Results 11 to 20 of about 294 (136)

Light composite scalar boson from a see-saw mechanism in two-scale TC models [PDF]

open access: yesPhysics Letters B, 2015
We consider the possibility of a light composite scalar boson arising from mass mixing between a relatively light and heavy scalar singlets in a see-saw mechanism expected to occur in two-scale Technicolor (TC) models.
A. Doff, A.A. Natale
doaj   +3 more sources

Fermion mass splitting in the technicolor coupled scenario

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We discuss fermion mass generation in unified models where QCD and technicolor (or any two strongly interacting theories) have their Schwinger–Dyson equations coupled.
A. Doff, A. A. Natale
doaj   +2 more sources

Partially composite Higgs models: phenomenology and RG analysis [PDF]

open access: yesJournal of High Energy Physics, 2018
We study the phenomenology of partially composite-Higgs models where electroweak symmetry breaking is dynamically induced, and the Higgs is a mixture of a composite and an elementary state.
Tommi Alanne   +5 more
doaj   +4 more sources

Relaxation of the composite Higgs little hierarchy

open access: yesJournal of High Energy Physics, 2017
We describe a composite Higgs scenario in which a cosmological relaxation mechanism naturally gives rise to a hierarchy between the weak scale and the scale of spontaneous global symmetry breaking.
Brian Batell   +2 more
doaj   +2 more sources

What is it like to be colour‐blind? A case study in experimental philosophy of experience

open access: yesMind &Language, Volume 37, Issue 5, Page 814-839, November 2022., 2022
What is the experience of someone who is “colour‐blind” like? This paper presents the results of a study that uses qualitative research methods to better understand the lived experience of colour blindness. Participants were asked to describe their experiences of a variety of coloured stimuli, both with and without EnChroma glasses—glasses which, the ...
Keith Allen   +3 more
wiley   +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

Phenomenology of unusual top partners in composite Higgs models

open access: yesJournal of High Energy Physics, 2022
We consider a particular composite Higgs model which contains SU(3) color octet top partners besides the usually considered triplet representations. Moreover, color singlet top partners are present as well which can in principle serve as dark matter ...
G. Cacciapaglia   +3 more
doaj   +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

Techni-composite Higgs models with symmetric and asymmetric dark matter candidates [PDF]

open access: yes, 2021
International audienceWe propose a novel class of composite models that feature both a technicolor and a composite Higgs vacuum limit, resulting in an asymmetric dark matter candidate.
Huang, Wei Chih   +7 more
core   +2 more sources

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

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