Nucleon structure from mixed action calculations using 2 + 1 flavors of asqtad sea and domain wall valence fermions

We present high statistics results for the structure of the nucleon from a mixed-action calculation using 2+1 flavors of asqtad sea and domain wall valence fermions. We perform extrapolations of our data based on different chiral effective field theory schemes and compare our results with available...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2010-11, Vol.82 (9), Article 094502
Main Authors: Bratt, J. D., Edwards, R. G., Engelhardt, M., Hägler, Ph, Lin, H. W., Lin, M. F., Meyer, H. B., Musch, B., Negele, J. W., Orginos, K., Pochinsky, A. V., Procura, M., Richards, D. G., Schroers, W., Syritsyn, S. N.
Format: Article
Language:English
Subjects:
FERMIONS
FORM FACTORS
NUCLEONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SPIN
STATISTICS
VALENCE
VECTORS
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Summary:We present high statistics results for the structure of the nucleon from a mixed-action calculation using 2+1 flavors of asqtad sea and domain wall valence fermions. We perform extrapolations of our data based on different chiral effective field theory schemes and compare our results with available information from phenomenology. We discuss vector and axial form factors of the nucleon, moments of generalized parton distributions, including moments of forward parton distributions, and implications for the decomposition of the nucleon spin.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.82.094502