Results 31 to 40 of about 41,561 (233)

Large Higgs quartic coupling and (A)DM from extended bosonic Technicolor

open access: yesPhysics Letters B, 2021
We propose novel bosonic Technicolor models augmented by an SU(2)R gauge group and scalar doublet. Dynamical breaking of SU(2)R induced by technifermion condensation triggers SU(2)L breaking via a portal coupling. The scale of the new strong interactions
Mads Toudal Frandsen, Wei-Chih Huang
doaj   +1 more source

High‐dimensional principal component analysis with heterogeneous missingness

open access: yesJournal of the Royal Statistical Society: Series B (Statistical Methodology), Volume 84, Issue 5, Page 2000-2031, November 2022., 2022
Abstract We study the problem of high‐dimensional Principal Component Analysis (PCA) with missing observations. In a simple, homogeneous observation model, we show that an existing observed‐proportion weighted (OPW) estimator of the leading principal components can (nearly) attain the minimax optimal rate of convergence, which exhibits an interesting ...
Ziwei Zhu   +2 more
wiley   +1 more source

Absence in technicolour: protesting enforced disappearances in northern Sri Lanka

open access: yesJournal of the Royal Anthropological Institute, Volume 28, Issue S1, Page 118-134, April 2022., 2022
Abstract This essay examines the political uses of photography in the protests of the Tamil families of the disappeared in northern Sri Lanka. Enforced disappearances have long featured as an instrument of state terror. Their lingering effects have been noted as a significant challenge to transitional justice processes in the aftermath of the island's ...
Vindhya Buthpitiya
wiley   +1 more source

Genuine Dilatons in Gauge Theories

open access: yesUniverse, 2020
A genuine dilaton σ allows scales to exist even in the limit of exact conformal invariance. In gauge theories, these may occur at an infrared fixed point (IRFP) α IR through dimensional transmutation.
R. J. Crewther
doaj   +1 more source

Any room left for technicolor? Holographic studies of NJL assisted technicolor [PDF]

open access: yesPhysical Review D, 2019
We use a holographic description of technicolor dynamics to study gauge theories that only break chiral symmetry when aided by a strong four fermion interaction.
A. Belyaev   +3 more
semanticscholar   +1 more source

String (Gravi)photons, “Dark Brane Photons”, Holography and the Hypercharge Portal

open access: yesFortschritte der Physik, Volume 69, Issue 6, June 2021., 2021
Abstract The mixing of graviphotons and dark brane photons to the Standard Model hypercharge is analyzed in full generality, in weakly‐coupled string theory. Both the direct mixing as well as effective terms that provide mixing after inclusion of SM corrections are estimated to lowest order.
P. Anastasopoulos   +3 more
wiley   +1 more source

Technicolor models with coupled systems of Schwinger-Dyson equations [PDF]

open access: yesPhysical Review D, 2019
When Technicolor (TC), QCD, Extended Technicolor (ETC) and other interactions become coupled through their different Schwinger-Dyson equations, the solution of these equations are modified in comparison with the ones of the isolated equations. The change
A. Doff, A. Natale
semanticscholar   +1 more source

Naturalness of lepton non-universality and muon g-2

open access: yesPhysics Letters B, 2022
We show that the observed anomalies in the lepton sector can be explained in extensions of the Standard Model that are natural and, therefore, resolve the Higgs sector hierarchy problem.
Giacomo Cacciapaglia   +2 more
doaj   +1 more source

Any room left for technicolor? Dilepton searches at the LHC and beyond [PDF]

open access: yesPhysical Review D, 2018
Precision electroweak data, a light higgs and LHC searches for new spin one particles are all very constraining on technicolor models. We use a holographic model of walking techicolor (WTC) gauge dynamics, tuned to produce a light higgs and low S ...
A. Belyaev, A. Coupe, N. Evans, M. Scott
semanticscholar   +1 more source

Rational Risk-Benefit Decision-Making in the Setting of Military Mefloquine Policy. [PDF]

open access: yesJ Parasitol Res, 2015
Mefloquine is an antimalarial drug that has been commonly used in military settings since its development by the US military in the late 1980s. Owing to the drug’s neuropsychiatric contraindications and its high rate of inducing neuropsychiatric symptoms, which are contraindications to the drug’s continued use, the routine prescribing of mefloquine in ...
Nevin RL.
europepmc   +2 more sources

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