Results 1 to 10 of about 36,776 (204)

Electroweak vacuum stability in the Higgs-Dilaton theory

Journal of High Energy Physics, 2017
We study the stability of the Electroweak (EW) vacuum in a scale-invariant extension of the Standard Model and General Relativity, known as a Higgs-Dilaton theory.
A. Shkerin
doaj   +1 more source

Sequestering in String Compactifications

, 2010
We study the mediation of supersymmetry breaking in string compactifications whose moduli are stabilized by nonperturbative effects. We begin with a critical review of arguments for sequestering in supergravity and in string theory.
Berg, Marcus, Marsh, David, McAllister, Liam, Pajer, Enrico   +3 more
core   +1 more source

UNIVERSAL NONPERTURBATIVE EFFECTS IN EVENT SHAPES FROM SOFT-COLLINEAR EFFECTIVE THEORY [PDF]

Modern Physics Letters A, 2007
Two-jet event shape distributions, traditionally studied in the language of perturbative QCD, can be described naturally in soft-collinear effective theory. In this language, we demonstrate factorization of event shape distributions into perturbatively-calculable hard and jet functions and nonperturbative soft functions, and show how the latter ...
openaire   +3 more sources

Tadpole diagrams in constant electromagnetic fields

Journal of High Energy Physics, 2017
We show how all possible one-particle reducible tadpole diagrams in constant electromagnetic fields can be constructed from one-particle irreducible constant-field diagrams.
Felix Karbstein
doaj   +1 more source

Squeezing, chaos and thermalization in periodically driven quantum systems: the case of bosonic preheating

Journal of High Energy Physics
The phenomena of Squeezing and chaos have recently been studied in the context of inflation. We apply this formalism in the post-inflationary preheating phase.
Ayan Chakraborty, Debaprasad Maity
doaj   +1 more source

New nonperturbative scales and glueballs in confining supersymmetric gauge theories

Journal of High Energy Physics, 2018
We show that new nonperturbative scales exist in four-dimensional N $$ \mathcal{N} $$ = 1 super-Yang-Mills theory compactified on a circle, with an iterated-exponential dependence on the inverse gauge coupling.
Mohamed M. Anber, Erich Poppitz
doaj   +1 more source

Experimental targets for photon couplings of the QCD axion

Journal of High Energy Physics, 2018
The QCD axion’s coupling to photons is often assumed to lie in a narrow band as a function of the axion mass. We demonstrate that several simple mechanisms, in addition to the photophilic clockwork axion already in the literature, can significantly ...
Prateek Agrawal, JiJi Fan, Matthew Reece, Lian-Tao Wang   +3 more
doaj   +1 more source

Scalar-fermion analytic bootstrap in 4D

Journal of High Energy Physics, 2019
In this work we discuss an analytic bootstrap approach [1, 2] in the context of spinning 4D conformal blocks [3, 4]. As an example we study the simplest spinning case, the scalar-fermion correlator ϕ ψ ϕ ψ ¯ $$ \left\langle \phi\ \psi\ \phi\ \overline ...
Emtinan Elkhidir, Denis Karateev
doaj   +1 more source

All-multiplicity amplitudes in impulsive PP-waves from the worldline formalism

Journal of High Energy Physics
We use the worldline formalism to derive Bern-Kosower type Master Formulae for the tree-level scattering of a charged particle and an arbitrary number of photons on impulsive PP-waves, where the coupling of the PP-wave to matter is treated fully non ...
Patrick Copinger, James P. Edwards, Anton Ilderton, Karthik Rajeev   +3 more
doaj   +1 more source

Nonperturbative effects in gluodynamics at T ≥ Tc

Physics Letters B, 1995
Abstract Contributions to gluon thermodynamics at temperature T > 0 due to a non-perturbative background field are calculated. The free energy is written as a double series in 1 N c and the strong coupling gs. The leading order contribution due to gluon loops in the nonperturbative background field contains explicitly the expectation ...
H.G Dosch, H.J Pirner, Yu.A Simonov
openaire   +1 more source