New measurements of proton polarized structure functions in charged current processes at DESY HERA

Journal Article · Thu May 01 00:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.5841· OSTI ID:562882

Anselmino, M ^[1]; Gambino, P ^[2]; Kalinowski, J ^[3]

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1. Dipartimento di Fisica Teorica, Universita di Torino and INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino (Italy)
2. Max Planck Institut fuer Physik, Werner Heisenberg Institut, Foehringer Ring 6, D80805 Muenchen (Germany)
3. Warsaw University, Institute of Theoretical Physics, Ul. Hoza 69, 00681 Warsaw (Poland)

Predictions for longitudinal spin asymmetries which single out new polarized nucleon structure functions in deeply inelastic charged current interactions at DESY HERA energies are given, exploiting their interpretation in terms of polarized quark distributions. These asymmetries turn out to be large and allow a measurement of the new polarized structure functions g{sub 1}{sup W} and g{sub 5}{sup W}, which would add valuable tests and information on the spin content of quarks inside a polarized proton. We also show that single-spin asymmetries in neutral current interactions are very small. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 562882
• Journal Information: Physical Review, D, Vol. 55, Issue 9; Other Information: PBD: May 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
PROTONS
STRUCTURE FUNCTIONS
SPIN
ELECTRON-PROTON INTERACTIONS
NUCLEONS
ASYMMETRY
DEEP INELASTIC SCATTERING
CHARGED CURRENTS
DESY
SPIN ORIENTATION