Elastic and inelastic scattering of 800 MeV/c K/sup + -/ mesons from carbon-12 and calcium-40

Thesis/Dissertation · Wed Dec 31 23:00:00 EST 1980

OSTI ID:5437385

Marlow, D R

Methods and results of an experiment to study the scattering of 800 MeV/c K/sup + -/ mesons from /sup 12/C and /sup 40/Ca are presented. The reactions under study include: the four elastic scattering reactions /sup 12/C(K *reverse arrow, K /sup + -/) and /sup 40/Ca(K/sup + -/,K/sup + -/), and the four inelastic scattering reactions, /sup 12/C(K/sup + -/k,K/sup + -/) to the J/sup P/ = 2/sup +/ 4.43 MeV and J/sup P/ = 3/sup -/ states. The experimental data were obtained using the Hyper-Nuclear Spectrometer and the Low Energy Separated Beam (LESBI) at the Alternating Gradient Synchrotron (AGS) of Brookhaven National Laboratory (BNL). Calculations using the program PIRK, an optical potential code, are compared to the elastic data. The results of a second set of calculations, using Glauber theory are also presented. The agreement between the experimental data and the theoretical predictions is reasonable over the angular range of the data, with the exception of Glauber calculations of the K/sup +/ elastic scattering. In those cases, the eikonal approximation proves to be a poor approximation. Both sets of calculations are extended to the inelastic reactions. The optical model calculations are done using a DWBA formalism, and the Glauber calculations are extended to the inelastic states by invoking the single impulse (SIC) approximation. Reasonable agreement with the inelastic data is realized only with the SIC calculations, leading one to conclude that the collective model descriptions of the transition densities are not adequate. The K/sup +/ scattering results show particular sensitivity to the details of the transition densities, confirming the predictions that the K/sup +/ would serve as a probe of the nuclear interior. This is compared to earlier results on pion scattering near the (3,3) resonance, where only a limited sensitivity to the nuclear interior was found.

• Research Organization: Carnegie-Mellon Univ., Pittsburgh, PA (USA)
• OSTI ID: 5437385
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645202 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BROOKHAVEN AGS
CALCIUM 40 TARGET
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
CYCLIC ACCELERATORS
ELASTIC SCATTERING
ENERGY RANGE
GLAUBER THEORY
HADRON REACTIONS
INELASTIC SCATTERING
KAON MINUS REACTIONS
KAON PLUS REACTIONS
KAON REACTIONS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
OPTICAL MODELS
SCATTERING
SYNCHROTRONS
TARGETS