Observation of a shape resonance in the athinsp[sup 3][summation][sub u][sup +] state of [sup 7]Li[sub 2]

Journal Article · Wed Sep 01 04:00:00 EDT 1999 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.60.2063· OSTI ID:6469246

Cote, R; Dalgarno, A ^[1]; Lyyra, A M ^[2]; Li, L ^[3]

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1. Institute for Theoretical Atomic and Molecular Physics (ITAMP), Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States)
2. Department of Physics, Temple University, Philadelphia, Pennsylvania 19122 (United States)
3. Department of Modern Applied Physics, Tsinghua University, Beijing 100084 (China)

Using the most accurate potential curves available for the athinsp[sup 3][summation][sub u][sup +] and Xthinsp[sup 1][summation][sub g][sup +] states of lithium molecules, we compute the positions of shape resonances. We also calculate the deexcitation probability from a bound level v[sup [prime]] with rotational number N[sup [prime]] to the continuum of the lower state, and conclude that a shape resonance should be measurable for the transition 2thinsp[sup 3][product][sub g][r arrow]athinsp[sup 3][summation][sub u][sup +]. Such a shape resonance has been identified from the spectra of the transition from the v[sup [prime]]=2,N[sup [prime]]=4 level of 2thinsp[sup 3][product][sub g] into the N[sup [double prime]]=4 continuum of athinsp[sup 3][summation][sub u][sup +]. Its position is in good agreement with the theoretical prediction. [copyright] [ital 1999] [ital The American Physical Society]

• OSTI ID: 6469246
• Journal Information: Physical Review A, Journal Name: Physical Review A Vol. 60:3; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664100 -- Theory of Electronic Structure of Atoms & Molecules-- (1992-)
664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METAL COMPOUNDS
ALKALI METALS
BOUND STATE
COLLECTIVE MODEL
DE-EXCITATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
FLUORESCENCE
LITHIUM
LITHIUM COMPOUNDS
LUMINESCENCE
MATHEMATICAL MODELS
METALS
NUCLEAR MODELS
POTENTIAL ENERGY
RESONANCE
ROTATION-VIBRATION MODEL
VIBRATIONAL STATES