Spin effects in inclusive [Lambda] production using 200 GeV polarized protons
Thesis/Dissertation
·
OSTI ID:7197465
The author has used the Fermilab Polarized Proton Beam Facility to measure the Analyzing Power and the Depolarization parameters of the inclusive reaction p[up arrow] + p [yields] [Lambda] + X. The [Lambda] Polarization was also observed as a consistency check against existing data. The kinematic range of the accepted [Lambda]'s centers at x[sub F] = 0.5 and p[sub t] = 0.6 GeV/c, with x[sub F] reaching up to 0.8 and p[sub T] up to 1.1 GeV/c. The Polarization was found to be consistent with previous measurements. The Analyzing Power and Depolarization were found to be near zero at all kinematics bins and in agreement with the only set of existing data which were measured at much lower energies. Beam energy dependency was confirmed. The results from the author's [Lambda] data do not contradict predictions made by the Thomas precession model which implies that the proton's spin is carried by the valence quarks.
- Research Organization:
- Rice Univ., Houston, TX (United States)
- OSTI ID:
- 7197465
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662340 -- Hadron Interactions-- (1992-)
662410* -- Properties of Baryons & Baryon Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALYZING POWER
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
BARYONS
DEPOLARIZATION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 100-1000
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LAMBDA BARYONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
PROTONS
SPIN
STRANGE PARTICLES
662410* -- Properties of Baryons & Baryon Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALYZING POWER
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
BARYONS
DEPOLARIZATION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 100-1000
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LAMBDA BARYONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
PROTONS
SPIN
STRANGE PARTICLES