Form Factors and Vector Mesons
نویسندگان
چکیده
منابع مشابه
Sudakov Form Factors in Leptoproduction of Vector Mesons
It is shown that Sudakov form factors for a colour dipole in a QCDinspired model of leptoproduction of vector mesons reduce the value of the cross section of the process by an order of magnitude. They suppress the large size quark-antiquark pairs and unequal sharing of energy among the components of the dipole. Some freedom in the choice of the model parameters is also discussed. The idea of in...
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In this work the dressed quark propagators and approximation schemes are guided by the Dyson-Schwinger equation (DSE) approach to non-perturbative QCD modeling of hadron physics. This covariant QCD phenomenology has proved to be quite efficient for low-mass mesons and their form factors. To expedite investigations we make use of a convenient parameterization of confining solutions of quark DSEs...
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The elastic charge form factors of the pion, kaon, Dand B-mesons are calculated within a relativistic constituent quark model formulated on the light-cone. Our parameter free predictions agree well with the available data. The results are approximately independent of the assumed form of the lightcone wave function, in particular they do not depend on the high momentum tail of the wave function ...
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Germany bSchool of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, UK cInstitut für Theoretische Physik, Universität Regensburg, 93040 Regensburg, Germany dSchool of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, UK eJohn von Neumann-Institut für Computing NIC / DESY, 15738 Zeuthen, Germany f Theoretical Physics Division, Department of Mathematical S...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1961
ISSN: 0031-899X
DOI: 10.1103/physrev.124.953