Articles with "chiral perturbation" as a keyword



Chiral perturbation on single benzene-based fluorophores: A structure/(chir)optical activity relationship study.

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Published in 2023 at "Chirality"

DOI: 10.1002/chir.23577

Abstract: In this paper, we describe the synthesis and the (chir)optical properties of a novel series of circularly polarized luminescent emitters. These molecules involve a compact single benzene-based donor-acceptor fluorophore composed of two cyclic alkylamines as… read more here.

Keywords: chir optical; chiral perturbation; single benzene; benzene based ... See more keywords

K± → π±a at next-to-leading order in chiral perturbation theory and updated bounds on ALP couplings

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep06(2024)029

Abstract: The weak decays K± → π±a offer a powerful probe of axion-like particles (ALPs). In this work, we provide a comprehensive analysis of these processes within chiral perturbation theory, extending existing calculations by including complete… read more here.

Keywords: next leading; chiral perturbation; alp couplings; order ... See more keywords

Pion photoproduction off nucleons in covariant chiral perturbation theory

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Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.100.094021

Abstract: Pion photoproduction off the nucleon close to threshold is studied in covariant baryon chiral perturbation theory at O($p^3$) in the extended-on-mass-shell scheme, with the explicit inclusion of the $\Delta(1232)$ resonance using the $\delta$ counting. The… read more here.

Keywords: chiral perturbation; theory; pion photoproduction; perturbation theory ... See more keywords

Pion-nucleon scattering to O(p3) in heavy baryon SU(3) chiral perturbation theory

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Published in 2020 at "Physical Review D"

DOI: 10.1103/physrevd.101.056021

Abstract: We calculate the complete T-matrices of pion-nucleon ($\pi N$) scattering to the third order in heavy baryon SU(3)-flavor chiral perturbation theory. The baryon mass in the chiral limit $M_0$ and the low-energy constants (LECs) are… read more here.

Keywords: heavy baryon; perturbation theory; nucleon scattering; chiral perturbation ... See more keywords

Molecular pentaquark magnetic moments in heavy pentaquark chiral perturbation theory

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Published in 2024 at "Physical Review D"

DOI: 10.1103/physrevd.109.114039

Abstract: We propose a new heavy pentaquark chiral perturbation theory for the recently observed hidden-charm pentaquark states by LHCb Collaboration. With the pentaquark chiral Lagrangians, we present a parameter-free calculation of the octet molecular pentaquark magnetic… read more here.

Keywords: chiral perturbation; pentaquark chiral; pentaquark; molecular pentaquark ... See more keywords
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Chiral perturbation theory and nucleon–pion-state contaminations in lattice QCD

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Published in 2017 at "International Journal of Modern Physics A"

DOI: 10.1142/s0217751x17300113

Abstract: Multiparticle states with additional pions are expected to be a non-negligible source of excited-state contamination in lattice simulations at the physical point. It is shown that baryon chiral per... read more here.

Keywords: state; perturbation theory; theory nucleon; nucleon pion ... See more keywords