Multidimensional Molecular Steric Opacity Function for XeCl*(B, C) Formation in the Oriented Xe* (3P2, MJ= 2) + Oriented CCl3F Reaction

2010 ◽  
Vol 114 (43) ◽  
pp. 11386-11392 ◽  
Author(s):  
H. Ohoyama
Keyword(s):  
Opacity Function

Experimental determination of the specific opacity function for the Ba+HI→BaI(v=0)+H reaction

1992 ◽  
Vol 96 (4) ◽  
pp. 2786-2798 ◽  
Author(s):  
Patrick H. Vaccaro ◽  
Athanassios A. Tsekouras ◽  
Daqing Zhao ◽  
Christine A. Leach ◽  
Richard N. Zare
Keyword(s):  
Experimental Determination ◽  
Opacity Function

scholarly journals OPACITY FUNCTION FOR ROTATIONALLY INELASTIC SCATTERING OF Ar+N2 SYSTEM IN IT'S LONG-RANGE POTENTIALS

1994 ◽  
Vol 43 (9) ◽  
pp. 1413
Author(s):  
REN TING-QI ◽  
LIU SHENG-DIAN ◽  
ZHANG QING-GANG ◽  
ZHANG YI-CI
Keyword(s):  
Inelastic Scattering ◽  
Long Range ◽  
Rotationally Inelastic Scattering ◽  
Opacity Function

scholarly journals On physical interpretations of the reference transit radius of gas-giant exoplanets

2019 ◽  
Vol 490 (3) ◽  
pp. 3378-3383 ◽  
Author(s):  
Kevin Heng
Keyword(s):  
Optical Depth ◽  
First Principles ◽  
Spherical Surface ◽  
Continuous Functions ◽  
Transmission Spectra ◽  
Small Particles ◽  
Gas Giant ◽  
Reference Pressure ◽  
Opacity Function

ABSTRACT Two theoretical quandaries involving transmission spectra of gas-giant exoplanets are elucidated. When computing the transit radius as a function of wavelength, one needs to specify a reference transit radius corresponding to a reference pressure. Mathematically, the reference transit radius is a constant of integration that originates from evaluating an integral for the transit depth. Physically, its interpretation has been debated in the literature. Jordán & Espinoza suggested that the optical depth is discontinuous across, and infinite below, the reference transit radius. Bétrémieux & Swain interpreted the spherical surface located at the reference transit radius to represent the boundary associated with an opaque cloud deck. It is demonstrated that continuous functions for the optical depth may be found. The optical depth below and at the reference transit radius need not take on special or divergent values. In the limit of a spatially uniform grey cloud with constant opacity, the transit chord with optical depth of the order of unity mimics the presence of a ‘cloud top’. While the surface located at the reference pressure may mimic the presence of grey clouds, it is more natural to include the effects of these clouds as part of the opacity function because the cloud opacity may be computed from first principles. It is unclear how this mimicry extends to non-grey clouds comprising small particles.

scholarly journals APPLICABILITY OF A REPRESENTATION FOR THE MARTIN'S REAL-PART FORMULA IN MODEL-INDEPENDENT ANALYSES

2011 ◽  
Vol 26 (19) ◽  
pp. 3219-3247 ◽  
Author(s):  
D. A. FAGUNDES ◽  
M. J. MENON
Keyword(s):  
High Energy ◽  
Cross Section Data ◽  
Proton Proton ◽  
Section Data ◽  
Part Formula ◽  
High Energies ◽  
Peripheral Effect ◽  
Model Independent ◽  
Opacity Function ◽  
The Impact

Using a novel representation for the Martin's real-part formula without the full scaling property, an almost model-independent description of the proton–proton differential cross-section data at high energies (19.4 GeV–62.5 GeV) is obtained. In the impact parameter and eikonal frameworks, the extracted inelastic overlap function presents a peripheral effect (tail) above 2 fm and the extracted opacity function is characterized by a zero (change of sign) in the momentum transfer space, confirming results from previous model-independent analyses. Analytical parametrization for these empirical results are introduced and discussed. The importance of investigations on the inverse problems in high-energy elastic hadron scattering is stressed and the relevance of the proposed representation is commented. A short critical review on the use of Martin's formula is also presented.

Orientational opacity function for CH3I+Rb reactive backscattering: The steric cone of nonreaction

1985 ◽  
Vol 83 (9) ◽  
pp. 4463-4469 ◽  
Author(s):  
Seung E. Choi ◽  
Richard B. Bernstein
Keyword(s):  
Opacity Function

Recoil opacity function and angular momentum transfer across a deep well for heavy heavy-light chemical reactions

1995 ◽  
Vol 241 (4) ◽  
pp. 408-414 ◽  
Author(s):  
Jose M. Alvarifio ◽  
Luis Cuadrado ◽  
Maria L. Hernández ◽  
Antonio Laganà
Keyword(s):  
Angular Momentum ◽  
Momentum Transfer ◽  
Chemical Reactions ◽  
Angular Momentum Transfer ◽  
Deep Well ◽  
Opacity Function
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