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arXiv · 1503.07924

Role of gluons and the quark sea in the proton spin

Petr Zavada
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Abstract

The real, interacting elementary particle always consits of a 'bare' particle and a cloud of virtual particles mediating a self-interaction and/or the bond inside a composite object. In this letter we discuss the question of spin content of the virtual cloud in two different cases: electron and quark. Further, the quark spin is discussed in the context of proton spin, which is generated by the interplay of quarks and virtual gluons. We present a general constraint on the gluon contribution and make a comparison with the experimental data.

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Petr Zavada. 2015-03-26. Role of gluons and the quark sea in the proton spin. https://arxiv.org/abs/1503.07924

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