Chiral effective field theories for electroweak reactions on deuterium
Daniel Phillips
オハイオ大学、中部大学
日時：2006年07月03日（月） 16:15-18:30
場所：理学総合棟７階７４３号室
I will first discuss the general manner in which computations ofelectroweakreactions on deuterium are carried out. Such calculations require knowledgeofboth the NN potential that is used to generate the deuteron wave function,andthe operator which governs the interaction of the deuteron's constituentnucleons with the external probe. I will then introduce chiral perturbationtheory, and argue that this effective field theory provides a systematic andreliable technique by which both the NN potential and operators forelectroweakprocesses can be computed. I will display two examples of calculations ofthatcharacter that I have been involved in: elastic electron-deuteronscattering,and Compton scattering on deuterium. The results of these callculationsdemonstrate that effective field theories can be used to reliably computeoperators and wave functions for low-momentum-transfer reactions in lightnuclear systems.
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