Author: Jose Pablo MestrePublisher:
ISBN:
Category : Pions
Languages : en
Pages : 214
Book Description
Pion Scattering from the Mass Three System
Author: Jose Pablo MestrePublisher:
ISBN:
Category : Pions
Languages : en
Pages : 214
Book Description
Three Pion Scattering at Maximal Isospin from Lattice QCD at Physical Mass
Author: Martin UedingPublisher:
ISBN:
Category : Isobaric spin
Languages : en
Pages :
Book Description
Pion-proton Scattering at 150 and 170 Mev
Author: J. AshkinPublisher:
ISBN:
Category : Carnegie Institute of Technology
Languages : en
Pages : 86
Book Description
Scientific and Technical Aerospace Reports
Author: Particle Theory Approach to the Two-pion and Three-pion Systems
Author: L. I. SCHIFFPublisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
The relation between the two-pion and three-pion resonances is discussed in terms of a model in which the motion of the pions is described by a partially relativistic Schrodinger-type wave equation, and the interaction between them is represented by a static potential. An attractive square-well potential that is almost strong enough to bind the di-pion gives a satisfactory account of the observed P-wave pion-pion scattering. If this potential is assumed to be additive between all pairs in the three-pion I = 0, J = 1( - ) state, it produces far too much binding to agree with observation. As an alternative to additivity, the interaction may be assumed to saturate, so that the total potential never exceeds that between any pair of pions. It is found that the model provides a qualitatively consistent explanation both of pion-pion scattering and the three-pion system if the pair interactions saturate or nearly saturate. (Author).
Multiple-scattering Theory for Pion-nucleus Scattering Near the 3,3 Resonance
Author: Lowell Arthur CharltonPublisher:
ISBN:
Category : Mesons
Languages : en
Pages : 264
Book Description
The Nature of Hadrons and Nuclei by Electron Scattering
Author: Amand FaesslerPublisher: Elsevier
ISBN: 1483103196
Category : Science
Languages : en
Pages : 390
Book Description
Progress in Particle and Nuclear Physics, Volume 24: The Nature of Hadrons and Nuclei by Electron Scattering covers the proceedings of the International School of Nuclear Physics. The book presents 24 papers that discuss topics concerning hadrons and nuclei. The coverage of the text includes electron scattering and few-nucleon systems; occupation probabilities of shell-model orbitals; and the response function of nuclear matter. The book also tackles the internal spin structure of the nucleon; parity-violating electron scattering; and hard pion exchange currents and the backward deuteron disintegration. The text will be of great use to scientists involved in hadron and nucleon research.
Nuclear Science Abstracts
Author: Three Particle Model of the Pion-nucleon System
Author: Fatih BulutPublisher:
ISBN:
Category :
Languages : en
Pages : 119
Book Description
A relativistic, three particle model of the pion-nucleon system is constructed in the instantform of relativistic quantum mechanics using the Bakamjian-Thomas procedure. The modelspace includes subspaces for the nucleon (N), the resonances & delta;= P33 (1232), P11 (1440), D13(1520), S11 (1535), and S31 (1620), as well as & pi;N, & pi & delta;, & eta;N, and & pi; & pi;N subspaces. The modelspecifies a Poincaré invariant mass operator that includes vertex interactions that couple thevarious subspaces, as well as renormalization terms. Projection operator techniques are used toreduce the equations arising from this mass operator to a set of three-dimensional Lippmann-Schwinger integral equations that couple only the & pi;N, & pi; & delta;, and & eta;N channels. After a partial waveanalysis these three-dimensional equations simplify to three coupled, one-dimensional integralequations for each partial wave. The mass operator interactions are derived from effective, hadronic Lagrangians that introduce a set of coupling constants. Cutoff functions are introducedto take into account the non-elementary nature of the particles in the model. These cutofffunctions introduce a set of cutoff masses. The coupling constants and cutoff masses aredetermined by fitting a partial wave analysis of pion-nucleon elastic scattering up to a c.m.energy of W = 1550 MeV.
Author: