PHENIX Measurement of Parity-Violating Single Spin Asymmetry in W Production in p+p Collisions at 500 GeV

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3601421· OSTI ID:21608235

Pate, Stephen ^[1]

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1. Physics Department, New Mexico State University, Las Cruces NM 88003 (United States)

The flavor-separated polarized parton distribution functions for light quarks and anti-quarks in the proton can be studied in the production of W bosons in p+p collisions. The Ws are produced in processes like u+d-bar{yields}W{sup +} and u-bar+d{yields}W{sup -} and we observe the lepton (an electron or muon) from the decay channel W{sup {+-}}{yields}l{sup {+-}}{nu}. The electron energy spectrum from W decays measured with an integrated luminosity of approximately 10 pb{sup -1} will be shown, with a measurement of the electron single spin asymmetry in central rapidity.

• OSTI ID: 21608235
• Journal Information: AIP Conference Proceedings, Vol. 1350, Issue 1; Conference: DIFFRACTION 2010: International workshop on diffraction in high energy physics, Otranto (Italy), 10-15 Sep 2010; Other Information: DOI: 10.1063/1.3601421; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ASYMMETRY
D QUARKS
DISTRIBUTION FUNCTIONS
ELECTRONS
FLAVOR MODEL
GEV RANGE
GLUONS
LEPTONIC DECAY
MULTIPARTICLE SPECTROMETERS
MUONS
NEUTRINOS
PARITY
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE RAPIDITY
PROTONS
SPIN
U QUARKS
W MINUS BOSONS
W PLUS BOSONS
ANGULAR MOMENTUM
BARYONS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FUNCTIONS
HADRONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NUCLEONS
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MODEL
QUARKS
SPECTROMETERS
WEAK INTERACTIONS
WEAK PARTICLE DECAY