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Title: Calculation of electron impact total, ionization, and nonbreakup cross sections from the 3[ital S] and 3[ital P] states of sodium

Journal Article · · Physical Review Letters; (United States)
 [1]
  1. Electronic Structure of Materials Centre, The Flinders University of South Australia, G.P.O. Box 2100, Adelaide 5001 (Australia)

We present convergent close-coupling calculations of the total, ionization, and nonbreakup cross sections for electron impact of Na 3[ital S] and 3[ital P] states. We show that the total and nonbreakup cross sections converge rapidly with increasing target orbital angular momentum [ital l][sub max] used in the close-coupling expansion. The total ionization cross section is less rapidly convergent, and typically has the largest partial contribution from ionization of the [ital l]=[ital l][sub max] states. The total cross sections and total ionization spin asymmetries are in excellent quantitative agreement with experiment. However, the total ionization cross section from the 3[ital S] state is approximately a factor of 2 lower.

OSTI ID:
7072247
Journal Information:
Physical Review Letters; (United States), Vol. 73:8; ISSN 0031-9007
Country of Publication:
United States
Language:
English