Complete determination of excitation amplitudes and phases for the 31D state of helium

A. G. Mikosza; J. F. Williams; J. B. Wang

Complete determination of excitation amplitudes and phases for the 3¹D state of helium

A. G. Mikosza^*, J. F. Williams, J. B. Wang

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

Observations of triple coincidence polarization correlations of the sequential cascading photons (667.8 nm 3¹D → 2¹P and 58.4 nm 2¹P → ¹S transitions) and the scattered electrons from electron impact excitation of the 3¹D state of helium have determined the amplitudes and relative phases of the magnetic substates. The ambiguity of electron-photon coincidence measurements, which determine only the cosine of the sum of the phases between the m = ±2 amplitudes, is resolved. The measured amplitudes and phases at 60 eV incident energy and 40° scattering angle confirm the convergent close coupling values.

Original language	English
Pages (from-to)	3375-3378
Number of pages	4
Journal	Physical Review Letters
Volume	79
Issue number	18
Publication status	Published - 3 Nov 1997
Externally published	Yes

Cite this

@article{69de02af54624ea1bdfcc57722d1d98b,

title = "Complete determination of excitation amplitudes and phases for the 31D state of helium",

abstract = "Observations of triple coincidence polarization correlations of the sequential cascading photons (667.8 nm 31D → 21P and 58.4 nm 21P → 1S transitions) and the scattered electrons from electron impact excitation of the 31D state of helium have determined the amplitudes and relative phases of the magnetic substates. The ambiguity of electron-photon coincidence measurements, which determine only the cosine of the sum of the phases between the m = ±2 amplitudes, is resolved. The measured amplitudes and phases at 60 eV incident energy and 40° scattering angle confirm the convergent close coupling values.",

author = "Mikosza, \{A. G.\} and Williams, \{J. F.\} and Wang, \{J. B.\}",

year = "1997",

month = nov,

day = "3",

language = "English",

volume = "79",

pages = "3375--3378",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "18",

}

TY - JOUR

T1 - Complete determination of excitation amplitudes and phases for the 31D state of helium

AU - Mikosza, A. G.

AU - Williams, J. F.

AU - Wang, J. B.

PY - 1997/11/3

Y1 - 1997/11/3

N2 - Observations of triple coincidence polarization correlations of the sequential cascading photons (667.8 nm 31D → 21P and 58.4 nm 21P → 1S transitions) and the scattered electrons from electron impact excitation of the 31D state of helium have determined the amplitudes and relative phases of the magnetic substates. The ambiguity of electron-photon coincidence measurements, which determine only the cosine of the sum of the phases between the m = ±2 amplitudes, is resolved. The measured amplitudes and phases at 60 eV incident energy and 40° scattering angle confirm the convergent close coupling values.

AB - Observations of triple coincidence polarization correlations of the sequential cascading photons (667.8 nm 31D → 21P and 58.4 nm 21P → 1S transitions) and the scattered electrons from electron impact excitation of the 31D state of helium have determined the amplitudes and relative phases of the magnetic substates. The ambiguity of electron-photon coincidence measurements, which determine only the cosine of the sum of the phases between the m = ±2 amplitudes, is resolved. The measured amplitudes and phases at 60 eV incident energy and 40° scattering angle confirm the convergent close coupling values.

UR - https://www.scopus.com/pages/publications/0001569708

M3 - Article

AN - SCOPUS:0001569708

SN - 0031-9007

VL - 79

SP - 3375

EP - 3378

JO - Physical Review Letters

JF - Physical Review Letters

IS - 18

ER -

Complete determination of excitation amplitudes and phases for the 3¹D state of helium

Abstract

Other files and links

Fingerprint

Cite this