Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 62505-62514 |
| Number of pages | 10 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 75 |
| Publication status | Published - 2007 |
Fingerprint
Cite this
}
Positronic complexes with unnatural parity. / Bromley, Michael; Mitroy, James; VARGA, K.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 75, 2007, p. 62505-62514.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Positronic complexes with unnatural parity
AU - Bromley, Michael
AU - Mitroy, James
AU - VARGA, K
PY - 2007
Y1 - 2007
N2 - The structure of the unnatural parity states of PsH, LiPs, NaPs, and KPs are investigated with the configuration interaction and stochastic variational methods. The binding energies (in hartree) are found to be 8.17�10-4, 4.42�10-4, 15.14�10-4, and 21.80�10-4, respectively. These states are constructed by first coupling the two electrons into a configuration which is predominantly Pe3, and then adding a p -wave positron. All the active particles are in states in which the relative angular momentum between any pair of particles is at least L=1. The LiPs state is Borromean since there are no three-body bound subsystems (of the correct symmetry) of the (Li+, e-, e-, e+) particles that make up the system. The dominant decay mode of these states will be radiative decay into a configuration that autoionizes or undergoes positron annihilation. � 2007 The American Physical Society.
AB - The structure of the unnatural parity states of PsH, LiPs, NaPs, and KPs are investigated with the configuration interaction and stochastic variational methods. The binding energies (in hartree) are found to be 8.17�10-4, 4.42�10-4, 15.14�10-4, and 21.80�10-4, respectively. These states are constructed by first coupling the two electrons into a configuration which is predominantly Pe3, and then adding a p -wave positron. All the active particles are in states in which the relative angular momentum between any pair of particles is at least L=1. The LiPs state is Borromean since there are no three-body bound subsystems (of the correct symmetry) of the (Li+, e-, e-, e+) particles that make up the system. The dominant decay mode of these states will be radiative decay into a configuration that autoionizes or undergoes positron annihilation. � 2007 The American Physical Society.
KW - Angular momentum
KW - Binding energy
KW - Ground state
KW - Molecular interactions
KW - Molecular structure
KW - Random processes
KW - Positronic complexes
KW - Stochastic variational methods
KW - Positron annihilation
M3 - Article
VL - 75
SP - 62505
EP - 62514
JO - Physical Review A
JF - Physical Review A
SN - 1050-2947
ER -