Results 1 to 10 of about 7,196,011 (327)

Carroll theories from Lorentzian light-cone theories

open access: yesJournal of High Energy Physics
We derive Carrollian field theories via null reduction from Lorentzian light-cone actions in Minkowski spacetime. By suitably deforming the light-cone action, we reduce the Poincaré invariance to a Bargmann subgroup, from which both magnetic and electric
Sucheta Majumdar
doaj   +4 more sources

Cone angle of a disc-cone antenna: theory and practice

open access: yesТехнічна інженерія
When calculating the dimensions of a disc-cone antenna, an interesting point is the choice of the cone angle. The optimal value of this angle is usually 30 degrees. The argumentation in favor of this choice is practically not given.
V.P. Manoylov   +6 more
doaj   +3 more sources

Direct observation of the dead-cone effect in quantum chromodynamics [PDF]

open access: yesNature, 2021
In particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics (QCD)1 ...
S. D. A. J. G. M. N. Z. S. S. U. I. Z. A. M. S. N. D. Acharya Adamova Adler Adolfsson Aglieri Rinella Ag   +499 more
semanticscholar   +1 more source

Loss Cone Shielding [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
A star wandering close enough to a massive black hole (MBH) can be ripped apart by the tidal forces of the black hole. The advent of wide-field surveys at many wavelengths has quickly increased the number of tidal disruption events (TDEs) observed, and
O. Teboul, N. Stone, J. Ostriker
semanticscholar   +1 more source

Accessible fragments of generalized probabilistic theories, cone equivalence, and applications to witnessing nonclassicality [PDF]

open access: yesPhysical Review A, 2021
The formalism of generalized probabilistic theories (GPTs) was originally developed as a way to characterize the landscape of conceivable physical theories.
John H. Selby   +5 more
semanticscholar   +1 more source

Nilpotent Cone and Bivariant Theory

open access: yesResults in Mathematics, 2023
AbstractWe exhibit a new proof, relying on bivariant theory, that the nilpotent cone is rationally smooth. Our approach enables us to prove a slightly more general statement.
Di Gennaro, Vincenzo   +2 more
openaire   +5 more sources

Cone of Economy with the Chain of Balance―Historical Perspective and Proof of Concept

open access: yesSpine Surgery and Related Research, 2022
A bipedal erect posture with a horizontal gaze is a distinctly human characteristic. The standing mechanism was described by Jean Felix Dubousset in the early 1970s as the “cone of economy,” in which the axial skeleton is aligned in balance with the feet,
Kazuhiro Hasegawa, J. Dubousset
semanticscholar   +1 more source

Causality theory for closed cone structures with applications [PDF]

open access: yesReviews in Mathematical Physics, 2017
We develop causality theory for upper semi-continuous distributions of cones over manifolds generalizing results from mathematical relativity in two directions: non-round cones and non-regular differentiability assumptions.
E. Minguzzi
semanticscholar   +1 more source

Superradiance in string theory [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2021
We perform an extensive analysis of the statistics of axion masses and interactions in compactifications of type IIB string theory, and we show that black hole superradiance excludes some regions of Calabi-Yau moduli space. Regardless of the cosmological
V. Mehta   +5 more
semanticscholar   +1 more source

Light-cone superspace BPS theory [PDF]

open access: yesNuclear Physics B, 2011
The BPS bound is formulated in light-cone superspace for the N = 4 superYang-Mills theory. As a consequence of the superalgebra all momenta are shown to be expressed as a quadratic form in the relevant supertransformations, and these forms are used to derive the light-cone superspace BPS equations.
Institute for Fundamental Theory, Department of Physics, University of Florida, Gainesville, FL 32611, USA ( host institution )   +1 more
openaire   +4 more sources

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