2001/06/13 by P K Biswas, Priyanka Biswas, Biswas, P K +2
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #Quantum, superfluid, helium dynamics #physics.atom-ph
paper · pdf · doi:10.48550/arxiv.physics/0106041
13 pages plus 4-figures
arxiv created 2001/06/13 · openalex publication_date 2001/06/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The coupled-channel model [Phys. Rev. A \bf 59, 363 (1999)] that yields converged low-energy phase shifts, and exact binding and resonance features in Ps-H [Phys. Rev. A \bf 59, 2058 (1999)] is applied to study Ps-He+ scattering. Similar to PsH, resonances appear in the S-, P-, D-, etc partial waves in the Ps-He+ system but in both the singlet and triplet scattering channels. The latter signifies possible Rydberg states of e+ around singlet and triplet helium. The S-wave singlet resonance at 2.79 eV agrees to that predicted earlier in e+-He entrance channel (energy difference 16.64 eV) at 19.27 eV [Chem. Phys. Lett. \bf 262, 460 (1996)].