Spin dependence in core-valence double photoionization of neon

Takeshi Odagiri; Yuma Sugawara; Tatsuo Kaneyasu; Jun Ichi Adachi; Hirokazu Tanaka; Isao H. Suzuki; Sakura Suzuki; Yasumasa Hikosaka

doi:10.1103/PhysRevA.111.L020801

Spin dependence in core-valence double photoionization of neon

Takeshi Odagiri^*, Yuma Sugawara, Tatsuo Kaneyasu, Jun Ichi Adachi, Hirokazu Tanaka, Isao H. Suzuki, Sakura Suzuki, Yasumasa Hikosaka

^*Corresponding author for this work

Faculty of Liberal Arts and Sciences

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

Abstract

We have studied core-valence double photoionization (DPI) of Ne leading to the 1s-12s-1S1,3 and 1s-12p-1P1,3 states of Ne2+ over a range of photon energy extending up to approximately 200 eV above the thresholds using a multielectron coincidence technique. Each DPI process is distinctly identified in the energy correlation between two photoelectrons. The ratios of singlet-to-triplet cross sections exhibit variation with photon energy, indicating a spin dependence in the DPI dynamics. The state-resolved DPI probabilities have been investigated by an incoherent sum of the knock-out (KO) and shake-off (SO) contributions, revealing a significant disparity in the dynamics of the KO mechanism between the DPI into the P1 and P3 states.

Original language	English
Article number	L020801
Journal	Physical Review A
Volume	111
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.111.L020801
State	Published - 2025/02

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.111.L020801

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title = "Spin dependence in core-valence double photoionization of neon",

abstract = "We have studied core-valence double photoionization (DPI) of Ne leading to the 1s-12s-1S1,3 and 1s-12p-1P1,3 states of Ne2+ over a range of photon energy extending up to approximately 200 eV above the thresholds using a multielectron coincidence technique. Each DPI process is distinctly identified in the energy correlation between two photoelectrons. The ratios of singlet-to-triplet cross sections exhibit variation with photon energy, indicating a spin dependence in the DPI dynamics. The state-resolved DPI probabilities have been investigated by an incoherent sum of the knock-out (KO) and shake-off (SO) contributions, revealing a significant disparity in the dynamics of the KO mechanism between the DPI into the P1 and P3 states.",

author = "Takeshi Odagiri and Yuma Sugawara and Tatsuo Kaneyasu and Adachi, {Jun Ichi} and Hirokazu Tanaka and Suzuki, {Isao H.} and Sakura Suzuki and Yasumasa Hikosaka",

note = "Publisher Copyright: {\textcopyright} 2025 American Physical Society.",

year = "2025",

month = feb,

doi = "10.1103/PhysRevA.111.L020801",

language = "英語",

volume = "111",

journal = "Physical Review A",

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publisher = "American Physical Society",

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TY - JOUR

T1 - Spin dependence in core-valence double photoionization of neon

AU - Odagiri, Takeshi

AU - Sugawara, Yuma

AU - Kaneyasu, Tatsuo

AU - Adachi, Jun Ichi

AU - Tanaka, Hirokazu

AU - Suzuki, Isao H.

AU - Suzuki, Sakura

AU - Hikosaka, Yasumasa

PY - 2025/2

Y1 - 2025/2

N2 - We have studied core-valence double photoionization (DPI) of Ne leading to the 1s-12s-1S1,3 and 1s-12p-1P1,3 states of Ne2+ over a range of photon energy extending up to approximately 200 eV above the thresholds using a multielectron coincidence technique. Each DPI process is distinctly identified in the energy correlation between two photoelectrons. The ratios of singlet-to-triplet cross sections exhibit variation with photon energy, indicating a spin dependence in the DPI dynamics. The state-resolved DPI probabilities have been investigated by an incoherent sum of the knock-out (KO) and shake-off (SO) contributions, revealing a significant disparity in the dynamics of the KO mechanism between the DPI into the P1 and P3 states.

AB - We have studied core-valence double photoionization (DPI) of Ne leading to the 1s-12s-1S1,3 and 1s-12p-1P1,3 states of Ne2+ over a range of photon energy extending up to approximately 200 eV above the thresholds using a multielectron coincidence technique. Each DPI process is distinctly identified in the energy correlation between two photoelectrons. The ratios of singlet-to-triplet cross sections exhibit variation with photon energy, indicating a spin dependence in the DPI dynamics. The state-resolved DPI probabilities have been investigated by an incoherent sum of the knock-out (KO) and shake-off (SO) contributions, revealing a significant disparity in the dynamics of the KO mechanism between the DPI into the P1 and P3 states.

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U2 - 10.1103/PhysRevA.111.L020801

DO - 10.1103/PhysRevA.111.L020801

M3 - 学術論文

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SN - 2469-9926

VL - 111

JO - Physical Review A

JF - Physical Review A

IS - 2

M1 - L020801

ER -

Spin dependence in core-valence double photoionization of neon

Abstract

ASJC Scopus subject areas

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