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arXiv · 1511.06476

Nonperturbative contribution to the strange-antistrange asymmetry of the nucleon sea

Alfredo Vega·Ivan Schmidt·Thomas Gutsche·Valery E. Lyubovitskij
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Abstract

We give predictions for the nonperturbative (intrinsic) contribution to the $s(x) - \bar{s}(x)$ asymmetry of the nucleon sea. For this purpose we use different light-front wave functions inspired by the AdS/QCD formalism, together with a model of the nucleon in terms of meson-baryon fluctuations. The holographic wave functions for an arbitrary number of constituents, recently derived by us, give results quite close to known parametrizations that appear in the literature.

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Alfredo Vega, Ivan Schmidt, Thomas Gutsche, Valery E. Lyubovitskij. 2016-04-06. Nonperturbative contribution to the strange-antistrange asymmetry of the nucleon sea. https://doi.org/10.1103/physrevd.93.056001

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