Fully differential study of interference effects in the ionization of H2 by proton impact

S. Sharma; T. P. Arthanayaka; A. Hasan; B. R. Lamichhane; J. Remolina; A. Smith; M. Schulz

doi:10.1103/PhysRevA.90.052710

Fully differential study of interference effects in the ionization of H2 by proton impact

S. Sharma, T. P. Arthanayaka, A. Hasan, B. R. Lamichhane, J. Remolina, A. Smith, M. Schulz

Department of Physics

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

We have measured fully differential cross sections for ionization of H2 by 75-keV proton impact. The coherence length of the projectile beam was varied by changing the distance between a collimating slit and the target. By comparing the cross sections measured for large and small coherence lengths pronounced interference effects could be identified in the data. A surprising result is that the phase angle in the interference term is primarily determined by the momentum transfer and only to a lesser extent by the recoil-ion momentum.

Original language	English
Article number	052710
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	90
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.90.052710
Publication status	Published - Nov 12 2014

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.90.052710

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abstract = "We have measured fully differential cross sections for ionization of H2 by 75-keV proton impact. The coherence length of the projectile beam was varied by changing the distance between a collimating slit and the target. By comparing the cross sections measured for large and small coherence lengths pronounced interference effects could be identified in the data. A surprising result is that the phase angle in the interference term is primarily determined by the momentum transfer and only to a lesser extent by the recoil-ion momentum.",

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AU - Sharma, S.

AU - Arthanayaka, T. P.

AU - Hasan, A.

AU - Lamichhane, B. R.

AU - Remolina, J.

AU - Smith, A.

AU - Schulz, M.

PY - 2014/11/12

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AB - We have measured fully differential cross sections for ionization of H2 by 75-keV proton impact. The coherence length of the projectile beam was varied by changing the distance between a collimating slit and the target. By comparing the cross sections measured for large and small coherence lengths pronounced interference effects could be identified in the data. A surprising result is that the phase angle in the interference term is primarily determined by the momentum transfer and only to a lesser extent by the recoil-ion momentum.

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Fully differential study of interference effects in the ionization of H2 by proton impact

Abstract

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