We have measured double differential cross sections (DDCS) for proton fragment formation for fixed projectile energy losses as a function of projectile scattering angle in 75 keV p + H2 collisions. An oscillating pattern was observed in the angular dependence of the DDCS with a frequency about twice as large as what we found earlier for nondissociative ionization. Possible origins for this frequency doubling are discussed.
K. N. Egodapitiya et al., "Scattering-Angle Dependence of Doubly Differential Cross Sections for Fragmentation of H₂ by Proton Impact," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 83, no. 1, pp. 012709-1-012709-9, American Physical Society (APS), Jan 2011.
The definitive version is available at https://doi.org/10.1103/PhysRevA.83.012709
Keywords and Phrases
Angle dependence; Angular dependence; Double differential cross sections; Doubly differential cross sections; Frequency-doubling; Oscillating pattern; Projectile energy; Proton impact; Scattering angles, Energy dissipation; Projectiles; Protons; Scattering
International Standard Serial Number (ISSN)
Article - Journal
© 2011 American Physical Society (APS), All rights reserved.
01 Jan 2011