Results 31 to 40 of about 1,786,387 (265)

S-matrix singularities and CFT correlation functions

open access: yesJournal of High Energy Physics, 2017
In this note, we explore the correspondence between four-dimensional flat space S-matrix and two-dimensional CFT proposed by Pasterski et al. We demonstrate that the factorisation singularities of an n-point cubic diagram reproduces the AdS Witten ...
Carlos Cardona, Yu-tin Huang
doaj   +1 more source

Crossing Symmetric Spinning S-matrix Bootstrap: EFT bounds

open access: yesSciPost Physics, 2022
We develop crossing symmetric dispersion relations for describing 2-2 scattering of identical external particles carrying spin. This enables us to import techniques from Geometric Function Theory and study two sided bounds on low energy Wilson ...
Subham Dutta Chowdhury, Kausik Ghosh, Parthiv Haldar, Prashanth Raman, Aninda Sinha
doaj   +1 more source

Semiclassical S $$ \mathcal{S} $$ -matrix and black hole entropy in dilaton gravity

open access: yesJournal of High Energy Physics, 2020
We use complex semiclassical method to compute scattering amplitudes of a point particle in dilaton gravity with a boundary. This model has nonzero minimal black hole mass M cr . We find that at energies below M cr the particle trivially scatters off the
Maxim Fitkevich   +2 more
doaj   +1 more source

On the S-matrix conjecture

open access: yesLinear Algebra and its Applications, 2013
minor changes; to appear in Linear Algebra and its ...
openaire   +2 more sources

An S matrix analysis of the Z resonance [PDF]

open access: yesPhysics Letters B, 1993
Abstract The S matrix ansatz is a rigorously model independent approach to describe the cross-sections and asymetries in e+e− annihilation. Using the cross-sections and asymetries measured with the L3 detector during the 1990 and 1991 running period, we determine the mass and the width of the Z boson, the contributions of the Z exchange and the γZ ...
Adriani, O.   +229 more
openaire   +6 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Semiclassical S-matrix for black holes [PDF]

open access: yesJournal of High Energy Physics, 2015
We propose a semiclassical method to calculate S-matrix elements for two-stage gravitational transitions involving matter collapse into a black hole and evaporation of the latter. The method consistently incorporates back-reaction of the collapsing and emitted quanta on the metric.
Bezrukov, Fedor   +2 more
openaire   +3 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Dual S-matrix bootstrap. Part I. 2D theory

open access: yesJournal of High Energy Physics, 2020
Using duality in optimization theory we formulate a dual approach to the S-matrix bootstrap that provides rigorous bounds to 2D QFT observables as a consequence of unitarity, crossing symmetry and analyticity of the scattering matrix. We then explain how
Andrea L. Guerrieri   +2 more
doaj   +1 more source

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