Results 81 to 90 of about 225,577 (311)

Scattering of conformal higher spin fields

Journal of High Energy Physics, 2018
We develop a formalism for describing the most general notion of tree-level scattering amplitudes in 4d conformal higher spin theory. As conformal higher spin fields obey higher-derivative equations of motion, there are many distinct on-shell external ...
Tim Adamo, Simon Nakach, Arkady A. Tseytlin   +2 more
doaj   +1 more source

Gravitational shock waves and scattering amplitudes

Journal of High Energy Physics, 2020
We study gravitational shock waves using scattering amplitude techniques. After first reviewing the derivation in General Relativity as an ultrarelativistic boost of a Schwarzschild solution, we provide an alternative derivation by exploiting a novel ...
Andrea Cristofoli
doaj   +1 more source

Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings

, 2003
We examine flavor SU(3) breaking effects on meson-baryon scattering amplitudes in the chiral unitary model. It turns out that the SU(3) breaking, which appears in the leading quark mass term in the chiral expansion, can not explain the channel dependence
A. Hosaka, A. Ramos, B. Krippa, C. Garcia-Recio, D. Jido, D. Jido, D. Jido, D.N. Tovee, E. Oset, E. Oset, H. Göing, J. Ciborowski, J.A. Oller, J.K. Kim, M. Csejthey-Barth, M. Gell-Mann, M. Sakitt, M.F.M. Lutz, N. Kaiser, R.J. Hemingway, R.J. Nowak, R.O. Bangerter, S. I. Nam, T. Hyodo, T. Inoue, T.S. Mast, T.S. Mast, W. Kittel   +27 more
core   +1 more source

Scattering amplitudes in Lifshitz spacetime [PDF]

Classical and Quantum Gravity, 2014
We consider the calculation of scattering amplitudes in field theories dual to Lifshitz spacetimes. These amplitudes provide an interesting probe of the IR structure of the field theory; our aim is to use them to explore the observable consequences of the singularity in the spacetime.
Andrade, T., Ross, Simon F., Lei, Y.
openaire   +3 more sources

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

The Grassmannian for celestial superamplitudes

Journal of High Energy Physics, 2021
Recently, scattering amplitudes in four-dimensional Minkowski spacetime have been interpreted as conformal correlation functions on the two-dimensional celestial sphere, the so-called celestial amplitudes.
Livia Ferro, Robert Moerman
doaj   +1 more source

The Four Dimensional Helicity Scheme Beyond One Loop

, 2012
I describe a procedure by which one can transform scattering amplitudes computed in the four dimensional helicity scheme into properly renormalized amplitudes in the 't Hooft-Veltman scheme.
J. Collins, William B. Kilgore
core   +1 more source

Scattering amplitudes and toric geometry [PDF]

Journal of High Energy Physics, 2013
AbstractIn this paper we provide a first attempt towards a toric geometric interpretation of scattering amplitudes. In recent investigations it has indeed been proposed that the all-loop integrand of planar$ \mathcal{N} $= 4 SYM can be represented in terms of well defined finite objects called on-shell diagrams drawn on disks.
Amariti, Antonio, Forcella, Davide
openaire   +4 more sources

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

Advanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler, Hesam Makki, Dorothee Silbernagl, Mathias Dimde, Kai Ludwig, Bengt E. Tegner, Christopher Greve, Konstantin Rausch, Eva M. Herzig, Anna Köhler, Alex J. Plajer   +10 more
wiley   +1 more source

Gravitational Regge bounds

SciPost Physics
We review the basic assumptions and spell out the detailed arguments that lead to the bound on the Regge growth of gravitational scattering amplitudes.
Kelian Häring, Alexander Zhiboedov
doaj   +1 more source