Deeply penetrating events in the extremely high-energy cosmic ray flux

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1992

OSTI ID:7158105

Emerson, B L

This dissertation will present the results of a search for deeply penetrating particles in the Extremely High Energy (EHE) (particle energy [ge]10[sup 17]eV) cosmic ray flux. The data are from the University of Utah Fly's Eye detector which is a unique detector for observing cosmic rays in this energy regime. Central to this search is the definition of a robust signature for deeply penetrating Extensive Air Showers (EAS) which is given as follows: Candidate deeply penetrating events are those whose plan normal angle ([theta][sub n]) is less than 18[degrees]. The absence of events in the Fly's Eye data set meeting this criterion is examined in the context of models of astrophysical neutrino flux and charm production at EHE energies. The use of the calculations in this dissertation to test other models for the production of deeply penetrating extensive air showers is described where needed.

• Research Organization: Utah Univ., Salt Lake City, UT (United States)
• OSTI ID: 7158105
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIATION
COSMIC RAY DETECTION
COSMIC RAY FLUX
COSMIC SHOWERS
DETECTION
ENERGY RANGE
EXTENSIVE AIR SHOWERS
IONIZING RADIATIONS
PEV RANGE
RADIATION DETECTION
RADIATION FLUX
RADIATIONS
SECONDARY COSMIC RADIATION
SHOWERS