Results 11 to 20 of about 269,496 (286)

Continuum naturalness

Journal of High Energy Physics, 2019
We present a novel class of composite Higgs models in which the top and gauge partners responsible for cutting off the Higgs quadratic divergences form a continuum.
Csaba Csáki, Gabriel Lee, Seung J. Lee, Salvator Lombardo, Ofri Telem   +4 more
doaj   +1 more source

Clockwork neutrinos

Journal of High Energy Physics, 2019
Clockwork (CW) mechanism can explain the smallness of neutrino masses without introducing unnaturally small input parameters. In this paper we study the simplest CW neutrino model, the “uniform” clockwork, as well as a broader class of “generalized ...
Sungwoo Hong, Gowri Kurup, Maxim Perelstein   +2 more
doaj   +1 more source

CASCADE3 A Monte Carlo event generator based on TMDs

European Physical Journal C: Particles and Fields, 2021
The Cascade3 Monte Carlo event generator based on Transverse Momentum Dependent (TMD) parton densities is described. Hard processes which are generated in collinear factorization with LO multileg or NLO parton level generators are extended by adding ...
S. Baranov, A. Bermudez Martinez, L. I. Estevez Banos, F. Guzman, F. Hautmann, H. Jung, A. Lelek, J. Lidrych, A. Lipatov, M. Malyshev, M. Mendizabal, S. Taheri Monfared, A. M. van Kampen, Q. Wang, H. Yang   +14 more
doaj   +1 more source

Forbidden conformal dark matter at a GeV

Journal of High Energy Physics, 2023
We introduce a model of dark matter (DM) where the DM is a composite of a spontaneously broken conformal field theory. The DM is a thermal relic with its abundance determined by the freeze-out of annihilations to dilatons, the Goldstone boson of broken ...
Steven Ferrante, Ameen Ismail, Seung J. Lee, Yunha Lee   +3 more
doaj   +1 more source

An example of a uniformly accelerated particle detector with non-Unruh response [PDF]

, 2002
We propose a scalar background in Minkowski spacetime imparting constant proper acceleration to a classical particle. In contrast to the case of a constant electric field the proposed scalar potential does not create particle-antiparticle pairs ...
A.M. Fedotov, Belinskii, Belinskii, Casher, Davies, Fedotov, Fulling, Gabriel, Kay, Landau, N.B. Narozhny, Narozhny, Narozhny, Nikishov, Parentani, Rosu, Streater, Takagi, Unruh, V.A. Belinski, V.D. Mur, Wald   +21 more
core   +2 more sources

Lorentzian Goldstone modes shared among photons and gravitons

European Physical Journal C: Particles and Fields, 2018
It has long been known that photons and gravitons may appear as vector and tensor Goldstone modes caused by spontaneous Lorentz invariance violation (SLIV). Usually this approach is considered for photons and gravitons separately. We develop the emergent
J. L. Chkareuli, J. Jejelava, Z. Kepuladze   +2 more
doaj   +1 more source

Nontrivial Isometric Embeddings for Flat Spaces

Universe, 2021
Nontrivial isometric embeddings for flat metrics (i.e., those which are not just planes in the ambient space) can serve as useful tools in the description of gravity in the embedding gravity approach.
Sergey Paston, Taisiia Zaitseva
doaj   +1 more source

Formation of Conserved Charge at the de Sitter Space

Particles, 2020
The article considers a new mechanism of charge accumulation in the early Universe in theories with compact extra dimensions. The relaxation processes in the extra space metric that take place during its formation lead to the establishment of symmetrical
Valery V. Nikulin, Polina M. Petriakova, Sergey G. Rubin   +2 more
doaj   +1 more source

A new method for the measurement of the Michel parameters that describe the daughter muon polarization in the τ − → μ − ν ¯ $$ \overline{\nu} $$ μ ν τ decay

Journal of High Energy Physics, 2022
This paper provides a detailed description of the method for the first direct measurement of all Michel parameters in the τ − → μ − ν ¯ $$ \overline{\nu} $$ μ ν τ decay related to the polarization of the daughter muon.
D. Bodrov, P. Pakhlov
doaj   +1 more source

Weak Field Limit for Embedding Gravity

Universe, 2022
We study a perturbation theory for embedding gravity equations in a background for which corrections to the embedding function are linear with respect to corrections to the flat metric.
Stanislav Kuptsov, Mikhail Ioffe, Sergey Manida, Sergey Paston   +3 more
doaj   +1 more source