Theoretical study of hydrogen and nitrogen interactions: N–H transport cross sections and collision integrals

1992 ◽  
Vol 97 (8) ◽  
pp. 5578-5585 ◽  
Author(s):  
James R. Stallcop ◽  
Charles W. Bauschlicher ◽  
Harry Partridge ◽  
Stephen R. Langhoff ◽  
E. Levin
Keyword(s):  
Cross Sections ◽  
Theoretical Study ◽  
Collision Integrals

Theoretical study of dynamic effects on fusion cross sections for reactions S32,34,36+Pb204,206,208

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Jian-Mei Yang ◽  
Zheng-Wei Song ◽  
Wei-Juan Zhao ◽  
Bing Wang
Keyword(s):  
Cross Sections ◽  
Theoretical Study ◽  
Dynamic Effects

Waldmann-Snider Collision Integrals and Nonspherical Molecular Interaction. I. Collision Integrals for Pure Gases

1974 ◽  
Vol 29 (12) ◽  
pp. 1705-1716 ◽  
Author(s):  
W. E. Köhler
Keyword(s):  
Angular Momentum ◽  
Cross Sections ◽  
Molecular Interaction ◽  
Scattering Amplitude ◽  
Collision Operator ◽  
Positive Definiteness ◽  
Collision Integrals ◽  
General Properties ◽  
Relaxation Coefficients ◽  
Rotational Angular Momentum

Collision integrals of the linearized Waldmann-Snider collision operator for pure gases are defined. General properties due to invariances of the molecular interaction are discussed. Effective cross sections are introduced and expressed in terms of convenient bracket symbols. The positive definiteness of the relaxation coefficients is proved. The approximation of small nonsphericity for the scattering amplitude is explained and consequences for the collision integrals are investigated. Molecular cross sections describing the orientation and reorientation of the molecular rotational angular momentum are defined. Expressions for effective cross sections relevant for the various nonequilibrium alignment phenomena are presented.

Theoretical study of the photoabsorption cross sections of HOCl and HOF

1989 ◽  
Vol 135 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Shinkoh Nambu ◽  
Kazuto Nakata ◽  
Suehiro Iwata
Keyword(s):  
Cross Sections ◽  
Theoretical Study

scholarly journals Theoretical study of the isomeric cross section of the 197Au(n,2n) reaction

2019 ◽  
Vol 18 ◽  
pp. 13
Author(s):  
A. Tsinganis ◽  
M. Diakaki ◽  
M. Kokkoris ◽  
A. Lagoyannis ◽  
C. T. Papadopoulos ◽  
...  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Isomeric State ◽  
Level Scheme ◽  
Reaction Cross Section ◽  
Theoretical Study ◽  
Strong Dependence ◽  
Mass Region ◽  
Reaction Cross ◽  
Theoretical Results

In the present work, the 197Au(n,2n) reaction cross section is studied within the framework of the Gen- eralized Superfluid Model (GSM). The cross sections for the population of the second isomeric state (12−) of 196Au and the sum of the ground (2−) and first isomeric state (5−) population cross sections were independently studied in the 8 to 25 MeV region with the use of the STAPRE-F, EMPIRE and TALYS codes, which were also compared in their implementation of the GSM. The theoretical results are compared with previous work in the same mass region and the strong dependence on the level scheme of the nuclei involved was revealed.

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