Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization

S. Grundmann; F. Trinter; A. W. Bray; S. Eckart; J. Rist; G. Kastirke; D. Metz; S. Klumpp; J. Viefhaus; L. Ph H. Schmidt; J. B. Williams; R. Dörner; T. Jahnke; M. S. Schöffler; A. S. Kheifets

doi:10.1103/PhysRevLett.121.173003

Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization

S. Grundmann
, F. Trinter
, A. W. Bray
, S. Eckart
, J. Rist
, G. Kastirke
, D. Metz
, S. Klumpp
, J. Viefhaus
, L. Ph H. Schmidt
, J. B. Williams
, R. Dörner
, T. Jahnke
, M. S. Schöffler
, A. S. Kheifets

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

21 Citations (Scopus)

Abstract

We report on a kinematically complete measurement of double ionization of helium by a single 1100 eV circularly polarized photon. By exploiting dipole selection rules in the two-electron continuum state, we observed the angular emission pattern of electrons originating from a pure quadrupole transition. Our fully differential experimental data and companion ab initio nonperturbative theory show the separation of dipole and quadrupole contributions to photo-double-ionization and provide new insight into the nature of the quasifree mechanism.

Original language	English
Article number	173003
Journal	Physical Review Letters
Volume	121
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.121.173003
Publication status	Published - 23 Oct 2018

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10.1103/PhysRevLett.121.173003

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Grundmann, S., Trinter, F., Bray, A. W., Eckart, S., Rist, J., Kastirke, G., Metz, D., Klumpp, S., Viefhaus, J., Schmidt, L. P. H., Williams, J. B., Dörner, R., Jahnke, T., Schöffler, M. S., & Kheifets, A. S. (2018). Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization. Physical Review Letters, 121(17), Article 173003. https://doi.org/10.1103/PhysRevLett.121.173003

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title = "Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization",

abstract = "We report on a kinematically complete measurement of double ionization of helium by a single 1100 eV circularly polarized photon. By exploiting dipole selection rules in the two-electron continuum state, we observed the angular emission pattern of electrons originating from a pure quadrupole transition. Our fully differential experimental data and companion ab initio nonperturbative theory show the separation of dipole and quadrupole contributions to photo-double-ionization and provide new insight into the nature of the quasifree mechanism.",

author = "S. Grundmann and F. Trinter and Bray, \{A. W.\} and S. Eckart and J. Rist and G. Kastirke and D. Metz and S. Klumpp and J. Viefhaus and Schmidt, \{L. Ph H.\} and Williams, \{J. B.\} and R. D{\"o}rner and T. Jahnke and Sch{\"o}ffler, \{M. S.\} and Kheifets, \{A. S.\}",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = oct,

day = "23",

doi = "10.1103/PhysRevLett.121.173003",

language = "English",

volume = "121",

journal = "Physical Review Letters",

issn = "0031-9007",

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}

Grundmann, S, Trinter, F, Bray, AW, Eckart, S, Rist, J, Kastirke, G, Metz, D, Klumpp, S, Viefhaus, J, Schmidt, LPH, Williams, JB, Dörner, R, Jahnke, T, Schöffler, MS & Kheifets, AS 2018, 'Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization', Physical Review Letters, vol. 121, no. 17, 173003. https://doi.org/10.1103/PhysRevLett.121.173003

TY - JOUR

T1 - Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization

AU - Grundmann, S.

AU - Trinter, F.

AU - Bray, A. W.

AU - Eckart, S.

AU - Rist, J.

AU - Kastirke, G.

AU - Metz, D.

AU - Klumpp, S.

AU - Viefhaus, J.

AU - Schmidt, L. Ph H.

AU - Williams, J. B.

AU - Dörner, R.

AU - Jahnke, T.

AU - Schöffler, M. S.

AU - Kheifets, A. S.

PY - 2018/10/23

Y1 - 2018/10/23

N2 - We report on a kinematically complete measurement of double ionization of helium by a single 1100 eV circularly polarized photon. By exploiting dipole selection rules in the two-electron continuum state, we observed the angular emission pattern of electrons originating from a pure quadrupole transition. Our fully differential experimental data and companion ab initio nonperturbative theory show the separation of dipole and quadrupole contributions to photo-double-ionization and provide new insight into the nature of the quasifree mechanism.

AB - We report on a kinematically complete measurement of double ionization of helium by a single 1100 eV circularly polarized photon. By exploiting dipole selection rules in the two-electron continuum state, we observed the angular emission pattern of electrons originating from a pure quadrupole transition. Our fully differential experimental data and companion ab initio nonperturbative theory show the separation of dipole and quadrupole contributions to photo-double-ionization and provide new insight into the nature of the quasifree mechanism.

UR - https://www.scopus.com/pages/publications/85055697042

U2 - 10.1103/PhysRevLett.121.173003

DO - 10.1103/PhysRevLett.121.173003

M3 - Article

SN - 0031-9007

VL - 121

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

M1 - 173003

ER -

Separating Dipole and Quadrupole Contributions to Single-Photon Double Ionization

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