ELEMENTARY AND COMPOSITE PARTICLES

Journal Article · Wed Nov 15 04:00:00 EST 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.124.1258· OSTI ID:4808649

Vaughn, M T; Aaron, R; Amado, R D

It is shown for two simple fixed-source theories with one stable excited state of the source that (1) a knowledge of the physical S-matrix elements of the theory is sufficien to decide if the state is associated with an elementary particle or a composite partiele, and (2) the theory in whic the particle is composite corresponds to the elementary particle theory in the limit of vanishing wave function renormalization constant of the elementary particle. The distinction between elementary and composite particle is related to a generalization of Levinson's theorem, and it is made plausible that this generalization is valid in local field theory. The result (2) is generalized, and an application to the dispersion-theoretic treatment of rearrangement collisions is suggested. (auth)

• Research Organization: Univ. of Pennsylvania, Philadelphia
• NSA Number: NSA-16-010866
• OSTI ID: 4808649
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 124; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

COLLISIONS
DISPERSION RELATIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
FIELD THEORY
LEVINSON THEOREM
MATRICES
PARTICLE MODELS
PARTICLE SOURCES
PHYSICS
QUANTUM MECHANICS
S-MATRIX
SCATTERING