Observation of the production of short-lived particles in a high-resolution streamer-chamber experiment

Journal Article · Mon Apr 28 04:00:00 EDT 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.44.1104· OSTI ID:5405656

Sandweiss, J; Cardello, T; Cooper, P; Dhawan, S; Kellogg, R; Ljung, D; Ludlam, T; Majka, R; McBride, P; Nemethy, P; Rosselet, L; Slaughter, A J; Taft, H D; Teig, L; Tzeng, L; Ecklund, S; Johnson, M

Short-lived particles produced in association with muons have been observed in the interactions of 350-GeV/c protons with neon in a high-resolution streamer chamber. The characteristics of these events are consistent with the expected properties of charmed particles if the average lifetime lies between 10/sup -13/ and 2 x 10/sup -12/ sec. With the assumption that the observed events are mainly D/sup + -/ mesons with lieftimes of approximately 10/sup -12/ sec, the production cross section is estimated to lie between 20 and 50 ..mu..b per nucleon.

• Research Organization: Yale University, New Haven, Connecticut 06520
• OSTI ID: 5405656
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 44:17; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BUBBLE CHAMBERS
CHARM PARTICLES
CROSS SECTIONS
DECAY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 100-1000
HADRON-HADRON INTERACTIONS
INTERACTIONS
LEPTONS
LIFETIME
MEASURING INSTRUMENTS
MONTE CARLO METHOD
MUONS
NEON
NONMETALS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
RADIATION DETECTORS
RARE GASES
SPARK CHAMBERS
STREAMER SPARK CHAMBERS