Cosmic-ray muons in the deep ocean

Journal Article · Sat Dec 01 00:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.42.3613· OSTI ID:6052805

Babson, J; Barish, B; Becker-Szendy, R; Bradner, H; Cady, R; Clem, J; Dye, S T; Gaidos, J; Gorham, P; Grieder, P K.F.; Jaworski, M; Kitamura, T; Kropp, W; Learned, J G; Matsuno, S; March, R; Mitsui, K; O'Connor, D; Ohashi, Y; Okada, A ; Peterson, V; Price, L; Reines, F; Roberts, A; Roos, C; Sobel, H; Stenger, V J; Webster, M; Wilson, C ^[1]

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1. University of Bern, Bern (Switzerland) California Institute of Technology, Pasadena, CA (USA) University of California at Irvine, Irvine, CA (USA) University of California at San Diego, La Jolla, CA (USA) Hawaii DUMAND Center, University of Hawaii, Honolulu, HI (USA) Purdue University, Layfayette, IN (USA) Institute for Cosmic Ray Research, University of Tokyo, Tokyo (Japan) Vanderbilt University, Nashville, TN (USA) University of Wisconsin, Madison, WI (USA)

A string of seven optical detectors deployed from a ship was used to detect the Cherenkov light from muons at ocean depths ranging from 2000 to 4000 m in intervals of {similar to}500 m. The flux and angular distributions of cosmic-ray muons were measured. An effective area for fivefold coincidences of 420 m{sup 2} for downward-going muons was achieved. The results are consistent with those derived from underground observations and theoretical calculations. The measured vertical intensity ranges from (9.84{plus minus}6.5){times}10{sup {minus}8} cm{sup {minus}2} s{sup {minus}1} sr{sup {minus}1} at 2090 m of water equivalent (mwe) to (4.57{plus minus}1.37){times}10{sup {minus}9} cm{sup {minus}2} s{sup {minus}1} sr{sup {minus}1} at 4157 mwe.

• OSTI ID: 6052805
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 42:11; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics & Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR DISTRIBUTION
CHARGED PARTICLE DETECTION
CHERENKOV COUNTERS
COINCIDENCE SPECTROMETRY
COSMIC MUONS
COSMIC RADIATION
DETECTION
DISTRIBUTION
DUMAND PROJECT
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
IONIZING RADIATIONS
LEPTONS
MAGNETIC SPECTROMETERS
MEASURING INSTRUMENTS
MUON DETECTION
MUONS
OPTICAL EQUIPMENT
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
SPECTROMETERS
UNDERWATER OPERATIONS