Quark Contributions to the Proton Spin and Tensor Charge

Han-xin He

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arXiv · hep-ph/9712272

Quark Contributions to the Proton Spin and Tensor Charge

Han-xin He

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Abstract

I calculate the quark contributions to the axial and tensor charges and the spin structure of the proton. The result indicates that the valence current quark spins carry 1/3 of the proton spin, the total contribution of quark spins to the proton spin satisfies $ΔΣ= 1/3 + ΔΣ_{sea} \le 1/3$, and the quarks (their spin plus orbital contributions) contribute about one half of the proton spin at scale of 1 $GeV$. The valence current quark contributions to the proton tensor charge are also obtained.

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Han-xin He. 1997-12-05. Quark Contributions to the Proton Spin and Tensor Charge. https://arxiv.org/abs/hep-ph/9712272

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