Tensor form factors of nucleon in QCD

We extract the isovector tensor nucleon form factors, which play an important role in understanding the transverse spin structure of the nucleon when related to the quark helicity-flip generalized parton distributions via their first moments. We employ the light-cone QCD sum rules to leading order i...

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Bibliographic Details
Published inarXiv.org
Main Authors Erkol, Guray, Altug Ozpineci
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 07.10.2011
Subjects
Form factors
Helicity
Mathematical analysis
Momentum transfer
Physics - High Energy Physics - Phenomenology
Spin structure
Sum rules
Tensors
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Summary:We extract the isovector tensor nucleon form factors, which play an important role in understanding the transverse spin structure of the nucleon when related to the quark helicity-flip generalized parton distributions via their first moments. We employ the light-cone QCD sum rules to leading order in QCD and include distribution amplitudes up to twist 6 in order to calculate the three tensor form factors \(H_T\), \(E_T\) and \(\tilde{H}_T\). Our results agree well with those from other approaches in the low and high momentum-transfer regions.
ISSN:2331-8422
DOI:10.48550/arxiv.1107.4584