Measurements of {delta}{sigma}{sub {ital L}}({ital pp}) and {delta}{sigma}{sub {ital L}}({ital {bar p}}{ital p}) at 200 GeV/c

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48911· OSTI ID:257277

Grosnick, D P ^[1]

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1. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

A measurement was made at Fermilab of the difference in the total cross sections between states with beam and target polarizations aligned antiparallel and parallel, {delta}{sigma}{sub {ital L}}={delta}{sigma}({r_reversible})-{delta}({sigma}{sq_bullet}) using 200-GeV/c, polarized proton and antiproton beams and a polarized proton target. This measurement explores the spin dependence of particle interactions and the constituent dynamics. A difference in the spin-dependent total cross sections has been observed in previous experiments at lower energies, and this experiment was the first to explore possible spin effects in {delta}{sigma}{sub {ital L}} at much higher energies. {copyright} {ital 1995 American Institute of Physics.}

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 257277
• Report Number(s): CONF-9409103--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 343; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GEV RANGE 100-1000
POLARIZATION-ASYMMETRY RATIO
POLARIZED BEAMS
POLARIZED TARGETS
PROTON-ANTIPROTON INTERACTIONS
PROTON-PROTON INTERACTIONS
SPIN
TOTAL CROSS SECTIONS