Published 2003 | Version v1
Journal article Metadata-only

The importance of the final-state interaction in np → ηd near threshold

Creators

  • 1. Escuela Superior de Fisica y Matematicas, Instituto Politecnico Nacional, Edificio 9, Mexico D.F. (Mexico)
  • 2. Centro de Fisica das Interaccoes Fundamentais, IST, Av. Rovisco Pais, Lisboa (Portugal)

Description

We have studied the process np → ηd in the region near threshold, within the framework of a three-body model. Although the magnitude of the cross section is highly dependent on the reaction mechanism, its shape is essentially determined by the ηd final-state interaction. This strong signature provides information about the ηN scattering length. We found that the np → ηd experimental data can only be explained if the ηN scattering length has a small real part. (author)

Additional details

Publishing Information

Journal Title
Few-Body Systems. Supplementum
Journal Volume
15
Journal Page Range
p. 49-60
ISSN
0177-8811

Conference

Title
from quarks to nuclei
Acronym
20. CFIF Fall Workshop. Nuclear dynamics
Dates
31 Oct - 2 Nov 2002
Place
Lisbon (Portugal)

INIS

Country of Publication
Austria
Country of Input or Organization
Austria
INIS RN
35072532
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CROSS SECTIONS; DEUTERONS; ETA MESONS; FINAL-STATE INTERACTIONS; NEUTRON REACTIONS; PARTICLE PRODUCTION; PROTON-NEUTRON INTERACTIONS; SCATTERING AMPLITUDES; SCATTERING LENGTHS; THREE-BODY PROBLEM; THRESHOLD ENERGY
Descriptors DEC
AMPLITUDES; BARYON REACTIONS; BARYON-BARYON INTERACTIONS; BOSONS; CHARGED PARTICLES; DIMENSIONS; ELEMENTARY PARTICLES; ENERGY; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; LENGTH; MANY-BODY PROBLEM; MESONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PROTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS