Elastic scattering of π+ and π− mesons from 3He and 4He at energies from 300 TO 475 MeV

doi:10.1016/0375-9474(87)90452-0

Nuclear Physics A

Volume 466, Issues 3–4, 11–18 May 1987, Pages 458-472

https://doi.org/10.1016/0375-9474(87)90452-0 Get rights and content

Abstract

The cross section for elastic scattering of pions from ³He and ⁴He was measured for incident energies from 300 to 475 MeV. The pions were detected in a magnetic spectrometer at scattering angles from 30° to 130°. Results on angular distributions are presented. A particularly interesting feature is that a deep minimum at 110°, previously observed at 295 MeV, is found to persist up to 400 MeV. The minimum is fixed in angle and is therefore not a simple function of q².

References (17)

F. Binon et al.
Nucl. Phys.
(1978)
R.H. Landau
Ann. of Phys.
(1975)
Yu.A. Shcherbakov et al.
Nuovo Cim.
(1976)
Yu.A. Shcherbakov et al.
Nuovo Cim.
(1976)
J. Kallne et al.
Phys. Rev. Lett.
(1980)
L.S. Celenza et al.
Phys. Rev.
(1976)
L.C. Liu et al.
Phys. Rev.
(1976)
J. Combe et al.
Nuovo Cim.
(1971)

There are more references available in the full text version of this article.

Cited by (8)

Energy levels of light nuclei A=3
2010, Nuclear Physics A
A compilation of experimental and theoretical information is presented on the mass 3 systems ³n, ³H, ³He and ³p. Emphasis is on advances since the previous evaluation Tilley et al. (1987) [1987TI07] such as, (1) detailed calculations of the vector and tensor analyzing powers for neutron and proton scattering by deuterium which led to the discovery of the still unresolved analyzing power puzzle, (2) the wide spread use of polarized ³He targets which allowed for the experimental study of sum rules among other things and (3) the ability to include the Coulomb interaction in three-body calculations. As stated in the 1987 evaluation and is still the case, there is no firm evidence for either excited states of ³H or ³He nuclei or for the existence of the trineutron or triproton.
Polarization observables in pion photoproduction on 3He
1992, Nuclear Physics, Section A
The single polarization observables Σ, P and T are presented for the reaction ³He(γ, π⁺)³H at various kinematics. The process is described in a recently developed nonlocal coupled-channel framework that employs three-body Faddeev amplitudes and incorporates two-step processes such as ³He(γ, π⁰)³He(π⁰, π⁺)³H. Enhancement effects of the contributions from small components of the ³He wave function as well as from the Δ-resonance E2 transition to the polarization observables have been found.
Quasielastic knockout of light fragments from 12C and 16O nuclei by intermediate-energy pions
2007, Physics of Atomic Nuclei
Quasielastic knockout of light fragments from 12C and 16O by intermediate-energy pions
2006, Bulletin of the Russian Academy of Sciences: Physics
Elastic scattering of pions from H3 and He3 into the backward hemisphere
1995, Physical Review C
Phase shift analysis of π±-4He elastic scattering
1993, Physical Review C

View all citing articles on Scopus

¹: Present address: JET, Abingdon, OX14 3EA, England.

²: Present address: CEBAF, 12070 Jefferson Ave., Newport News, VA. 23606, USA.

View full text

Article preview

Nuclear Physics A

Abstract

References (17)

Nucl. Phys.

Ann. of Phys.

Nuovo Cim.

Nuovo Cim.

Phys. Rev. Lett.

Phys. Rev.

Phys. Rev.

Nuovo Cim.

Cited by (8)

Energy levels of light nuclei A=3

Polarization observables in pion photoproduction on <sup>3</sup>He

Quasielastic knockout of light fragments from <sup>12</sup>C and <sup>16</sup>O nuclei by intermediate-energy pions

Quasielastic knockout of light fragments from <sup>12</sup>C and <sup>16</sup>O by intermediate-energy pions

Elastic scattering of pions from H3 and He3 into the backward hemisphere

Phase shift analysis of π±-4He elastic scattering