Impulse formalism for atom-molecule collisions: Inadequacy of the peaking approximation

Journal Article · Tue Aug 01 00:00:00 EDT 1989 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.40.1692· OSTI ID:5874930

Sharma, R D; Bakshi, P M; Sindoni, J M

Expressions for differential and total cross sections for atom-diatomscattering are derived using the impulse formalism without any approximations.Results for the rotational-vibrational scattering are obtained without usingthe peaking approximation (PA). For the specific case of a hard-core potential,it is shown that, except for elastic scattering, PA results are substantiallydifferent from the true impulse results.

• Research Organization: Optical/Infrared Technology Division, Geophysics Laboratory, Hanscom Air Force Base, Massachusetts 01731(US); Physics Department, Boston College, Chestnut Hill, Massachusetts 02167; Yap Analytics Inc., 594 Marret Road, Lexington, Massachusetts 02173
• OSTI ID: 5874930
• Journal Information: Phys. Rev. A; (United States), Vol. 40:3
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOM-MOLECULE COLLISIONS
IMPULSE APPROXIMATION
DIFFERENTIAL CROSS SECTIONS
ROTATIONAL STATES
SCATTERING AMPLITUDES
TOTAL CROSS SECTIONS
VIBRATIONAL STATES
AMPLITUDES
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
ENERGY LEVELS
EXCITED STATES
MOLECULE COLLISIONS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena