A study of the helium 31D → 21P → 11S cascade with algebraic computing

J. B. Wang; J. F. Williams

doi:10.1016/0010-4655(93)90044-D

A study of the helium 3¹D → 2¹P → 1¹S cascade with algebraic computing

J. B. Wang^*, J. F. Williams

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

Coincidence intensities of the cascade decay 3¹D → 2¹P → 1¹S of helium excited by electron impact are computed using the symbolic manipulation package Mathematica. The formulation requires the calculation of a few thousand Clebsch-Gordan coefficients and rotation matrices, which would be extremely tedious to carry out by hand. A scheme is presented as an illustrative example of a lengthy and cumbersome calculation handled by Mathematica with ease.

Original language	English
Pages (from-to)	275-282
Number of pages	8
Journal	Computer Physics Communications
Volume	75
Issue number	3
DOIs	https://doi.org/10.1016/0010-4655(93)90044-D
Publication status	Published - 1993
Externally published	Yes

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10.1016/0010-4655(93)90044-D

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title = "A study of the helium 31D → 21P → 11S cascade with algebraic computing",

abstract = "Coincidence intensities of the cascade decay 31D → 21P → 11S of helium excited by electron impact are computed using the symbolic manipulation package Mathematica. The formulation requires the calculation of a few thousand Clebsch-Gordan coefficients and rotation matrices, which would be extremely tedious to carry out by hand. A scheme is presented as an illustrative example of a lengthy and cumbersome calculation handled by Mathematica with ease.",

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AB - Coincidence intensities of the cascade decay 31D → 21P → 11S of helium excited by electron impact are computed using the symbolic manipulation package Mathematica. The formulation requires the calculation of a few thousand Clebsch-Gordan coefficients and rotation matrices, which would be extremely tedious to carry out by hand. A scheme is presented as an illustrative example of a lengthy and cumbersome calculation handled by Mathematica with ease.

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DO - 10.1016/0010-4655(93)90044-D

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JO - Computer Physics Communications

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A study of the helium 3¹D → 2¹P → 1¹S cascade with algebraic computing

Abstract

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