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

Journal Article · Mon Nov 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.094502· OSTI ID:21503810

Bratt, J D; Negele, J W; Pochinsky, A V; Syritsyn, S N ^[1]; Edwards, R G; Richards, D G ^[2]; Engelhardt, M ^[3]; Haegler, Ph ^[4]; Lin, H W ^[2]; Lin, M F ^[1]; Meyer, H B ^[1]; Musch, B ^[4]; Orginos, K ^[5]; Procura, M ^[1]; Schroers, W ^[6]

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1. Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
2. Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606 (United States)
3. Department of Physics, New Mexico State University, Las Cruces, New Mexico 88003-0001 (United States)
4. Physik-Department der TU Muenchen, James-Franck-Strasse, D-85748 Garching (Germany)
5. Department of Physics, College of William and Mary, P.O. Box 8795, Williamsburg, Virginia 23187-8795 (United States)
6. Institute of Physics, Academia Sinica, Taipei 115, Taiwan (China)

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.

• OSTI ID: 21503810
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 9; Other Information: DOI: 10.1103/PhysRevD.82.094502; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
COMPARATIVE EVALUATIONS
DECOMPOSITION
DISTRIBUTION
EXTRAPOLATION
FIELD THEORIES
FLAVOR MODEL
FORM FACTORS
NUCLEONS
SPIN
ANGULAR MOMENTUM
BARYONS
CHEMICAL REACTIONS
COMPOSITE MODELS
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
HADRONS
MATHEMATICAL MODELS
MATHEMATICAL SOLUTIONS
NUMERICAL SOLUTION
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MODEL