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Watson, R.J.
Glasgow Univ. (United Kingdom)1997
Glasgow Univ. (United Kingdom)1997
AbstractAbstract
No abstract available
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Jun 1997; [vp.]; Available from British Library Document Supply Centre- DSC:DXN013854; Thesis (Ph.D.)
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Miscellaneous
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[en] The results of experiment PS170 performed at LEAR, at CERN, are presented here. The experiment has determined the values of the proton electromagnetic form factor for s ranging from threshold up to 4.2 GeV2. The precise measurements performed show the s dependence near threshold not in agreement with the models describing the results of the previous experiments. The authors have also measured the angular distribution of the e+e- pairs at the different energies. The results are compatible with the |GE| = |GM| hypothesis. 6 refs., 2 figs., 1 tab
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Translated from Yadernaya Fizika; 55: No. 6 (Jun 1992).
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Translation
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[en] The electric and magnetic form factors for the nucleon and the N-Δ transition are computed in the semiclassical approximation to the Skyrme model and compared with phenomenological dipole parametrizations. A model-independent relation between the magnetic form factors is obtained. The transverse electric transition form factor is identically zero in this approximation, while the longitudinal form factor is nonzero
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[en] A Comment on the Letter by J. C. Bernauer et al., Phys. Rev. Lett. 105, 242001 (2010). The authors of the Letter offer a Reply.
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(c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
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Krupa, D.; Dubnicka, S.; Masiar, P.; Kundrat, V.
The eighth conference of Czechoslovak physicists. Part I. Vol 11985
The eighth conference of Czechoslovak physicists. Part I. Vol 11985
AbstractAbstract
No abstract available
Original Title
Novy pristup pri globalnom popise experimentalnych udajov
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Source
Sebesta, J.; Povinec, P. (eds.); Jednota Ceskoslovenskych Matematiku a Fyziku, Prague; 132 p; 1985; p. 46-47; 8. conference of Czechoslovak physicists; Bratislava (Czechoslovakia); 26-30 Aug 1985; Short communication.
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Cochard, G.
Amiens Univ., 80 (France). Lab. de Physique Theorique des Particules1975
Amiens Univ., 80 (France). Lab. de Physique Theorique des Particules1975
AbstractAbstract
[en] The theory of the pion electromagnetic form factor (space-time extension of π mesons, electromagnetic mean squared radius, form factor and strong interactions) is presented and pion electroproduction (virtual photoproduction cross sections, models using dispersion relations, Kessler and Cochard graphic model) is studied. The relation between the pion electromagnetic form factor and electroproduction is then analyzed
[fr]
Apres avoir presente les elements de theorie du facteur de forme electromagnetique de pion (extension spatio-temporelle du meson π, rayon quadratique moyen electromagnetique, facteur de forme et interactions fortes), on a etudie l'electroproduction du pion (section efficace de photoproduction virtuelle, modeles utilisant les relations de dispersion, modele graphique de Kessler et Cochard). Enfin on a analyse les relations entre facteur de forme electromagnetique du pion et electroproductionOriginal Title
Electroproduction et facteur de forme electromagnetique du meson π
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1975; 20 p
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Report
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[en] On the example of the electromagnetic structure of the pion we illustrate the interplay between theory, experiment, and mathematics in phenomenology. (author)
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Dorobantu, I.A. (Institutul Central de Fizica, Bucharest (Romania)); p. 31-44; 1978; p. 31-44; ICEFIZ; Bucharest
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Book
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[en] The electromagnetic properties of a relativistic constituent-quark model of light nonstrange and strange mesons are investigated within the framework of light-front Hamiltonian dynamics. The authors demonstrate that the Poincare invariant quark model of the pion and kaon can give charge form factors in agreement with all available data. The relativistic features of the model are essential for the result. The radial confinement scale is much smaller than the charge radius due to the sizable effect from the spin-orbit coupling in the meson system
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Meeting of the American Physical Society; Indianapolis, IN (United States); 16-20 Mar 1992; CONF-920376--
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Zhang, Ya-Lan; Hua, Jun; Li, Dong-Sheng; Xiao, Zhen-Jun, E-mail: zylyw@hyit.edu.cn, E-mail: 546406604@qq.com, E-mail: xiaozhenjun@njnu.edu.cn2019
AbstractAbstract
[en] In this paper we calculate the next-to-leading-order (NLO) corrections to ρ-meson electromagnetic form factors by employing the factorization approach. We find that the NLO correction to is around 30% of the leading-order (LO) contribution in the region . The NLO correction to is close to 20% of the LO one in the region . The NLO radiative corrections to the electric, magnetic, and quadruple form factors are sizeable in magnitude and agree with those from other approaches.
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S0550321319302688; Available from http://dx.doi.org/10.1016/j.nuclphysb.2019.114782; © 2019 The Authors. Published by Elsevier B.V.; Country of input: International Atomic Energy Agency (IAEA)
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[en] The author will discuss recent progress in the determination and understanding of the electromagnetic form factors of the A=2,3,4 systems. New data and analyses have allowed one to determine the form factor to significantly larger momentum transfer. From a comparison of the separated isoscalar and isovector, charge and magnetic form factors one can better disentangle the contributions of one-body currents and mesonic degrees of freedom
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1993 joint meeting of the American Physical Society and the American Association of Physics Teachers; Washington, DC (United States); 12-15 Apr 1993; CONF-9304297--
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