Results 111 to 120 of about 1,574,976 (319)
Low-energy effects of Lepton Flavour Universality Violation
Journal of High Energy Physics, 2018 The persisting anomalous data in semileptonic B-decays point towards New Physics models exhibiting large sources of Lepton Flavour Universality Violation. In this work we generalise previous studies by considering frameworks which include an enlarged set
Claudia Cornella +2 more
doaj +1 more source
The problem of gauge invariance in Dirac field theory [PDF]
arXiv, 2003 Quantum field theory is assumed to be gauge invariant. However it is well known that when certain quantities are calculated using perturbation theory the results are not gauge invariant. The non-gauge invariant terms have to be removed in order to obtain a physically correct result.
arxiv
The Poisson structure of the mean-field equations in the Phi^4 theory
, 1998 We show that the mean-field time dependent equations in the Phi^4 theory can be put into a classical non-canonical hamiltonian framework with a Poisson structure which is a generalization of the standard Poisson bracket.
Balian +10 more
core +2 more sources
Invariant meshless discretization schemes [PDF]
, 2012 A method is introduced for the construction of meshless discretization schemes which preserve Lie symmetries of the differential equations that these schemes approximate. The method exploits the fact that equivariant moving frames provide a way of associating invariant functions to non-invariant functions.
arxiv +1 more source
A Nonparametric Peak Finder Algorithm and Its Application in Searches for New Physics
Advances in High Energy Physics, 2013 We have developed an algorithm for nonparametric fitting and extraction of statistically significant peaks in the presence of statistical and systematic uncertainties.
S. V. Chekanov, M. Erickson
doaj +1 more source
Experimental Non-Violation of the Bell Inequality
Entropy, 2018 A finite non-classical framework for qubit physics is described that challenges the conclusion that the Bell Inequality has been shown to have been violated experimentally, even approximately.
Tim N. Palmer
doaj +1 more source
Differential Invariants and Construction of Conditionally Invariant Equations [PDF]
arXiv, 2003 New concept of conditional differential invariant is discussed that would allow description of equations invariant with respect to an operator under a certain condition. Example of conditional invariants of the projective operator is presented.
arxiv
Model Independent Primordial Power Spectrum from Maxima, Boomerang, and DASI Data
, 2002 A model-independent determination of the primordial power spectrum of matter density fluctuations could uniquely probe physics of the very early universe, and provide powerful constraints on inflationary models.
Bennett C. L. +6 more
core +2 more sources
A Polynomially Irreducible Functional Basis of Hemitropic Invariants of Piezoelectric Tensors [PDF]
arXiv, 2019 For piezoelectric tensors, Olive (2014) proposed a minimal integrity basis of 495 hemitropic invariants, which is also a functional basis. In this article, we construct a new functional basis of hemitropic invariants of piezoelectric tensors, using the approach of Smith and Zheng.
arxiv
, 2002 The automorphisms of all 4-dimensional, real Lie Algebras are presented in a comprehensive way. Their action on the space of $4\times 4$, real, symmetric and positive definite, matrices, defines equivalence classes which are used for the invariant ...
A Dimakis +17 more
core +1 more source