Results 1 to 10 of about 236 (96)
Bilocal Field Theory for Composite Scalar Bosons [PDF]
EntropyWe give a bilocal field theory description of a composite scalar with an extended binding potential that reduces to the Nambu–Jona-Lasinio (NJL) model in the pointlike limit.
Christopher T. Hill
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Revealing timid pseudo-scalars with taus at the LHC [PDF]
European Physical Journal C: Particles and Fields, 2018 A light pseudo-scalar that is copiously produced at the LHC may still be allowed by present searches. While masses above 65 GeV are effectively covered by di-photon searches, the lower mass window can be tested by a new search for boosted di-tau ...
Giacomo Cacciapaglia +3 more
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Estimation of compositeness with correction terms [PDF]
EPJ Web of Conferences, 2022 The compositeness X is defined as the probability to observe the composite structure such as the hadronic molecule component in a bound state. One of the model-independent approaches to calculate X is the weak-binding relation.
Kinugawa Tomona, Hyodo Tetsuo
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Sp(4) gauge theories and beyond the standard model physics [PDF]
EPJ Web of Conferences, 2022 We review numerical results for models with gauge group Sp(2N), discussing the glueball spectrum in the large-N limit, the quenched meson spectrum of Sp(4) with Dirac fermions in the fundamental and in the antisymmetric representation and the Sp(4) gauge
Lucini Biagio +9 more
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Compositeness above the electroweak scale and a proposed test at LHCb [PDF]
EPJ Web of Conferences, 2022 I review attempts to construct models of partial compositeness from strongly coupled gauge theories. A few minimal assumptions allow one to isolate a small number of representative models.
Ferretti Gabriele
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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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Partial compositeness under precision scrutiny
Journal of High Energy Physics, 2022 We revisit the impact of top partial compositeness on electroweak precision observables in the misaligned vacuum basis. We identify a new source for S in the singlet mixing case, and for S-T in the bi-doublet mixing, stemming from misalignment in the ...
Haiying Cai, Giacomo Cacciapaglia
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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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