Two-center interference in fast proton-H{sub 2}-electron transfer and excitation processes

Journal Article · Tue Nov 15 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.72.0· OSTI ID:20786423

Stoechkel, K; Eidem, O; Cederquist, H; Zettergren, H; Reinhed, P; Schuch, R; Schmidt, H T ^[1]; Cocke, C L ^[2]; Levin, S B ^[1]; Ostrovsky, V N ^[3]; Kaelberg, A; Simonsson, A ^[4]; Jensen, J ^[5]

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1. Department of Physics, Stockholm University, 10691 Stockholm (Sweden)
2. Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States)
3. Fock Institute of Physics, St.Petersburg State University, 198504 St.Petersburg (Russian Federation)
4. Manne Siegbahn Laboratory, S-104 05, Stockholm (Sweden)
5. Angstroem Laboratory, Uppsala University, S-75121 Uppsala (Sweden)

We present experimental evidence for a strong dependence on the angle between the molecular axis of H{sub 2} and the direction of the incoming projectile (p) in the cross section for transfer excitation in fast p-H{sub 2} collisions. For collision energies of 1.0 and 1.3 MeV we find good agreement between the observed data and an analytical expression based on a two-atomic-center description using Brinkman-Kramers amplitudes. This clearly shows that the observed angular dependence is a result of quantum mechanical interference and not a trivial geometrical effect.

• OSTI ID: 20786423
• Journal Information: Physical Review. A, Vol. 72, Issue 5; Other Information: DOI: 10.1103/PhysRevA.72.050703; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
CATIONS
CHARGE EXCHANGE
ELECTRON TRANSFER
EXCITATION
HYDROGEN
HYDROGEN IONS
INTERFERENCE
ION-MOLECULE COLLISIONS
MEV RANGE
MOLECULES
PROTONS
QUANTUM MECHANICS