Results 31 to 40 of about 6,660,767 (299)

Tr(F 3) supersymmetric form factors and maximal transcendentality. Part I. N $$ \mathcal{N} $$ = 4 super Yang-Mills

open access: yesJournal of High Energy Physics, 2018
In the large top-mass limit, Higgs plus multi-gluon amplitudes in QCD can be computed using an effective field theory. This approach turns the computation of such amplitudes into that of form factors of operators of increasing classical dimension.
Andreas Brandhuber   +3 more
doaj   +1 more source

Fermionic pole-skipping in holography

open access: yesJournal of High Energy Physics, 2020
We examine thermal Green’s functions of fermionic operators in quantum field theories with gravity duals. The calculations are performed on the gravity side using ingoing Eddington-Finkelstein coordinates.
Nejc Čeplak   +2 more
doaj   +1 more source

De Sitter vs Quintessence in String Theory [PDF]

open access: yesFortschritte der Physik, 2018
De Sitter solutions have been recently conjectured to be incompatible with quantum gravity. In this paper we critically assess the progress and challenges of different mechanisms to obtain de Sitter vacua in string compactifications and compare them to ...
M. Cicoli   +4 more
semanticscholar   +1 more source

String theory [PDF]

open access: yesThe European Physical Journal C, 2003
11 pages.
openaire   +2 more sources

Non-geometric backgrounds in string theory [PDF]

open access: yesPhysics reports, 2018
This review provides an introduction to non-geometric backgrounds in string theory. Starting from a discussion of T-duality, geometric and non-geometric torus-fibrations are reviewed, generalised geometry and its relation to non-geometric backgrounds are
Erik Plauschinn
semanticscholar   +1 more source

Form factor recursion relations at loop level

open access: yesJournal of High Energy Physics, 2019
We introduce a prescription to define form factor integrands at loop level in planar N = 4 $$ \mathcal{N}=4 $$ supersymmetric Yang-Mills theory. This relies on a periodic kinematic configuration that has been instrumental to describe form factors at ...
Lorenzo Bianchi   +3 more
doaj   +1 more source

Data science applications to string theory

open access: yes, 2020
We first introduce various algorithms and techniques for machine learning and data science. While there is a strong focus on neural network applications in unsupervised, supervised and reinforcement learning, other machine learning techniques are ...
Fabian Ruehle
semanticscholar   +1 more source

Mechanisms for primordial black hole production in string theory [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2018
We consider mechanisms for producing a significant population of primordial black holes (PBHs) within string inspired single field models of inflation. The production of PBHs requires a large amplification in the power spectrum of curvature perturbations
Ogan Özsoy   +3 more
semanticscholar   +1 more source

Supersymmetrical string theories

open access: yesPhysics Letters B, 1982
A supersymmetrical light-cone-gauge string action is presented. It provides a basis for understanding the previously-studied supersymmetrical dual string theory as well as two new closed-string theories that have extended supersymmetry in ten dimensions, corresponding to N = 8 supersymmetry in four dimensions.
Michael B. GREEN, John H. SCHWARZ
openaire   +1 more source

Standard Model EFTs via on-shell methods

open access: yesJournal of High Energy Physics, 2021
We present the Standard Model Effective Field Theories (SMEFT) from purely on-shell arguments. Starting from few basics assumptions such as Poincaré invariance and locality, we classify all the renormalisable and non-renormalisable interactions at lowest
Manuel Accettulli Huber   +1 more
doaj   +1 more source

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