Measuring the sea quark polarization

Conference · Tue Jun 01 04:00:00 EDT 1993

OSTI ID:10167291

Makdisi, Y

Spin is a fundamental degree of freedom and measuring the spin structure functions of the nucleon should be a basic endeavor for hadron physics. Polarization experiments have been the domain of fixed target experiments. Over the years large transverse asymmetries have been observed where the prevailing QCD theories predicted little or no asymmetries, and conversely the latest deep inelastic scattering experiments of polarized leptons from polarized targets point to the possibility that little of the nucleon spin is carried by the valence quarks. The possibility of colliding high luminosity polarized proton beams in the Brookhaven Relativistic Heavy Ion Collider (RHIC) provides a great opportunity to extend these studies and systematically probe the spin dependent parton distributions specially to those reactions that are inaccessible to current experiments. This presentation focuses on the measurement of sea quark and possibly the strange quark polarization utilizing the approved RHIC detectors.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 10167291
• Report Number(s): BNL--49015; CONF-930389--20; ON: DE93015792
• Country of Publication: United States
• Language: English

Related Subjects

662440
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BEAM LUMINOSITY
BROOKHAVEN RHIC
DEGREES OF FREEDOM
MEASURING METHODS
PROPERTIES OF OTHER PARTICLES INCLUDING HYPOTHETICAL PARTICLES
PROTON BEAMS
QUANTUM CHROMODYNAMICS
QUARK MATTER
SPIN ORIENTATION
STRUCTURE FUNCTIONS
TRANSVERSE MOMENTUM
W MINUS BOSONS
W PLUS BOSONS