Expectation values of the e{sup +}Li system

Journal Article · Sun Aug 01 00:00:00 EDT 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.70.024502· OSTI ID:20645968

Mitroy, J ^[1]

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1. Faculty of Technology, Charles Darwin University, Darwin, Northern Territory 0909 (Australia)

Close to converged energies and expectation values for e{sup +}Li are computed using a ground state wave function consisting of 1200 explicitly correlated Gaussians. The best estimate of the e{sup +}Li energy was -7.532 895 5 hartree which has a binding energy of 0.002 482 hartree against dissociation into Ps+Li{sup +}. The 2{gamma} annihilation rate for the spin singlet state was 6.996x10{sup 9} s{sup -1}. The annihilation rate for the triplet state, taking into account core annihilation and the 3{gamma} decay, was 9.36x10{sup 6} s{sup -1}.

• OSTI ID: 20645968
• Journal Information: Physical Review. A, Vol. 70, Issue 2; Other Information: DOI: 10.1103/PhysRevA.70.024502; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANNIHILATION
BINDING ENERGY
DECAY
DISSOCIATION
ELECTRONS
GROUND STATES
HADRONIC ATOMS
LITHIUM
LITHIUM IONS
POSITRONS
SPIN
TRIPLETS
WAVE FUNCTIONS