QUESTION OF NUCLEON CLUSTERS IN THE NUCLEAR SURFACE

Journal Article · Fri Apr 01 04:00:00 EST 1960 · Phys. Rev. Letters

DOI:https://doi.org/10.1103/PhysRevLett.4.367· OSTI ID:4170405

McCarthy, I E; Prowse, D J

S> Wilkinson suggested that evidence for the existence of nucleon clusters in the region of the nucleus where the density is less than 20% of its central value is provided by the absorption of K/sup -/ mesons by nuclei in photographic emulsions. Wilkinson determined that the two-nucleon reaction occurs in the periphery and assumes that the mechanism for the absorption of K/ sup -/ meson is a reaction with the first nucleon or cluster that it encounters. It is known from the interaction of K/sup -/ mesons in a hydrogen bubble chamber that the cross section for elastic scattering is roughly equal to that for the catastrophic reaction producing a SIGMA hyperon. A mechanism which reconciles the above facts is as follows: the K/sup -/ meson, elastically scattered by the first nucleon it encounters, drops into a part of the nuclear surface where the density is comparable with that of saturated nuclear matter. Most of the one- nucleon events would be expected to take place in the periphery, but all of the two-nucleon events to take place in a region where the density of nuclear matter is an appreciable fraction of tts maximum value. (C.J.G.)

• Research Organization: Univ. of California, Los Angeles
• NSA Number: NSA-14-014400
• OSTI ID: 4170405
• Journal Information: Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 4
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
BUBBLE CHAMBERS
CLUSTER MODEL
CONFIGURATION
CROSS SECTIONS
DENSITY
HYDROGEN
INTERACTIONS
KAONS
KAONS-MINUS
NUCLEAR EMULSIONS
NUCLEAR MODELS
NUCLEAR STRUCTURE
NUCLEAR THEORY
NUCLEI
NUCLEONS
PHYSICS
SCATTERING
SIGMA PARTICLES
SURFACES