Zobrazeno 1 - 10
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pro vyhledávání: '"Mackintosh, R"'
Publikováno v:
Phys. Rev. C 100, 054615 (2019)
Background: A recent coupled reaction channel (CRC) study shows that the enhanced oscillation of the elastic $^{16}$O+$^{12}$C cross section at backward angles is due mainly to the elastic $\alpha$ transfer or the core exchange. Such a process gives
Externí odkaz:
http://arxiv.org/abs/1911.07770
Autor:
Mackintosh, R. S.
Stimulated by a recent preprint of Bricmont and Goldstein.
Comment: 4 pages
Comment: 4 pages
Externí odkaz:
http://arxiv.org/abs/1804.04427
Autor:
Mackintosh, R. S.
The relationship between $l$-dependence and undularity of the optical model potential (OMP) is studied for the case of the elastic scattering of 33 MeV \nuc{3}{He} on $^{58}$Ni. The relationship that emerges follows the general features of the same r
Externí odkaz:
http://arxiv.org/abs/1801.08493
Autor:
Mackintosh, R. S.
The contribution of collective or reaction channels to a local optical model potential, OMP, can be readily calculated as a dynamical polarization potential, DPP. The resulting local DPPs commonly have undulatory (`wavy') features, often including lo
Externí odkaz:
http://arxiv.org/abs/1705.07003
Autor:
Mackintosh, R. S.
Publikováno v:
Eur. Phys. J. A (2017) 53:66
We argue that, in many situations, fits to elastic scattering data that were historically, and frequently still are, considered `good', are not justifiably so describable. Information about the dynamics of nucleon-nucleus and nucleus-nucleus scatteri
Externí odkaz:
http://arxiv.org/abs/1704.03230
Autor:
Mackintosh, R. S., Keeley, N.
The consequences for direct reactions of the dynamical non-locality generated by the excitation of the target and projectile are much less studied than the effects of non-locality arising from exchange processes. Here we are concerned with the dynami
Externí odkaz:
http://arxiv.org/abs/1610.07378
Publikováno v:
Physical Review C 91, 024616 (2015)
Background: An anomaly in the elastic scattering of O-16 on C-12 around 300 MeV was resolved by including collective excitations of both nuclei, leading to a secondary rainbow. There is little systematic knowledge of the contribution of collective ex
Externí odkaz:
http://arxiv.org/abs/1502.06852
Akademický článek
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Autor:
Mackintosh, R. S.
The nuclear optical model potential (OMP) is generally assumed to be independent of the orbital angular momentum, $l$, of the interacting nuclei. Nucleon-nucleus and nucleus-nucleus interactions are customarily $l$ independent in calculations of nucl
Externí odkaz:
http://arxiv.org/abs/1302.1097
Autor:
Mackintosh, R. S., Keeley, N.
Publikováno v:
Phys.Rev.C81:034612,2010; Phys.Rev.C83:057601,2011
The dynamic polarization potential (DPP) contribution to the effective proton-nucleus interaction, that is due to the coupling of deuteron channels, is evaluated by applying $S_{lj} \to V(r)$ inversion to the elastic channel $S$-matrix from coupled r
Externí odkaz:
http://arxiv.org/abs/0707.1654