Effective Lagrangian for Non-Abelian Two-Dimensional Topological Field Theory
Sign Up to like & getrecommendations! Published in 2022 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2022.115798
Abstract: We develop a systematic approach to obtain an effective Lagrangian for 2D non-Abelian topological BF theory. A general expression is presented in a diagrammatic representation containing solely scalar fields. Expressions for the SU(2) and SU(3)… read more here.
Keywords: field; theory; non abelian; lagrangian non ... See more keywords
Photoproduction in an effective Lagrangian approach
Sign Up to like & getrecommendations! Published in 2022 at "Chinese Physics C"
DOI: 10.1088/1674-1137/ac4e7c
Abstract: A gauge-invariant model is constructed for the reaction within a tree-level effective Lagrangian approach to understand the underlying production mechanisms and study the resonance contributions in this reaction. In addition to the t-channel K and… read more here.
Keywords: exchange; channel exchange; reaction; lagrangian approach ... 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
Theta dependence of the vacuum energy density in chiral effective Lagrangian models at finite temperature, above Tc
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.114009
Abstract: In this work, extending a previous study at zero temperature ($T=0$), we perform a systematic study of the modifications to the QCD vacuum energy density $\epsilon_{vac}$ in the finite-temperature case, above the chiral transition at… read more here.
Keywords: vacuum energy; energy density; lagrangian models; finite temperature ... See more keywords