Spin and flavor strange quark content of the nucleon

Journal Article · Tue Jul 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.014001· OSTI ID:21250207

Dahiya, Harleen ^[1]; Gupta, Manmohan ^[2]

---

1. Department of Physics, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, 144001 (India)
2. Department of Physics, Centre of Advanced Study in Physics, Panjab University, Chandigarh 160014 (India)

Several spin and flavor dependent parameters characterizing the strangeness content of the nucleon have been calculated in the chiral constituent quark model with configuration mixing ({chi}CQM{sub config}) which is known to provide a satisfactory explanation of the ''proton spin crisis'' and related issues. In particular, we have calculated the strange spin polarization {delta}s, the strangeness contribution to the weak axial vector couplings {delta}{sub 8} etc., strangeness contribution to the magnetic moments {mu}(p){sup s} etc., the strange quark flavor fraction f{sub s}, the strangeness dependent quark flavor ratios (2s/u+d) and (2s/u+d) etc. Our results are consistent with the recent experimental observations.

• OSTI ID: 21250207
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
COMPUTERIZED SIMULATION
CONFIGURATION MIXING
COUPLING
FLAVOR MODEL
MAGNETIC MOMENTS
PROTONS
QUARK MODEL
S QUARKS
SPIN
SPIN ORIENTATION
STRANGENESS