Pion-deuteron scattering sensitivity to the nucleon-nucleon hard core

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Abstract

We calculate pion-deuteron elastic scattering at 142, 181, and 254 MeV, using four separable models of the off-shell nucleon-nucleon T matrix. The form factors for two of these models were obtained by fitting the low-energy data, as well as the change of sign of the phase shifts at Tlab300 MeV, by means of energy-dependent separable potentials. These form factors have ranges in momentum space which are larger than those of the Yamaguchi potentials. We find that the differential cross section for pion-deuteron scattering is very sensitive to the off-shell behavior of the nucleon-nucleon T matrix. We also find that it is possible to fit the data at 254 MeV by using the long-range form factors that take into account the hard core, although the data at 142 MeV is better described using shorter ranges. NUCLEAR REACTIONS d()d, E=142, 181, 254 MeV; calculated dd. © 1981 The American Physical Society.
Original languageAmerican English
Pages (from-to)2632-2634
Number of pages2368
JournalPhysical Review C
DOIs
StatePublished - 1 Jan 1981

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Mesons
Deuterium
deuterons
form factors
pions
sensitivity
scattering
matrices
elastic scattering
phase shift
momentum
energy
cross sections
Nucleons

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@article{5349147318bd4b24a214e5fee9e45af5,
title = "Pion-deuteron scattering sensitivity to the nucleon-nucleon hard core",
abstract = "We calculate pion-deuteron elastic scattering at 142, 181, and 254 MeV, using four separable models of the off-shell nucleon-nucleon T matrix. The form factors for two of these models were obtained by fitting the low-energy data, as well as the change of sign of the phase shifts at Tlab300 MeV, by means of energy-dependent separable potentials. These form factors have ranges in momentum space which are larger than those of the Yamaguchi potentials. We find that the differential cross section for pion-deuteron scattering is very sensitive to the off-shell behavior of the nucleon-nucleon T matrix. We also find that it is possible to fit the data at 254 MeV by using the long-range form factors that take into account the hard core, although the data at 142 MeV is better described using shorter ranges. NUCLEAR REACTIONS d()d, E=142, 181, 254 MeV; calculated dd. {\circledC} 1981 The American Physical Society.",
author = "Humberto Garcilazo",
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doi = "10.1103/PhysRevC.23.2632",
language = "American English",
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publisher = "American Physical Society",

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Pion-deuteron scattering sensitivity to the nucleon-nucleon hard core. / Garcilazo, Humberto.

In: Physical Review C, 01.01.1981, p. 2632-2634.

Research output: Contribution to journalArticle

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T1 - Pion-deuteron scattering sensitivity to the nucleon-nucleon hard core

AU - Garcilazo, Humberto

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Y1 - 1981/1/1

N2 - We calculate pion-deuteron elastic scattering at 142, 181, and 254 MeV, using four separable models of the off-shell nucleon-nucleon T matrix. The form factors for two of these models were obtained by fitting the low-energy data, as well as the change of sign of the phase shifts at Tlab300 MeV, by means of energy-dependent separable potentials. These form factors have ranges in momentum space which are larger than those of the Yamaguchi potentials. We find that the differential cross section for pion-deuteron scattering is very sensitive to the off-shell behavior of the nucleon-nucleon T matrix. We also find that it is possible to fit the data at 254 MeV by using the long-range form factors that take into account the hard core, although the data at 142 MeV is better described using shorter ranges. NUCLEAR REACTIONS d()d, E=142, 181, 254 MeV; calculated dd. © 1981 The American Physical Society.

AB - We calculate pion-deuteron elastic scattering at 142, 181, and 254 MeV, using four separable models of the off-shell nucleon-nucleon T matrix. The form factors for two of these models were obtained by fitting the low-energy data, as well as the change of sign of the phase shifts at Tlab300 MeV, by means of energy-dependent separable potentials. These form factors have ranges in momentum space which are larger than those of the Yamaguchi potentials. We find that the differential cross section for pion-deuteron scattering is very sensitive to the off-shell behavior of the nucleon-nucleon T matrix. We also find that it is possible to fit the data at 254 MeV by using the long-range form factors that take into account the hard core, although the data at 142 MeV is better described using shorter ranges. NUCLEAR REACTIONS d()d, E=142, 181, 254 MeV; calculated dd. © 1981 The American Physical Society.

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