Proton and neutron electromagnetic form factors from lattice QCD
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DOI: 10.1103/physrevd.100.014509
Abstract: The electromagnetic form factors of the proton and the neutron are computed within lattice QCD using simulations with quarks masses fixed to their physical values. Both connected and disconnected contributions are computed. We analyze two… read more here.
Keywords: proton neutron; lattice qcd; electromagnetic form; form factors ... See more keywords
Nucleon electromagnetic form factors with a nonlocal chiral effective Lagrangian
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
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
Two-photon exchange effects in e+e−→π+π− and timelike pion electromagnetic form factor
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DOI: 10.1103/physrevd.98.054003
Abstract: The two-photon-exchange (TPE) effects in the process $e^+e^- \rightarrow \pi^+\pi^-$ at large momentum transfer are discussed within the perturbative QCD (pQCD). The contributions from the twist-2 and twist-3 distribution amplitudes (DAs) of pion are considered… read more here.
Keywords: electromagnetic form; two photon; form factor; exchange ... See more keywords
Complete Measurement of the Λ Electromagnetic Form Factors.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.122003
Abstract: The exclusive process e^{+}e^{-}→ΛΛ[over ¯], with Λ→pπ^{-} and Λ[over ¯]→p[over ¯]π^{+}, has been studied at sqrt[s]=2.396 GeV for measurement of the timelike Λ electric and magnetic form factors, G_{E} and G_{M}. A data sample, corresponding to… read more here.
Keywords: form; electromagnetic form; form factors; complete measurement ... See more keywords
Electromagnetic Form Factor of Doubly-Strange Hyperon
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DOI: 10.3390/sym14010065
Abstract: The standard model of particle physics is a well-tested theoretical framework, but there are still some issues that deserve experimental and theoretical investigation. The Ξ resonances with strangeness S=−2, the so-called doubly-strange hyperon, can provide… read more here.
Keywords: electromagnetic form; strange hyperon; form factor; doubly strange ... See more keywords
Electromagnetic Form Factors of Σ Hyperons
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DOI: 10.3390/sym14010069
Abstract: Electromagnetic form factors (EMFFs) are fundamental observable of baryons that intimately related to their internal structure and dynamics, where the EMFFs of hyperons provide valuable insight into the behavior of the strangeness. The EMFFs of… read more here.
Keywords: emffs hyperons; electromagnetic form; form factors; factors hyperons ... See more keywords