pi. /sup -/p interactions at 205 GeV/c: Multiplicities of charged and neutral particles; production of neutral particles

Journal Article · Wed Jun 01 04:00:00 EDT 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.15.3163· OSTI ID:7219616

Ljung, D; Bogert, D; Hanft, R; Huson, F R; Kahn, S; Pascaud, C; Pruss, S; Smart, W M; Bingham, H H; Chew, D M; Daugeras, B Y; Fretter, W B; Goldhaber, G; Graves, W R; Johnson, A D; Kadyk, J A; Stutte, L; Trilling, G H; Winkelmann, F C; Yost, G P

A study of 205-GeV/c ..pi../sup -/p interactions has been made with a 48 800-picture exposure in the bare Fermilab 30-inch hydrogen bubble chamber. The average number of charged particles produced per inelastic interaction is 7.99 +- 0.06. The elastic cross section is 3.18 +- 0.13 mb and the total cross section is 24.19 +- 0.44 mb. The inclusive cross sections for neutral-particle production are sigma(..gamma..) = 171.3 +- 15.3 mb, sigma(K/sup 0//sub S/) = 3.64 +- 0.61 mb (x < 0.3), sigma (..lambda..) = 1.71 +- 0.34 mb (x < 0.3), and sigma(..lambda..-bar) = 0.59 +- 0.23 mb (x < 0.1). The average number of ..pi../sup 0/'s produced per inelastic collision is consistent with a linear rise with the number of charged particles, and about equal to the number of produced ..pi../sup -/ or ..pi../sup +/. The average number of K/sup 0/'s, ..lambda..'s, and ..lambda..-bar's is consistent with very little dependence on the number of charged particles. General characteristics of neutral-particle production are presented and compared with other experiments. For each topology the produced neutral energy is approx. 1/3 of the incident energy.

• Research Organization: Fermi National Accelerator Laboratory, Batavia, Illinois 60510
• OSTI ID: 7219616
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BUBBLE CHAMBERS
CHARGED PARTICLES
CROSS SECTIONS
CRYOGENIC BUBBLE CHAMBERS
ENERGY RANGE
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 100-1000
HADRON-HADRON INTERACTIONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MEASURING INSTRUMENTS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MULTIPLE PRODUCTION
MULTIPLICITY
NEUTRAL PARTICLES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
RADIATION DETECTORS
TOTAL CROSS SECTIONS