Quark Spin Properties at High x

Details Quark Spin Properties at High x Quark Spin Properties at High x

2003-10-30

arxiv.org/abs/hep-ph/0310347v3

Phys.Lett. B587 (2004) 211-215; Erratum-ibid. B599 (2004) 347-347

Physics

High Energy Physics

High Energy Physics - Phenomenology

The quark function \phi(123) satisfies the constraint \phi(123)+\phi(213)=\phi(132)+\phi(231), which is less restrictive than

Scientific paper

A general three quark bound state satisfying the Pauli principle, and conserving angular momentum and isospin, is used to investigate the spin structure of nucleons at high $x$. It is shown if {$F_{1n}/F_{1p}$$\to$1/4}, then both $A_{1p}$ and $A_{1n}$, as well as quark spin distribution $\Delta u/u$, will approach 1 as $x$$\to$1 in polarized deep inelastic scattering. The spin distribution $\Delta d/d$ does not approach 1, but is bound by the limits $-{1/3}\le\Delta d/d\le 0$ for any $x$.

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