Formation of protons from dissociative ionization of methane induced by 54 eV electrons

S. Xu; X. Ma; X. Ren; A. Senftleben; T. Pflüger; A. Dorn; J. Ullrich

doi:10.1103/PhysRevA.83.052702

Formation of protons from dissociative ionization of methane induced by 54 eV electrons

S. Xu
, X. Ma
, X. Ren
, A. Senftleben
, T. Pflüger
, A. Dorn
, J. Ullrich

CAS - Institute of Modern Physics
Max Planck Institute for Nuclear Physics
University of Chinese Academy of Sciences

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

21 Scopus citations

Abstract

The production mechanisms of protons in dissociation of methane by 54 eV electron impact is investigated using the reaction microscope. By measuring all three charged particles in the final state in triple coincidence, the energy deposited in the target is determined. It is found that the (2a ₁)^-1(npt₂)1, (2a₁)^-1, (1t₂)^-2(3a₁)1, and (2a₁) ^-2(3a₁)1 states of the intermediate CH₄ ⁺ make the major contributions to the formation of protons at this incident energy. The decay of each state results in a different kinetic energy distribution of protons. Possible decay mechanisms of these states are analyzed.

Original language	English
Article number	052702
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	83
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.83.052702
State	Published - 12 May 2011
Externally published	Yes

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10.1103/PhysRevA.83.052702

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title = "Formation of protons from dissociative ionization of methane induced by 54 eV electrons",

abstract = "The production mechanisms of protons in dissociation of methane by 54 eV electron impact is investigated using the reaction microscope. By measuring all three charged particles in the final state in triple coincidence, the energy deposited in the target is determined. It is found that the (2a 1)-1(npt2)1, (2a1)-1, (1t2)-2(3a1)1, and (2a1) -2(3a1)1 states of the intermediate CH4 + make the major contributions to the formation of protons at this incident energy. The decay of each state results in a different kinetic energy distribution of protons. Possible decay mechanisms of these states are analyzed.",

author = "S. Xu and X. Ma and X. Ren and A. Senftleben and T. Pfl{\"u}ger and A. Dorn and J. Ullrich",

year = "2011",

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doi = "10.1103/PhysRevA.83.052702",

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T1 - Formation of protons from dissociative ionization of methane induced by 54 eV electrons

AU - Xu, S.

AU - Ma, X.

AU - Ren, X.

AU - Senftleben, A.

AU - Pflüger, T.

AU - Dorn, A.

AU - Ullrich, J.

PY - 2011/5/12

Y1 - 2011/5/12

N2 - The production mechanisms of protons in dissociation of methane by 54 eV electron impact is investigated using the reaction microscope. By measuring all three charged particles in the final state in triple coincidence, the energy deposited in the target is determined. It is found that the (2a 1)-1(npt2)1, (2a1)-1, (1t2)-2(3a1)1, and (2a1) -2(3a1)1 states of the intermediate CH4 + make the major contributions to the formation of protons at this incident energy. The decay of each state results in a different kinetic energy distribution of protons. Possible decay mechanisms of these states are analyzed.

AB - The production mechanisms of protons in dissociation of methane by 54 eV electron impact is investigated using the reaction microscope. By measuring all three charged particles in the final state in triple coincidence, the energy deposited in the target is determined. It is found that the (2a 1)-1(npt2)1, (2a1)-1, (1t2)-2(3a1)1, and (2a1) -2(3a1)1 states of the intermediate CH4 + make the major contributions to the formation of protons at this incident energy. The decay of each state results in a different kinetic energy distribution of protons. Possible decay mechanisms of these states are analyzed.

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DO - 10.1103/PhysRevA.83.052702

M3 - 文章

AN - SCOPUS:79961091788

SN - 1050-2947

VL - 83

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 5

M1 - 052702

ER -

Formation of protons from dissociative ionization of methane induced by 54 eV electrons

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