Locality of the Strange Sea in the Nucleon

Details Locality of the Strange Sea in the Nucleon Locality of the Strange Sea in the Nucleon

1995-07-31

arxiv.org/abs/hep-ph/9507465v2

Phys.Lett. B362 (1995) 182-188

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages in REVTeX (more accurate data), with 4 PostScript figs

Scientific paper

We introduce the concept of ``locality" for the strange sea in the nucleon, which measures proximity of the strange and anti-strange quarks in the momentum and coordinate spaces. The CCFR data for the strange and anti-strange distributions imply a ``local" strange sea in the momentum space, which is unexpected in QCD and is at variance with the simple meson-cloud model where the strangeness is generated from the virtual transition of the nucleon to a hyperon plus a kaon. We present a simple model to interpret the CCFR data and to correlate momentum and coordinate space locality, yielding an upper bound of 0.005 fm$^2$ on the strange radius. We also discuss significances of locality for other charge-conjugation-odd observables.

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