Nucleon form factors in QCD
نویسندگان
چکیده
منابع مشابه
Nucleon electromagnetic form factors from lattice QCD
It is imperative that lattice QCD serve to develop our understanding of hadron structure and, where possible, to guide the interpretation of experimental data. There is now a great deal of effort directed at the calculation of the electroweak form factors of the nucleon, where for example, measurements at Jefferson Laboratory have recently revealed surprising behaviour in the ratio GE/GM. While...
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The isovector Nucleon electromagnetic form factors GE(q ) and GM(q ) are evaluated in Lattice QCD using Wilson fermions. A lattice of spatial extent 3 fm is used in the quenched theory allowing the extraction of the form factors for momentum transfer squared between 0.1 and 2 GeV for lowest pion mass of about 400 MeV. The calculation is also performed using two degenerate dynamical flavors of W...
متن کاملElectromagnetic nucleon form factors from QCD sum rules
The electromagnetic form factors of the nucleon, in the space-like region, are determined from three-point function Finite Energy QCD Sum Rules. The QCD calculation is performed to leading order in perturbation theory in the chiral limit, and to leading order in the non-perturbative power corrections. The results for the Dirac form factor, F1(q 2), are in very good agreement with data for both ...
متن کاملThe nucleon electromagnetic form factors from Lattice QCD
C. Alexandrou , G. Koutsou a J. W. Negele b and A. Tsapalis c a Department of Physics, University of Cyprus, CY-1678 Nicosia, Cyprus b Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, U.S.A. c Institute for Accelerating Systems and Applications, University of Athens, Athens,Greece. (D...
متن کاملNucleon Form Factors and Structure Functions from Lattice Qcd
In this talk we highlight recent lattice calculations of the nucleon form factors and structure functions.
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2006
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.73.094019