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Ideas of four-fermion operators in hadron physics
(2013-04-22)
Four-fermion operators have been utilized in the past to link the quarkexchange processes in the interaction of hadrons with the effective mesonexchange amplitudes. In this paper, we apply the similar idea of Fierz ...
Ideas of four-fermion operators in hadron physics
(2013-04-22)
Four-fermion operators have been utilized in the past to link the quarkexchange processes in the interaction of hadrons with the effective mesonexchange amplitudes. In this paper, we apply the similar idea of Fierz ...
The International Physical Activity Questionnaire-long form overestimates self-reported physical activity of Brazilian adults
(W B Saunders Co Ltd, 2012-11-01)
Objective: To explore issues associated with measuring physical activity using the International Physical Activity Questionnaire (IPAQ)-long form in adults living in a mid-sized Brazilian city.Methods: A stratified random ...
The International Physical Activity Questionnaire-long form overestimates self-reported physical activity of Brazilian adults
(W B Saunders Co Ltd, 2012-11-01)
Objective: To explore issues associated with measuring physical activity using the International Physical Activity Questionnaire (IPAQ)-long form in adults living in a mid-sized Brazilian city.Methods: A stratified random ...
Scattering Amplitudes Interpolating Between Instant Form and Front Form of Relativistic Dynamics
(Springer, 2014-06-01)
Among the three forms of relativistic Hamiltonian dynamics proposed by Dirac in 1949, the front form has the largest number of kinematic generators. This distinction provides useful consequences in the analysis of physical ...
Relativistic quark spin coupling effects in the nucleon electromagnetic form factors
(2000-04-06)
We investigate the effect of different forms of relativistic spin coupling of constituent quarks in the nucleon electromagnetic form factors. The four-dimensional integrations in the two-loop Feynman diagram are reduced ...
Relativistic quark spin coupling effects in the nucleon electromagnetic form factors
(2000-04-06)
We investigate the effect of different forms of relativistic spin coupling of constituent quarks in the nucleon electromagnetic form factors. The four-dimensional integrations in the two-loop Feynman diagram are reduced ...