Journal ArticleDOI
Hyperspherical harmonics expansion of the ground state of the Ps - ion
Reads0
Chats0
TLDR
In this article, the ground state of the positronium negative ion (Ps−) was treated by a hyperspherical harmonics expansion method in which the center of mass motion was properly accounted for.Abstract:
We have treated the ground state of the positronium negative ion (Ps−) by a hyperspherical harmonics expansion method in which the centre of mass motion is properly accounted for. The resulting system of coupled differential equations has been solved by the renormalized Numerov method. We find that the convergence in the Binding Energy (BE) with respect to inclusion of higher hyperspherical partial waves is quite slow for this diffuse system. Using our exact numerical results up to a maximum of 28 for the hyper angular momentum quantum number (KM) in an extrapolation formula basd on the hyperspherical convergence theorems, we get the binding energy of the ground state of Ps− as 0.261 668 9 au.read more
Citations
More filters
Journal ArticleDOI
Hyperspherical three-body calculation for muonic atoms
TL;DR: In this paper, the ground state energies of exotic three-body atomic systems consisting two muons and a positively charged nucleus have been calculated using hyperspherical harmonics expansion (HHE) method.
Journal ArticleDOI
Investigation of halo structure of 6 He by hyperspherical three-body method
Abdul Khan,Tapan Kumar Das +1 more
TL;DR: In this article, a repulsive part is introduced in the interaction between the core and the extra-core neutron, to simulate Pauli principle, and two neutron separation energy, r.m.s. radii, correlation factor and probability density distributions have been calculated.
Journal ArticleDOI
Hyperspherical Three-Body Calculation for Exotic Atoms
TL;DR: In this paper, ground state energies of atomic three-body systems like negatively charged hydrogen, normal helium, positively charged-lithium, beryllium, carbon, oxygen, neon and negatively charged exotic muonium and positronium atoms have been calculated adopting hyperspherical harmonics expansion method.
Journal ArticleDOI
Low-Lying S-States of Two-Electron Systems
TL;DR: In this article, hyperspherical harmonics expansion method has been applied for two-electron ions 1H− (Z = 1) to 40Ar16+ (Z= 18), negatively charged-muonium Mu− and exotic positronium ion Ps−(e+e−e−) considering purely Coulomb interaction.
Journal ArticleDOI
Production of $$\Omega NN$$ and $$\Omega \Omega N$$ in ultra-relativistic heavy-ion collisions
TL;DR: In this article , the authors discussed the production of more exotic triple baryons including triple-baryons and their decay channels, as well as their bound states and binding energies.
References
More filters
Journal ArticleDOI
Positron annihilation in the positronium negative ion
TL;DR: A theoretical study of positronium negative ions is carried out in this article, where Hylleraas-type wavefunctions are employed to describe the system and an improved ground-state energy is reported.
Journal ArticleDOI
Convergence of generalized spherical harmonic expansions in the three nucleon bound state
TL;DR: In this article, the rate of convergence of approximate three nucleon binding energies obtained by expanding the bound state wave function in a truncated generalized spherical harmonic basis was investigated, and it was shown that the convergence rate is related to the properties of the two-body potential.
Journal ArticleDOI
Ground bound states in two-electron systems with Z=1
A M Frolov,A Y Yeremin +1 more
TL;DR: In this paper, two-electron systems with the charge of the central nuclei Z = 1 were considered within the framework of the non-relativistic three-body problem, and high-accuracy calculations of energies obtained to date for the Ps-, Mu-, H- and a number of exotic systems (such as e-(nme)+e-, where n>or=2) are presented
Journal ArticleDOI
Positron annihilation in positronium negative ions
TL;DR: The positron annihilation rate of positronium negative ions was calculated as 2.08613 ns−1 by using a 946 term Hylleraas-type wave function.
Journal ArticleDOI
Binding energies of the muonium and positronium negative ions
Piotr Petelenz,Vedene H. Smith +1 more
TL;DR: The integral transform (generator coordinate) method has been applied to calculate the binding energies and some expectation values for the positronium negative ion and for the recently discovered muonium negative ions.
Related Papers (5)
The renormalized Numerov method applied to calculating bound states of the coupled‐channel Schroedinger equation
Transformation coefficients in the hyperspherical approach to the three-body problem
J. Raynal,J. Revai +1 more