Results 11 to 20 of about 8,900 (289)
Evolution of genuine states to molecular ones: The Tcc(3875) case
Physics Letters B, 2023 We address the issue of the compositeness of hadronic states and demonstrate that starting with a genuine state of nonmolecular nature, but which couples to some meson-meson component to be observable in that channel, if that state is blamed for a bound ...
L.R. Dai, J. Song, E. Oset
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Methods on compositeness and related aspects [PDF]
EPJ Web of Conferences, 2022 In many physical applications, bound states and/or resonances are observed, which raises the question whether these states are elementary or composite.
Oller José Antonio
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Electroweak precision tests of composite Higgs models
Journal of High Energy Physics, 2023 We study constraints on Composite Higgs models with fermion partial compositeness from electroweak precision measurements, including the 2022 W-boson mass result from the CDF collaboration.
Mads T. Frandsen, Martin Rosenlyst
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Erkenntnis, 2022 AbstractThe thesis of Weak Unrestricted Composition says that every pair of objects has a fusion. This thesis has been argued by Contessa (Analysis 72(3):455–457, 2012) and Smith (Erkenntnis 84(1):41–55, 2019) to be compatible with the world being junky and hence to evade an argument against the necessity of Strong Unrestricted Composition proposed by ...
Lisa Vogt, Jonas Werner
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European Physical Journal C: Particles and Fields, 2023 We present a lattice study of the SU(4) gauge theory with two Dirac fermions in the fundamental and two in the two-index antisymmetric representation, a model close to a theory of partial compositeness proposed by G. Ferretti.
Luigi Del Debbio +3 more
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Symmetry, 2022 Nearly 60 years ago, Weinberg suggested a criterion for particle “compositeness”, which has acquired a new life with the discovery of new, exotic hadrons. His idea resonates with model-based intuition. I discuss the role it plays in the context of another of Weinberg’s creations, the model-independent framework of effective field theories.
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Journal of Chemistry, 2013 Composite nanoparticles are advanced materials having recently gained increasing attention due to their scientific and technological importance.They find awide variety of applications such as catalysts with huge activity and specificity,metal semiconductor junctions, optical sensors, and modifiers of polymeric films for packaging.
Pietro Calandra +4 more
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Real and complex fundamental partial compositeness
Journal of High Energy Physics, 2020 We complete the analysis of the effective field theory at the electroweak scale for minimal models of fundamental partial compositeness. Specifically, we consider fermions in the complex and real representation of the gauge group underlying the composite
Alessandro Agugliaro, Francesco Sannino
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Loop-generated neutrino masses in composite Higgs models
Journal of High Energy Physics, 2021 We present a composite scotogenic model for neutrino masses, which are generated via loops of ℤ2-odd composite scalars. We consider three different approaches to the couplings of the neutrinos (including three right-handed singlets) and the composite ...
Giacomo Cacciapaglia, Martin Rosenlyst
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Testing the mechanism of lepton compositeness
SciPost Physics, 2021 Strict gauge invariance requires that physical left-handed leptons are actually bound states of the elementary left-handed lepton doublet and the Higgs field within the standard model. That they nonetheless behave almost like pure elementary particles
Vincenzo Afferrante, Axel Maas, René Sondenheimer, Pascal Törek
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