Uncertainty Estimation and Anomaly Detection in Chiral Effective Field Theory Studies of Key Nuclear Electroweak Processes
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DOI: 10.1007/s00601-024-01929-x
Abstract: Chiral effective field theory (χ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\chi $$\end{document}EFT) is a powerful tool for studying electroweak processes in nuclei. I discuss χ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek}… read more here.
Keywords: electroweak processes; effective field; document; chiral effective ... See more keywords
Chiral effective theories with a light scalar at one loop
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DOI: 10.1016/j.nuclphysb.2020.114938
Abstract: Abstract There are indications that some theories with spontaneous symmetry breaking also feature a light scalar in their spectrum, with a mass comparable to the one of the Goldstone modes. In this paper, we perform… read more here.
Keywords: one loop; loop; effective theories; light scalar ... See more keywords
Resonant shattering flares as asteroseismic tests of chiral effective field theory
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DOI: 10.1103/physrevc.111.015809
Abstract: Chiral effective field theory (χEFT) has proved to be a powerful microscopic framework for predicting the properties of neutron-rich nuclear matter with quantified theoretical uncertainties up to about twice the nuclear saturation density. Tests of… read more here.
Keywords: field theory; effective field; resonant shattering; chiral effective ... See more keywords
Implications of Efimov physics for the description of three and four nucleons in chiral effective field theory
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DOI: 10.1103/physrevc.95.024001
Abstract: In chiral effective field theory the leading order (LO) nucleon-nucleon potential includes two contact terms, in the two spin channels $S=0,1$, and the one-pion-exchange potential. When the pion degrees of freedom are integrated out, as… read more here.
Keywords: effective field; theory; physics; field theory ... See more keywords
Nucleon-to-$\Delta$ transition form factors in chiral effective field theory using the complex-mass scheme
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DOI: 10.1103/physrevc.97.035205
Abstract: We calculate the form factors of the electromagnetic nucleon-to-$\Delta$-resonance transition to third chiral order in manifestly Lorentz-invariant chiral effective field theory. For the purpose of generating a systematic power counting, the complex-mass scheme is applied… read more here.
Keywords: effective field; nucleon delta; form factors; field theory ... See more keywords
Large-cutoff behavior of local chiral effective field theory interactions
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DOI: 10.1103/physrevc.98.024001
Abstract: Interactions from chiral effective field theory have been successfully employed in a broad range of \textit{ab initio} calculations of nuclei and nuclear matter, but it has been observed that most results of few- and many-body… read more here.
Keywords: effective field; behavior local; local chiral; field theory ... See more keywords
Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory
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DOI: 10.1103/physrevd.101.034018
Abstract: We calculate the effective potentials of the ΞcD¯(*), Ξc′D¯(*), and Ξc*D¯(*) system s with the chiral effective field theory up to the next-to-leading order. We simultaneously consider the short-, intermediate-, and long-range interactions. With the… read more here.
Keywords: chiral effective; effective field; strange hidden; field theory ... See more keywords
Strange quark helicity in the proton from chiral effective theory
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DOI: 10.1103/physrevd.102.116020
Abstract: We compute the helicity-dependent strange quark distribution in the proton in the framework of chiral effective theory. Starting from the most general chiral SU(3) Lagrangian that respects Lorentz and gauge invariance, we derive the complete… read more here.
Keywords: strange quark; effective theory; quark; chiral effective ... See more keywords
Chiral effective Lagrangian for doubly charmed baryons up to O(q4)
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DOI: 10.1103/physrevd.103.034006
Abstract: The chiral effective meson-baryon Lagrangian for the description of interactions between the doubly charmed baryons and Goldstone bosons is constructed up to the order of ${q}^{4}$. The numbers of linearly independent invariant monomials of $\mathcal{O}({q}^{2})$,… read more here.
Keywords: doubly charmed; lagrangian doubly; charmed baryons; chiral effective ... See more keywords
Nucleon electromagnetic form factors with a nonlocal chiral effective Lagrangian
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DOI: 10.1103/physrevd.97.036007
Abstract: The relativistic version of finite-range-regularisation is proposed. The covariant regulator is generated from the nonlocal Lagrangian. This nonlocal interaction is gauge invariant and is applied to study the nucleon electromagnetic form factors at momentum transfer… read more here.
Keywords: effective lagrangian; electromagnetic form; form factors; form ... See more keywords
B¯(*)B¯(*) interactions in chiral effective field theory
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DOI: 10.1103/physrevd.99.036007
Abstract: In this work, the intermeson interactions of double-beauty $\bar{B}\bar{B}$, $\bar{B}\bar{B}^\ast$, and $\bar{B}^\ast\bar{B}^\ast$ systems have been studied with heavy meson chiral effective field theory. The effective potentials are calculated with Weinberg's scheme up to one-loop level.… read more here.
Keywords: bar; chiral effective; bar ast; bar bar ... See more keywords