$pi$-MESON PRODUCTION IN 2.9-Bev p-p COLLISIONS

Journal Article · Fri Dec 15 04:00:00 EST 1961 · Phys. Rev. Letters

DOI:https://doi.org/10.1103/PhysRevLett.7.454· OSTI ID:4820373

Melissinos, A C; Fazio, G G; Yamanouchi, T; Lindenbaum, S J; Yuan, L C.L.

The momentum spectrum of charged pi mesons produced in proton interactions at 2.9 Bev was measured, using counter techniques. Detailed momentum spectra of the pi mesons as a function of the angle are provided. The experiment was performed at Brookhaven's Cosmotron using the external proton beam III and a liquid H/sub 2/ target. The spectra were measured at 0, l7, and 32 deg in the laboratory; the circulating beam intensity ranged from 2 x 10/sup 10/ to 2 x 10/sup 11/ protons/pulse with 30% extraction efficiency to the second focus. A summary of the integrated cross sections is given and comparison is made with results of the bubble chamber Work. Agreement was obtained. The shape of the momentu spectra at various angles, especially 0 deg , provides a crucial test for the most current theories on pi production. (L.N.N.)

• Research Organization: Univ. of Rochester, N.Y.
• NSA Number: NSA-16-006974
• OSTI ID: 4820373
• Journal Information: Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 7
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
CHARGED PARTICLES
COLLISIONS
COUNTERS
CROSS SECTIONS
DIFFERENTIAL EQUATIONS
EFFICIENCY
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORY
GEV RANGE
HYDROGEN
INTERACTIONS
LIQUIDS
MEASURED VALUES
MESONS
MOMENTUM
PARTICLE MODELS
PHYSICS
PIONS
PRODUCTION
PROTON BEAMS
PULSES
SCATTERING
SPECTRA
SYNCHROTRONS
TARGETS
WAVE MECHANICS