The "Folk Theorem" on Effective Field Theory: How Does It Fare in Nuclear Physics?

Abstract : This is a brief history of what I consider as very important, some of which truly seminal, contributions made by young Korean nuclear theorists, mostly graduate students working on PhD thesis in 1990's and early 2000's, to nuclear effective field theory, nowadays heralded as the first-principle approach to nuclear physics. The theoretical framework employed is an effective field theory anchored on a scale-invariant hidden local symmetric Lagrangian constructed along the line of Weinberg's "Folk Theorem" on effective field theory. The problems addressed are the high-precision calculations on the thermal $np$ capture, the solar $pp$ fusion process, the solar $hep$ process -- John Bahcall's challenge to nuclear theorists -- and the quenching of $g_A$ in giant Gamow-Teller resonances and the whopping enhancement of first-forbidden beta transitions in astrophysical processes. Extending adventurously the strategy to a wild uncharted domain in which a systematic implementation of the "theorem" is far from obvious, the same effective Lagrangian is applied to the structure of compact stars. A surprising result on the properties of massive stars, totally different from what has been obtained up to day in the literature, is predicted, such as the precocious onset of conformal sound velocity together with the possible emergence of hidden symmetries such as scale symmetry and hidden local symmetry.
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Pré-publication, Document de travail
t17/145. Invited paper published in JKPS(Journal of the Korean Physical Society). 2017
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Soumis le : mercredi 13 septembre 2017 - 10:37:38
Dernière modification le : vendredi 15 septembre 2017 - 01:08:27

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  • HAL Id : cea-01586708, version 1
  • ARXIV : 1707.04857

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Mannque Rho. The "Folk Theorem" on Effective Field Theory: How Does It Fare in Nuclear Physics?. t17/145. Invited paper published in JKPS(Journal of the Korean Physical Society). 2017. 〈cea-01586708〉

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