Results 41 to 50 of about 2,417 (212)

Holographic RG flow and reparametrization invariance of Wilson loops

Journal of High Energy Physics, 2022
We study the fate of reparametrization invariance of Wilson loops, also known as ‘zig-zag’ symmetry, under the RG flow using some simple cases as guidance.
Diego Gutiez, Carlos Hoyos
doaj   +1 more source

Bayesian Methods for Step-Stress Accelerated Test under Gamma Distribution with a Useful Reparametrization and an Industrial Data Application

Mathematics
This paper presents a multiple step-stress accelerated life test using type II censoring. Assuming that the lifetimes of the test item follow the gamma distribution, the maximum likelihood estimation and Bayesian approaches are used to estimate the ...
Hassan S. Bakouch, Fernando A. Moala, Shuhrah Alghamdi, Olayan Albalawi   +3 more
doaj   +1 more source

Motion Reparametrization

, 1998
This paper presents an algorithm for reparametrization of 1D signals in the discrete domain, according to a userdefined velocity function. The application outlined in this work is the reparametrization of joint curves obtained from human motion captured ...
da Silva, F.W., Velho, L., Gomes, J.
core   +1 more source

Reparametrization Invariance as Gauge Symmetry

International Journal of Theoretical Physics, 1999
Reparametrization invariance being treated as a gauge symmetry shows some specific peculiarities. We study these peculiarities both from a general point of view and on concrete examples. We consider the canonical treatment of reparametrization invariant systems in which one fixes the gauge on the classical level by means of time-dependent gauge ...
Fülöp, G., Gitman, D. M., Tyutin, I. V.   +2 more
openaire   +2 more sources

Unimodular gauge in perturbative gravity and supergravity

Physics Letters B, 2020
This paper explains the Unimodular gauge fixing of gravity and supergravity in the framework of a perturbative BRST construction. The unphysical sector contains additional BRST-exact quartets to suppress possible ambiguities and impose both the ...
Laurent Baulieu
doaj   +1 more source

The Scale Invariant Vacuum Paradigm: Main Results and Current Progress

Universe, 2022
We present a summary of the main results within the Scale Invariant Vacuum (SIV) paradigm as related to the Weyl Integrable Geometry (WIG) as an extension to the standard Einstein General Relativity (EGR).
Vesselin G. Gueorguiev, Andre Maeder
doaj   +1 more source

Reparametrization invariant collinear operators

, 2009
In constructing collinear operators, which describe the production of energetic jets or energetic hadrons, important constraints are provided by reparametrization invariance (RPI).
Marcantonini, Claudio, Stewart, Iain
core   +1 more source

Warped Schwarzian theory

Journal of High Energy Physics, 2020
We consider the (twisted) warped Virasoro group Diff(S 1)⋉C ∞ (S 1) in the presence of its three cocycles. We compute the Kirillov-Kostant-Souriau symplectic 2-form on coadjoint orbits.
Hamid R. Afshar
doaj   +1 more source

Perfect discretization of reparametrization invariant path integrals

, 2011
To obtain a well defined path integral one often employs discretizations. In the case of gravity and reparametrization invariant systems, the latter of which we consider here as a toy example, discretizations generically break diffeomorphism and ...
Bianca Dittrich, Sebastian Steinhaus, Bahr, B., Benjamin Bahr, Dittrich, B., Steinhaus, S.   +5 more
core   +1 more source

V cb determination from inclusive b → c decays: an alternative method

Journal of High Energy Physics, 2019
The determination of V cb relies on the Heavy-Quark Expansion and the extraction of the non-perturbative matrix elements from inclusive b → c decays. The proliferation of these matrix elements complicates their extraction at 1/m b 4 and higher, thereby ...
Matteo Fael, Thomas Mannel, K. Keri Vos
doaj   +1 more source