Lowest open channels, bound states, and narrow resonances of dipositronium

2003/04/29 by C. G. Bao, Ting Shi, T. Y. Shi · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Muon and positron interactions and applications #Quantum and electron transport phenomena #Synthesis and characterization of novel inorganic/organometallic compounds #physics.atm-clus #physics.atom-ph

paper · pdf · doi:10.1103/physreva.67.042505

published as Phys. Rev. A 67 (2003) 042505 · 10 pages, 0 figures

openalex publication_date 2003/04/29 · arxiv created 2003/09/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The constraints imposed by symmetry on the open channels of dipositronium has been studied, and the symmetry-adapted lowest open channel of each quantum state has been identified. Based on this study, the existence of two more 0⁺ bound states has been theoretically confirmed, and a 0⁺ narrow resonance has been predicted. A variational calculation has been performed to evaluate the critical strength of the repulsive interaction. Two 0^\ensuremath- states are found to have their critical strengths very close to 1, they are considered as candidates of new narrow resonances or loosely bound states.

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