title: The maximum momentum transfer in proton-hydrogen collisions.
abstract: The upper limit of momentum transfer by a proton to K-shell electrons is calculated in a restricted three-body classical model.  The model shows that the infinite upper limit used in practice, is generally good except for low energy protons passing through an extremely rarefied gas.
authors.affiliation: Department of Physics, Old Dominion University, Norfolk, VA 23508, USA.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Xu
authors.forename: G S
authors.initials: GS
authors.lastname: Khandelwal
authors.forename: J W
authors.initials: JW
authors.lastname: Wilson
mesh_terms: D004583:Electrons; D004735:Energy Transfer; D006859:Hydrogen; D008962:Models, Theoretical; D009686:Nuclear Physics; D011522:Protons
chemical_list: D011522:Protons; D006859:Hydrogen