State-to-state quantum reactive scattering for four-atom chemical reactions: Differential cross section for the H+H2O→H2+OH abstraction reaction

2006 ◽  
Vol 125 (13) ◽  
pp. 133102 ◽  
Author(s):  
Dong H. Zhang
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Chemical Reactions ◽  
Differential Cross ◽  
Reactive Scattering ◽  
Abstraction Reaction ◽  
Quantum Reactive Scattering

scholarly journals Reactive Scattering of Oxygen Atoms With Bromine Molecules

1988 ◽  
Vol 9 (4-6) ◽  
pp. 265-276 ◽  
Author(s):  
N. C. Firth ◽  
N. W. Keane ◽  
D. J. Smith ◽  
R. Grice
Keyword(s):  
Angular Distribution ◽  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Rotational Motion ◽  
Correlation Time ◽  
Cross Correlation ◽  
Translational Energy ◽  
Reactive Scattering ◽  
Centre Of Mass

Reactive scattering of O atoms with Br2 molecules has been studied at an initial translational energy E~35 kJ mol−1 using cross-correlation time-of-flight analysis with resolution improved over previous measurements. The centre-of-mass differential cross section peaks in the forward and backward directions with a higher product translational energy for backward Scattering. The angular distribution traced at the peak of the product velocity distribution peaks more sharply in the forward than the backward direction but the angular distribution of product flux shows a distribution which is more nearly symmetrical about θ = 90°. The observed scattering is attributed to a triplet OBrBr complex intermediate with a lifetime which is shorter than the period of overall rotation of the axis of the heavy BrBr diatomic but which is long compared with the period of vibrational and rotational motion of the light O atom.

A STATE-TO-STATE QUANTUM DYNAMICAL STUDY OF THE H + HBr REACTION

2008 ◽  
Vol 07 (04) ◽  
pp. 777-791 ◽  
Author(s):  
BINA FU ◽  
YONG ZHOU ◽  
DONG H. ZHANG
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
Collision Energy ◽  
Differential Cross Sections ◽  
Exchange Processes ◽  
Abstraction Reaction ◽  
Constraint Model ◽  
Rovibrational State

The time-dependent wave packet method was used to calculate the state-to-state differential cross sections for abstraction and exchange processes in the title reaction on the Kurosaki–Takayanagi potential energy surface [Kurosaki Y, Takayanagi T, J Chem Phys119:7838, 2003], with the reactant HBr initially in the ground rovibrational state. It is found that the trend in the product distributions is similar for abstraction and exchange processes, but the differential cross sections are very different. For the exchange reaction, the product is mainly scattered in the backward hemisphere for collision energy up to 2.0 eV, although forward scattering gradually shows up in high collision energies. While for abstraction reaction, the differential cross section changes substantially with the collision energy, moving from predominantly backward peaked at low collision energy to predominantly forward peaked at high collision energy. The rovibrational state resolved differential cross section at collision energy of 2.0 eV exhibits two peaks for the abstraction reaction, one is around the angle of 50°, and the other at 0°. It is found that the peaks around 50°, are below the corresponding maximum j' lines provided by the kinematic constraint model, while the forward-scattered peaks straddle both sides of the kinematic limit, and are likely contributed from both the direct and the migratory reaction mechanisms as proposed by Zare and coworkers.

Energy unresolved differential cross section for electron scattering by H2

1982 ◽  
Vol 77 (3) ◽  
pp. 1323-1334 ◽  
Author(s):  
Wl/odzimierz Kol/os ◽  
Hendrik J. Monkhorst ◽  
Krzysztof Szalewicz
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Electron Scattering ◽  
Differential Cross

NOTE ON THE MEASUREMENT OF y-DEPENDENCE IN NEUTRINO-ELECTRON SCATTERING: A SENSITIVE TEST OF THE STANDARD MODEL

1993 ◽  
Vol 02 (04) ◽  
pp. 915-921 ◽  
Author(s):  
C. RANGACHARYULU ◽  
A. RICHTER
Keyword(s):  
Standard Model ◽  
Differential Cross Section ◽  
Cross Section ◽  
Electron Scattering ◽  
Differential Cross ◽  
Sensitive Test ◽  
Testing Ground ◽  
The Standard Model ◽  
Sensitive Testing

It is pointed out that the y-dependence of the differential cross-section for various types of neutrinos on the electron promises to be a sensitive testing ground of the electroweak Standard Model at KAON in Vancouver. Estimates of the flux requirements are given and the feasibility of such experiments is discussed.

Triply differential cross section for ionization in ion-atom collisions

1996 ◽  
Vol 54 (1) ◽  
pp. 439-443 ◽  
Author(s):  
G. Gasaneo ◽  
W. Cravero ◽  
M. D. Sánchez ◽  
C. R. Garibotti
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross
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