Phys. Rev. Lett. 79, 2419–2422 (1997)

Photoexcitation of Hollow Lithium with Completely Empty K and L Shells

Abstract

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Y. Azuma¹, F. Koike², J. W. Cooper³, T. Nagata⁴, G. Kutluk¹, E. Shigemasa¹, R. Wehlitz⁵, and I. A. Sellin⁵
¹Photon Factory, IMSS, KEK, Tsukuba, Ibaraki 305, Japan
²Kitasato University, Sagamihara, Kanagawa 228, Japan
³IPST, University of Maryland, College Park, Maryland 20742
⁴Meisei University, Hodokubo, Hino, Tokyo 191, Japan
⁵University of Tennessee, Knoxville, Tennessee 37996

Received 9 June 1997; published in the issue dated 29 September 1997

A weak lithium photoexcitation resonance with completely empty K and L shells ( KL-hollow lithium) has been discovered using synchrotron radiation and photoion spectroscopy. This Li (3,3,3) resonance was observed in the doubly charged Li⁺⁺ photoion yield spectrum at 175.25 eV and demonstrates electron correlation involving all three electrons in the excitation process. Resonance parameters obtained from the data show excellent agreement with the multiconfiguration Dirac-Fock calculation which assigns 3s²3p as the dominant configuration.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.79.2419

DOI:

10.1103/PhysRevLett.79.2419

PACS:

32.80.Dz

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Phys. Rev. Lett. 79, 2419–2422 (1997)

Photoexcitation of Hollow Lithium with Completely Empty K and L Shells