Results 41 to 50 of about 5,364 (292)

Resummation of Massive Gravity

open access: yesPhysical Review Letters, 2011
We construct four-dimensional covariant non-linear theories of massive gravity which are ghost-free in the decoupling limit to all orders. These theories resum explicitly all the nonlinear terms of an effective field theory of massive gravity. We show that away from the decoupling limit the Hamiltonian constraint is maintained at least up to and ...
de Rham Claudia   +2 more
openaire   +5 more sources

Hard Noncommutative Loops Resummation [PDF]

open access: yesPhysical Review Letters, 2002
The non-commutative version of the euclidean $g^2ϕ^4$ theory is considered. By using Wilsonian flow equations the ultraviolet renormalizability can be proved to all orders in perturbation theory. On the other hand, the infrared sector cannot be treated perturbatively and requires a resummation of the leading divergencies in the two-point function. This
GRIGUOLO, Luca, PIETRONI, MASSIMO
openaire   +3 more sources

Thermal resummation and phase transitions [PDF]

open access: yesThe European Physical Journal C, 2018
38 pages, 6 figures, plus appendix and ...
David Curtin   +2 more
openaire   +3 more sources

Multi-loop amplitudes and resummation [PDF]

open access: yesPhysics Letters B, 2003
We explore the relation between resummation and explicit multi-loop calculations for QCD hard-scattering amplitudes. We describe how the factorization properties of amplitudes lead to the exponentiation of double and single poles at each order of perturbation theory. For these amplitudes, previously-observed relations between single and double poles in
Sterman, George   +1 more
openaire   +3 more sources

Resummation for QCD hard scattering [PDF]

open access: yesNuclear Physics B, 1997
We resum distributions that are singular at partonic threshold (the elastic limit) in heavy quark production, in terms of logarithmic behavior in moment space. The method may be applied to a variety of cross sections sensitive to the edge of phase space, including transverse momentum distributions.
Kidonakis, Nikolaos, Sterman, George
openaire   +2 more sources

Momentum conservation and unitarity in parton showers and NLL resummation

open access: yesJournal of High Energy Physics, 2018
We present a systematic study of differences between NLL resummation and parton showers. We first construct a Markovian Monte-Carlo algorithm for resummation of additive observables in electron-positron annihilation.
Stefan Höche   +2 more
doaj   +1 more source

The Resummation of One Particle Lines [PDF]

open access: yesCommunications in Mathematical Physics, 1979
We propose a partial resummation for a weak coupling cluster expansion. The resummation gives one particle lines with in/out field propagators. We give a Bethe-Salpeter equation in which one particle subtractions are defined using physical one particle states.
Glimm, James, Jaffe, Arthur
openaire   +2 more sources

Electroweak resummation of neutralino dark-matter annihilation into high-energy photons

open access: yes, 2023
We consider the resummation of large electroweak Sudakov logarithms for the annihilation of neutralino DM with (TeV) mass to high-energy photons in the minimal supersymmetric standard model, extending previous work on the minimal wino and Higgsino models.
S. Lederer   +5 more
core   +1 more source

Groomed jet mass at high precision

open access: yesPhysics Letters B, 2020
We present predictions of the distribution of groomed heavy jet mass in electron-positron collisions at the next-to-next-to-leading order accuracy matched with the resummation of large logarithms to next-to-next-to-next-to-leading logarithmic accuracy ...
Adam Kardos   +2 more
doaj   +1 more source

QCD Resummation for Jet Substructures

open access: yesPhysical Review Letters, 2011
4 pages, 4 ...
Li, Hsiang-nan, Li, Zhao, Yuan, C. -P.
openaire   +4 more sources

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