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Constraints on the non-unique polynomial solutions of an inverse coupled functional problem

- M. Kermode, S. Cooper
- Mathematics
- 1 May 1988

The determination of functions u(r) in the region 0<or=r<or=R from the functionals Fi(u)=ci(i=1, . . .,n) and the boundary conditions on u and its derivatives is considered for a simple case when n=2… Expand

Test of a theory for stripping to unbound levels with more than one open channel

A test is made of a theoretical prescription for calculating the energy-differential cross section for a stripping reaction A(3He, d)B* into the continuum when B* can decay into more than one… Expand

Analysis of the DWBA for (7Li,t) reactions producing alpha-cluster states in 16O and 20Ne

- S. Cooper
- Physics
- 1 May 1986

The DWBA has been applied to (7Li,t) reactions populating alpha -cluster levels in 16O and 20Ne, using the Weinberg formulation to describe states unbound to alpha decay. Useful spectroscopic factors… Expand

Local $^4$He--p potentials from RGM phase shifts

- S. Cooper, R. Mackintosh, A. Csótó, R. Lovas
- Physics
- 6 September 1993

Phase shifts for $\alpha$ + nucleon scattering generated by a multichannel RGM model of the five-nucleon system are subjected to iterative-perturbative ``mixed-case" inversion for energies below the… Expand

16O + 16O elastic scattering at 350 MeV studied by inversion

- S. Cooper, R. Mackintosh
- Physics
- 29 August 1994

Abstract We have analysed 16 O + 16 O elastic scattering at 350 MeV using a two-step method (ifS(l) search followed by ifS(t)-to-V(r) inversion. We have constrained the procedure so that only rather… Expand

A DWBA analysis for 14N(7Li,t)18F* to study α clustering in 18F

- S. Cooper
- Physics
- 1 September 1986

Distorted wave Born approximation (DWBA) calculations are presented for the (7Li,t) reactions to alpha -cluster levels in 18F and compared with the measurements of Cobern and Parker (1977). Direct… Expand

Systematics of the pickup contribution to the nucleon-nucleus interaction

- S. Cooper, R. Mackintosh, A. Ioannides
- Physics
- 21 September 1987

Abstract The considerable contribution of pickup channels to the nucleon-nucleus potential has been studied systematically by using an inversion procedure to process the S-matrix elements from a… Expand

S-Matrix to potential inversion of low-energy α−12C phase shifts

- S. Cooper, R. Mackintosh
- Physics
- 22 October 1990

Abstract The IP S -matrix to potential inversion procedure is applied to phase shifts for selected partial waves over a range of energies below the inelastic threshold for α −12 C scattering. The… Expand

11Li + 28Si and 11Li + 12C elastic scattering studied by inversion

- S. Cooper, R. Mackintosh
- Physics
- 23 January 1995

Abstract We apply two-step phenomenology ( S ( l ) fit then inversion) to establish local potentials fitting the elastic scattering of 11 Li from 28 Si at 319 MeV lab energy and 11 Li from 12 C at… Expand

Exchange non-locality in n-{sup 16}O scattering

- D. Lukaszek, G. Rawitscher, S. Cooper
- Physics
- 1 April 1993

The authors extend to an incident lab-energy of 50 MeV a previous rigorous calculation of the effect of the exchange nonlocality on the optical potential (OP), using a complex microscopic effective… Expand

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