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Nonperturbative contribution to the strange-antistrange asymmetry of the nucleon sea
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| DOI | 10.1103/PHYSREVD.93.056001 | ||||
| Año | 2016 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
We give predictions for the nonperturbative (intrinsic) contribution to the s(x) - (s) over bar (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.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | VEGA-LOPEZ, ALFREDO | Hombre |
Universidad de Valparaíso - Chile
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| 2 | SCHMIDT-ANDRADE, IVAN | Hombre |
Universidad Técnica Federico Santa María - Chile
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| 3 | Gutsche, Thomas | Hombre |
UNIV TUBINGEN - Alemania
Universität Tübingen - Alemania Eberhard Karls Universität Tübingen - Alemania |
| 4 | Lyubovitskij, V. | Hombre |
UNIV TUBINGEN - Alemania
Tomsk State Univ - Rusia Tomsk Polytech Univ - Rusia Universität Tübingen - Alemania Tomsk State University - Rusia Tomsk Polytechnic University - Rusia Eberhard Karls Universität Tübingen - Alemania |
| Fuente |
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| CONICYT (Chile) |
| FONDECYT (Chile) |
| Tomsk State University Competitiveness Improvement Program |
| Russian Federation program "Nauka" |
| German Bundesministerium fur Bildung und Forschung (BMBF) |
| Agradecimiento |
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| The authors thank Stan Brodsky and Guy de Teramond for useful discussions. This work was supported by the German Bundesministerium fur Bildung und Forschung (BMBF) under Project No. 05P2015-ALICE at High Rate (BMBF-FSP202):"Jet- and fragmentation processes at ALICE and the parton structure of nuclei and structure of heavy hadrons," Tomsk State University Competitiveness Improvement Program and the Russian Federation program "Nauka" (Contract No. 0.1526.2015, 3854), by FONDECYT (Chile) under Grants No. 1100287 and No. 1141280 and by CONICYT (Chile) Research Project No. 80140097, and under Grant No. 7912010025. V. E. L. would like to thank the Departamento de Fisica y Centro Cientifico Tecnologico de Valparaiso (CCTVal), Universidad Tecnica Federico Santa Maria, Valparaiso, Chile, and Instituto de Fisica y Astronomia, Universidad de Valparaiso, Chile, for warm hospitality. |
