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Quantum-mechanical picture of peripheral chiral dynamics
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Jefferson Lab, Ctr Theory, Newport News, VA 23606 USA..
2015 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 92, no 2, 025206Article in journal (Refereed) Published
Abstract [en]

The nucleon's peripheral transverse charge and magnetization densities are computed in chiral effective field theory. The densities are represented in first-quantized form, as overlap integrals of chiral light-front wave functions describing the transition of the nucleon to soft pion-nucleon intermediate states. The orbital motion of the pion causes a large left-right asymmetry in a transversely polarized nucleon. The effect attests to the relativistic nature of chiral dynamics [pion momenta k = O(M-pi)] and could be observed in form factor measurements at low momentum transfer.

Place, publisher, year, edition, pages
2015. Vol. 92, no 2, 025206
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Physical Sciences
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URN: urn:nbn:se:uu:diva-262978DOI: 10.1103/PhysRevC.92.025206ISI: 000360285100006OAI: oai:DiVA.org:uu-262978DiVA: diva2:856182
Available from: 2015-09-23 Created: 2015-09-23 Last updated: 2017-12-01Bibliographically approved

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Granados, Carlos

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