed to have a large outer reciprocal radius. Using electron elastic scattering factors determined from relativistic Hartree-Fock simulations of the atomic electron charge density, values of the exponent n(Z,q0) are tabulated as a function of Z and q0, for STEM probe sizes of 1.0 and 2.0 Å.Comparison with recently published experimental data for single-atom scattering [Krivanek et al. (2010). Nature464, 571–574] suggests that experimentally measured exponent values are systematically lower than the values predicted for elastic scattering from low-Z atoms. It is proposed that this discrepancy arises from the inelastic scattering contribution to the ADF signal. A simple expression is proposed that corrects the exponent n(Z,q0) for inelastic scattering into the annular detector.

scholarly journals The Dynamic Collective Model Interpretation of the Photoneutron Cross Section of 181Ta

1973 ◽  
Vol 26 (5) ◽  
pp. 585 ◽  
Author(s):  
RS Hicks ◽  
BM Spicer
Keyword(s):  
Fine Structure ◽  
Excitation Energy ◽  
Cross Section ◽  
Neutron Detection ◽  
Collective Model ◽  
High Excitation ◽  
Absolute Value ◽  
Model Interpretation ◽  
Quadrupole Resonance ◽  
The Cross

The cross section for photoneutron production in 181Ta has been measured from threshold to 28� 8 MeV using bremsstrahlung and direct neutron detection. Integrated between these limits, the absolute value of the cross section has been determined to be 2 '47 �O' 35 MeV. b. An examination of the cross section variation with excitation energy reveals the existence of the giant quadrupole resonance lying on the high excitation edge of the dipole peak. This provides additional evidence for the validity of the dynamic collective model. The present data do not support the existence of extensive fine structure below 17 MeV, as proposed by Ishkhanov et al. (1969).

Role of the Cross Section Geometry in Rectangular ${\rm Nb}_{3}{\rm Sn}$ CICC Performances

2011 ◽  
Vol 21 (3) ◽  
pp. 2032-2035 ◽  
Author(s):  
Simonetta Turtu ◽  
Luigi Muzzi ◽  
Chiarasole Fiamozzi Zignani ◽  
Valentina Corato ◽  
Antonio della Corte ◽  
...  
Keyword(s):  
Cross Section ◽  
The Cross ◽  
Cross Section Geometry

N* RESONANCES IN NEUTRINO INTERACTIONS

2014 ◽  
Vol 26 ◽  
pp. 1460111
Author(s):  
L. ALVAREZ-RUSO
Keyword(s):  
Cross Section ◽  
Form Factors ◽  
Experimental Information ◽  
Transition Form ◽  
Neutrino Interactions ◽  
Neutrino Cross Section ◽  
The Cross

The role of N* resonances in neutrino interactions with nucleons is discussed, stressing the relevance for neutrino cross-section and oscillation experiments. The cross section for single N* weak excitation is expressed in terms of vector and axial transition form factors, which can be partially constrained using the available experimental information from photon, electron and pion reactions on the nucleon. New measurements on hydrogen and deuterium are necessary to reduce further the uncertainties.

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