Report/Journal Article

PUBDB-2017-04950

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Strange quark asymmetry in the nucleon and the NuTeV anomaly

Alwall, J. ; Ingelman, G.

2004
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevD.70.111505  doi:10.3204/PUBDB-2017-04950

Report No.: hep-ph/0407364

Abstract: The NuTeV anomaly of a non-universal value of the fundamental parameter sin^2\theta_W in the electroweak theory has been interpreted as an indication for new physics beyond the Standard Model. However, the observed quantity depends on a possible asymmetry in the momentum distributions of strange quarks and antiquarks in the nucleon. This asymmetry occurs naturally in a phenomenologically successful physical model for such parton distributions, which reduces the NuTeV result to only about two standard deviations from the Standard Model.

Keyword(s): Weinberg angle ; quark: strangeness ; momentum spectrum: asymmetry ; neutrino nucleon: interaction ; numerical calculations: interpretation of experiments

Note: Theoretische Physik

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Contributing Institute(s):

1. DESY Retrocat (DESY(-2012))

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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