Results 21 to 30 of about 1,594,650 (367)

Machine Learning for Anomaly Detection in Particle Physics [PDF]

open access: yesReviews in Physics, 2023
The detection of out-of-distribution data points is a common task in particle physics. It is used for monitoring complex particle detectors or for identifying rare and unexpected events that may be indicative of new phenomena or physics beyond the Standard Model.
Vasilis Belis   +2 more
semanticscholar   +4 more sources

Dai-Freed anomalies in particle physics [PDF]

open access: diamondJournal 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
openalex   +10 more sources

Old and new physics interpretations of the NuTeV anomaly [PDF]

open access: bronzeJournal 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
openalex   +7 more sources

Anomaly detection in collider physics via factorized observables [PDF]

open access: yesPhysical Review D, 2023
To maximize the discovery potential of high-energy colliders, experimental searches should be sensitive to unforeseen new physics scenarios. This goal has motivated the use of machine learning for unsupervised anomaly detection.
E. Metodiev, Jesse Thaler, Raymond Wynne
semanticscholar   +1 more source

Creating simple, interpretable anomaly detectors for new physics in jet substructure [PDF]

open access: yesPhysical Review D, 2022
Anomaly detection with convolutional autoencoders is a popular method to search for new physics in a model-agnostic manner. These techniques are powerful, but they are still a"black box,"since we do not know what high-level physical observables determine
Layne Bradshaw   +2 more
semanticscholar   +1 more source

The LHC Olympics 2020 a community challenge for anomaly detection in high energy physics [PDF]

open access: yesReports on progress in physics. Physical Society, 2021
A new paradigm for data-driven, model-agnostic new physics searches at colliders is emerging, and aims to leverage recent breakthroughs in anomaly detection and machine learning. In order to develop and benchmark new anomaly detection methods within this
G. Kasieczka   +46 more
semanticscholar   +1 more source

New physics interpretation of $W$-boson mass anomaly [PDF]

open access: yes, 2022
The CDF collaboration has recently reported an updated result on the $W$-boson mass measurement, showing a $7\sigma$ deviation from the standard model prediction. The discrepancy may indicate new contributions to the Fermi coupling constant.
Motoi Endo, S. Mishima
semanticscholar   +1 more source

Using a nested anomaly detection machine learning algorithm to study the neutral triple gauge couplings at an e+e− collider

open access: yesNuclear Physics B, 2022
Anomaly detection algorithms have been proved to be useful in the search of new physics beyond the Standard Model. However, a prerequisite for using an anomaly detection algorithm is that the signal to be sought is indeed anomalous.
Ji-Chong Yang, Yu-Chen Guo, Li-Hua Cai
doaj   +1 more source

Anomaly detection in high-energy physics using a quantum autoencoder [PDF]

open access: yesPhysical Review D, 2021
The lack of evidence for new interactions and particles at the Large Hadron Collider has motivated the high-energy physics community to explore model-agnostic data-analysis approaches to search for new physics.
Vishal S. Ngairangbam   +2 more
semanticscholar   +1 more source

Exploring B-physics anomalies at colliders [PDF]

open access: yesProceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021), 2022
4 pages, 2 figures; contribution to the proceedings of the EPS-HEP 2021 ...
Alda Gallo, Jorge   +2 more
openaire   +3 more sources

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