Chiral effective field theory
WebFeb 22, 2024 · We study the $^{1}S_{0}$ proton pairing gap in $\ensuremath{\beta}$-equilibrated neutron star matter within the framework of chiral effective field theory. We focus on the role of three-body forces, which strongly modify the effective proton-proton spin-singlet interaction in dense matter. We find that three-body forces generically … WebOct 19, 2024 · As microscopic inputs we use chiral effective field theory nucleon-nucleon interactions at next-to-next-to-leading order combined with state-of-the-art nucleonic densities. With these potentials ...
Chiral effective field theory
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WebThe Nucleon-Nucleon Chiral Potential (I) • The nuclear force is a fundamental problem in nuclear physics • Many phenomenological descriptions available which are, however, not grounded in QCD. • Chiral Perturbation Theory (Weinberg counting): • Problem: NN interaction is non-perturbative • Weinberg’s solution: WebJun 27, 2024 · Hyperon–nucleon interaction within chiral effective field theory revisited. The $$\varLambda N$$ Λ N and $$\varSigma N$$ Σ N interactions are considered at …
WebApr 5, 2024 · We extract the proton charge radius from the elastic form factor (FF) data using a novel theoretical framework combining chiral effective field theory and dispersion analysis. Complex analyticity in the momentum transfer correlates the behavior of the spacelike FF at finite ${Q}^{2}$ with the derivative at ${Q}^{2}=0$. The FF calculated in … WebApr 3, 2024 · Chiral effective field theory ( EFT) provides a framework for obtaining internucleon interactions in a systematically improvable fashion from first principles, while also providing for the derivation of consistent electroweak current operators. In this work, we apply consistently derived interactions and currents towards calculating the ...
WebOct 5, 2024 · We develop the effective field theoretical descriptions of spin systems in the presence of symmetry-breaking effects: the magnetic field, single-ion anisotropy, and … WebAug 1, 2024 · How chiral symmetry figures in the nuclear effective field theory is now well understood in the guise of the chiral perturbation theory and has been fairly well-established in the modern development of ab initio approaches since the paper by Weinberg . Because the quark masses involved in nuclear dynamics are tiny compared with the …
WebSep 17, 2024 · In this article, we review the status of the calculation of nuclear currents within chiral effective field theory. After formal discussion of the unitary transformation technique and its application to nuclear currents we give all available expressions for vector, axial-vector currents. Vector and axial-vector currents are discussed up to order Q with …
WebApr 6, 2024 · Revisiting proton-proton fusion in chiral effectiv e field theory Bijaya Ac harya, 1, ∗ Laura Elisa Marcucci, 2, 3, † and Lucas Platter 4, 1, ‡ 1 Physics Division, Oak Ridge National Lab ... how many yards in 13 milesWebA nucleon-nucleon potential and consistent nuclear electromagnetic currents are derived in chiral effective field theory retaining pions and nucleons as explicit degrees of freedom. The calculation of the potential is carried out up to next-to-next-to leading order (N2LO), while the currents include up to N3LO corrections. how many yards in 1/3 mileWebAug 1, 2024 · How chiral symmetry figures in the nuclear effective field theory is now well understood in the guise of the chiral perturbation theory and has been fairly well … how many yards in 12 inchesWebJun 24, 2024 · We adopt the chiral effective field theory to calculate the Σ c N interaction to the next-to-leading order. We consider the contact interactions, one-pion-exchange contributions, two-pion-exchange diagrams, and renormalization effects of the vertices, masses, and wave functions. how many yards in 12 ftWebIn physics, an effective field theory is a type of approximation, or effective theory, for an underlying physical theory, such as a quantum field theory or a statistical mechanics … how many yards in 14 metersWebSep 22, 2012 · The second is based on chiral effective field theory, with density-dependent interactions derived from leading order chiral three-nucleon forces. We find … how many yards in 167 metersWebJun 1, 2011 · Chiral effective field theory and nuclear forces. We review how nuclear forces emerge from low-energy QCD via chiral effective field theory. The presentation … how many yards in 1 inch