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Axion and neutrino physics from anomaly cancellation [PDF]
Physical Review D, 2001 It has been recently shown that the requirement of anomaly cancellation in a (non-supersymmetric) six-dimensional version of the standard model fixes the field content to the known three generations.
M. Fabbrichesi +2 more
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Challenges for unsupervised anomaly detection in particle physics [PDF]
Journal of High Energy Physics, 2022 Anomaly detection relies on designing a score to determine whether a particular event is uncharacteristic of a given background distribution. One way to define a score is to use autoencoders, which rely on the ability to reconstruct certain types of data
Katherine Fraser +4 more
doaj +6 more sources
Quantum Anomaly in Molecular Physics [PDF]
Physical Review Letters, 2001 Physical Review ...
Horacio E. Camblong +3 more
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Condensates and anomaly cascade in vector-like theories [PDF]
Journal of High Energy Physics, 2021 We study the bilinear and higher-order fermion condensates in 4-dimensional SU(N) gauge theories with a single Dirac fermion in a general representation.
Mohamed M. Anber
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Quantum anomaly detection for collider physics
Journal of High Energy Physics, 2023 We explore the use of Quantum Machine Learning (QML) for anomaly detection at the Large Hadron Collider (LHC). In particular, we explore a semi-supervised approach in the four-lepton final state where simulations are reliable enough for a direct ...
Sulaiman Alvi +2 more
doaj +6 more sources
INSTANTONS AND CHIRAL ANOMALY IN FUZZY PHYSICS [PDF]
International Journal of Modern Physics A, 2001 In continuum physics, there are important topological aspects like instantons, θ-terms and the axial anomaly. Conventional lattice discretizations often have difficulties in treating one or the other of these aspects. In this paper, we develop discrete quantum field theories on fuzzy manifolds using noncommutative geometry.
A. P. Balachandran, Sachindeo Vaidya
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New Physics Suggested by Atomki Anomaly [PDF]
Frontiers in Physics, 2019 We consider several extensions of the Standard Model (SM) which can explain the anomalies observed by the Atomki collaboration in the decay of excited states of Beryllium via a new boson with a mass around 17 MeV yielding e+e− pairs.
Luigi Delle Rose +6 more
doaj +5 more sources
Dai-Freed anomalies in particle physics [PDF]
Journal of High Energy Physics, 2019 Abstract Anomalies can be elegantly analyzed by means of the Dai-Freed theorem. In this framework it is natural to consider a refinement of traditional anomaly cancellation conditions, which sometimes leads to nontrivial extra constraints in the fermion spectrum.
Iñaki García‐Etxebarria +1 more
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Deep Set Auto Encoders for Anomaly Detection in Particle Physics [PDF]
SciPost Physics, 2022 There is an increased interest in model agnostic search strategies for physics beyond the standard model at the Large Hadron Collider. We introduce a Deep Set Variational Autoencoder and present results on the Dark Machines Anomaly Score Challenge. We
Bryan Ostdiek
doaj +2 more sources
Old and new physics interpretations of the NuTeV anomaly [PDF]
Journal of High Energy Physics, 2002 We discuss whether the NuTeV anomaly can be explained, compatibly with all other data, by QCD effects (maybe, if the strange sea is asymmetric, or there is a tiny violation of isospin), new physics in propagators or couplings of the vector bosons (not really), loops of supersymmetric particles (no), dimension six operators (yes, for one specific SU(2 ...
Sacha Davidson +4 more
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