Intra-atomic electron-electron scattering in p-he collisions (thomas process) investigated by cold target recoil ion momentum spectroscopy

V. Mergel; R. Dörner; M. Achler; K. H. Khayyat; S. Lencinas; J. Euler; O. Jagutzki; S. Nüttgens; M. Unverzagt; L. Spielberger; W. Wu; R. Ali; J. Ullrich; H. Cederquist; A. Salin; C. J. Wood; R. E. Olson; D. Belkic; C. L. Cocke; H. Schmidt-Böcking

doi:10.1103/PhysRevLett.79.387

Intra-atomic electron-electron scattering in p-he collisions (thomas process) investigated by cold target recoil ion momentum spectroscopy

V. Mergel, R. Dörner, M. Achler, K. H. Khayyat, S. Lencinas, J. Euler, O. Jagutzki, S. Nüttgens, M. Unverzagt, L. Spielberger, W. Wu, R. Ali, J. Ullrich, H. Cederquist, A. Salin, C. J. Wood, R. E. Olson, D. Belkic, C. L. Cocke, H. Schmidt-Böcking

Energy Storage & Conversion

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Abstract

We have performed a kinematically complete experiment for the transfer ionization reaction 0.15-1.4 MeV p+He-->H⁰+He²⁺+e^- by measuring the three-dimensional momentum vector of the He²⁺ ion in coincidence with the scattering angle and the plane of the H⁰. In the measured fourfold differential cross section we can clearly distinguish between the independent two-step process of capture plus ionization and the correlated e- e Thomas scattering. We find a v^-7.4+/-1P scaling for the total cross section of the e- e Thomas process.

Original language	English
Pages (from-to)	387-390
Number of pages	4
Journal	Physical Review Letters
Volume	79
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.79.387
State	Published - Jan 1 1997

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Mergel, V., Dörner, R., Achler, M., Khayyat, K. H., Lencinas, S., Euler, J., Jagutzki, O., Nüttgens, S., Unverzagt, M., Spielberger, L., Wu, W., Ali, R., Ullrich, J., Cederquist, H., Salin, A., Wood, C. J., Olson, R. E., Belkic, D., Cocke, C. L., & Schmidt-Böcking, H. (1997). Intra-atomic electron-electron scattering in p-he collisions (thomas process) investigated by cold target recoil ion momentum spectroscopy. Physical Review Letters, 79(3), 387-390. https://doi.org/10.1103/PhysRevLett.79.387

@article{3197d37aba4c4c538b018577ad459532,

title = "Intra-atomic electron-electron scattering in p-he collisions (thomas process) investigated by cold target recoil ion momentum spectroscopy",

abstract = "We have performed a kinematically complete experiment for the transfer ionization reaction 0.15-1.4 MeV p+He-->H0+He2++e- by measuring the three-dimensional momentum vector of the He2+ ion in coincidence with the scattering angle and the plane of the H0. In the measured fourfold differential cross section we can clearly distinguish between the independent two-step process of capture plus ionization and the correlated e- e Thomas scattering. We find a v-7.4+/-1P scaling for the total cross section of the e- e Thomas process.",

author = "V. Mergel and R. D{\"o}rner and M. Achler and Khayyat, {K. H.} and S. Lencinas and J. Euler and O. Jagutzki and S. N{\"u}ttgens and M. Unverzagt and L. Spielberger and W. Wu and R. Ali and J. Ullrich and H. Cederquist and A. Salin and Wood, {C. J.} and Olson, {R. E.} and D. Belkic and Cocke, {C. L.} and H. Schmidt-B{\"o}cking",

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doi = "10.1103/PhysRevLett.79.387",

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Mergel, V, Dörner, R, Achler, M, Khayyat, KH, Lencinas, S, Euler, J, Jagutzki, O, Nüttgens, S, Unverzagt, M, Spielberger, L, Wu, W, Ali, R, Ullrich, J, Cederquist, H, Salin, A, Wood, CJ, Olson, RE, Belkic, D, Cocke, CL & Schmidt-Böcking, H 1997, 'Intra-atomic electron-electron scattering in p-he collisions (thomas process) investigated by cold target recoil ion momentum spectroscopy', Physical Review Letters, vol. 79, no. 3, pp. 387-390. https://doi.org/10.1103/PhysRevLett.79.387

TY - JOUR

T1 - Intra-atomic electron-electron scattering in p-he collisions (thomas process) investigated by cold target recoil ion momentum spectroscopy

AU - Mergel, V.

AU - Dörner, R.

AU - Achler, M.

AU - Khayyat, K. H.

AU - Lencinas, S.

AU - Euler, J.

AU - Jagutzki, O.

AU - Nüttgens, S.

AU - Unverzagt, M.

AU - Spielberger, L.

AU - Wu, W.

AU - Ali, R.

AU - Ullrich, J.

AU - Cederquist, H.

AU - Salin, A.

AU - Wood, C. J.

AU - Olson, R. E.

AU - Belkic, D.

AU - Cocke, C. L.

AU - Schmidt-Böcking, H.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - We have performed a kinematically complete experiment for the transfer ionization reaction 0.15-1.4 MeV p+He-->H0+He2++e- by measuring the three-dimensional momentum vector of the He2+ ion in coincidence with the scattering angle and the plane of the H0. In the measured fourfold differential cross section we can clearly distinguish between the independent two-step process of capture plus ionization and the correlated e- e Thomas scattering. We find a v-7.4+/-1P scaling for the total cross section of the e- e Thomas process.

AB - We have performed a kinematically complete experiment for the transfer ionization reaction 0.15-1.4 MeV p+He-->H0+He2++e- by measuring the three-dimensional momentum vector of the He2+ ion in coincidence with the scattering angle and the plane of the H0. In the measured fourfold differential cross section we can clearly distinguish between the independent two-step process of capture plus ionization and the correlated e- e Thomas scattering. We find a v-7.4+/-1P scaling for the total cross section of the e- e Thomas process.

UR - http://www.scopus.com/inward/record.url?scp=4243348871&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.79.387

DO - 10.1103/PhysRevLett.79.387

M3 - Article

AN - SCOPUS:4243348871

SN - 0031-9007

VL - 79

SP - 387

EP - 390

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

ER -

Intra-atomic electron-electron scattering in p-he collisions (thomas process) investigated by cold target recoil ion momentum spectroscopy

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