M W J Bromley et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 4449 doi:10.1088/0953-4075/31/19/027
The elastic scattering of positrons from beryllium and magnesium in the low-energy region
M W J Bromley, J Mitroy and G Ryzhikh
Show affiliationsThe elastic scattering of positrons from beryllium and magnesium is studied by using a simple model potential to represent the interaction between the positron and target atoms. The model is tuned by adjusting the free parameters to reproduce previous predictions of the positron binding energies of the 
and 
ground states. An indication of the theoretical uncertainty in the derived phase shifts and cross sections is given by running a series of calculations with slightly different model potentials. The estimated scattering lengths are 
and 
for Be and Mg, respectively. The total cross section for positron-magnesium scattering constructed by adding the inelastic cross section computed with many-body perturbation theory to the present elastic cross section is broadly consistent with the experimental data.
- PACS
- Subjects
- Dates
-
Issue 19 (14 October 1998)
Received 8 June 1998
-
The elastic scattering of positrons from beryllium and magnesium in the low-energy region
M W J Bromley et al 1998 J. Phys. B: At. Mol. Opt. Phys. 31 4449
-
The Relationship between Stellar and Black Hole Mass in Submillimeter Galaxies
C. Borys et al. 2005 ApJ 635 853
-
Analytical solution of the Ornstein-Zernike equation for a multicomponent fluid
M Yasutomi and M Ginoza 2000 J. Phys.: Condens. Matter 12 L605
-
High-Energy Gamma-Ray Observations of Two Young, Energetic Radio Pulsars
V. M. Kaspi et al. 2000 ApJ 528 445
-
An open FRW model in loop quantum cosmology
Łukasz Szulc 2007 Class. Quantum Grav. 24 6191
-
Colloidal suspensions, Brownian motion, molecular reality: a short history
M D Haw 2002 J. Phys.: Condens. Matter 14 7769
-
Determination of the energy-momentum densities of aluminium by electron momentum spectroscopy
M Vos et al 1999 J. Phys.: Condens. Matter 11 3645
-
Re-entrant disordering of colloidal molecular crystals on two-dimensional periodic substrates
M Mikulis et al 2004 J. Phys.: Condens. Matter 16 7909
-
A Radio Supernova Remnant Associated with the Young Pulsar J1119–6127
Fronefield Crawford et al. 2001 ApJ 554 152
-
Regular conjugacy classes in the Weyl group and integrable hierarchies
F Delduc and L Feher 1995 J. Phys. A: Math. Gen. 28 5843