Higher-lying resonances in Ps-H scattering below the e{sup +}-H{sup -} threshold

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.034503· OSTI ID:22072231

Yan, Z -C ^[1]; Ho, Y K ^[2]

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1. Department of Physics, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3 (Canada)
2. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan (China)

In this work, we perform a study on high-lying S-wave resonances in Ps-H scattering below the e{sup +}-H{sup -} threshold. The method of complex-coordinate rotation is applied together with highly correlated wave functions containing all six interparticle distances. Using such Hylleraas bases up to 6412 terms, the energy positions up to the 8S state and the widths up to the 7S state in the Rydberg series converging to the H{sup -} threshold are determined. The energies of 4S to 7S states from the present calculations are fitted into the quantum defect formula, from which the energies of higher members in the Rydberg series can be deduced.

• OSTI ID: 22072231
• Journal Information: Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; 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
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HYDROGEN IONS 1 MINUS
POSITRONS
RESONANCE
ROTATION
RYDBERG STATES
S WAVES
SCATTERING
WAVE FUNCTIONS