A Relativistic Description of $\pi d$ Scattering. 2. Effects of Small $\pi N$ Waves, $N N$ Rescattering, $\rho$ Exchange and $\pi$ Absorption and Emission

Rinat, A.S.; Hammel, E.; Starkand, Y.; Thomas, Anthony William

doi:10.1016/0375-9474(79)90377-4

A Relativistic Description of $\pi d$ Scattering. 2. Effects of Small $\pi N$ Waves, $N N$ Rescattering, $\rho$ Exchange and $\pi$ Absorption and Emission

A.S. Rinat
(
- Weizmann Inst.
)
,
E. Hammel
(
- Stefan Meyer Inst. Subatomare Phys.
)
,
Y. Starkand
(
- Weizmann Inst.
)
,
Anthony William Thomas
(
- TRIUMF
)

Jun, 1979

23 pages

Published in:

Nucl.Phys.A 329 (1979) 285-307

Published: 1979

DOI:

10.1016/0375-9474(79)90377-4

Report number:

WIS-78/44-Ph

View in:

Nuclear Science References

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Abstract: (Elsevier)

Using a relativistic three-body theory we calculated elastic differential cross sections, polarisations and total cross sections for pion-deuteron scattering in the (3, 3) resonance region. Effects of pion absorption and emission have been calculated rigorously, including pion rescattering effects and ρ-meson exchange to all orders. Inclusion of pion absorption and emission produces appreciable changes in the large angle differential cross section and in all polarisation parameters. The inclusion of non-resonant π N partial waves leads to significantly improved agreement with experiment for T π = 142 MeV and at forward angles for 256 MeV. None of these effects, nor the inclusion of selected NN partial waves other than 3 S 1 - 3 D 1 , produces the deep minimum observed at 256 MeV.

PI DEUTERON: ELASTIC SCATTERING
ELASTIC SCATTERING: PI DEUTERON
THREE-BODY PROBLEM: RELATIVISTIC
DIFFERENTIAL CROSS SECTION: ANGULAR DEPENDENCE
POLARIZATION
CHANNEL CROSS SECTION
PI: ABSORPTION
ABSORPTION: PI
PI: EMISSION
EMISSION: PI

References(42)

Figures(0)

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(
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(
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