Results 51 to 60 of about 11,439 (158)
IEEE AccessDiagnosing abnormal events and localizing their sources in distribution grids are complicated by DER-driven operating variability, limited and heterogeneous sensing, and long-tail anomaly distributions.
Rui Zhang +4 more
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Robust anomaly detection for particle physics using multi-background representation learning
Machine Learning: Science and TechnologyAnomaly, or out-of-distribution, detection is a promising tool for aiding discoveries of new particles or processes in particle physics. In this work, we identify and address two overlooked opportunities to improve anomaly detection (AD) for high-energy ...
Abhijith Gandrakota +6 more
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Proceedings of 8th Symposium on Prospects in the Physics of Discrete Symmetries — PoS(DISCRETE2022)I provide a (personal) review of the current hints for physics beyond the Standard Model, called ``anomalies'', obtained both at the intensity frontier (flavour and electroweak precision observables) and in direct LHC searches. This includes the deviations from the Standard Model predictions in semi-leptonic $B$ decays, the anomalous magnetic moment of
openaire +3 more sources
There is no new physics in the multiplicative anomaly
, 1998 24 pages, RevTex, no ...
McKenzie-Smith, J. J., Toms, D. J.
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Dark matter for b → sμ + μ − anomaly in a gauged U(1) X model
Journal of High Energy Physics, 2018 We propose a new physics model which has a cold dark matter candidate and can explain the b → sμ + μ − anomaly at the same time. Our model includes a scalar quark q ˜ $$ \tilde{q} $$ and a scalar lepton ℓ ˜ $$ \tilde{\ell} $$ which are SU(2) L -doublet ...
Seungwon Baek, Chaehyun Yu
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Precision muon-related observables as a tool to constrain new physics models
Nuclear Physics BWe propose a set of precision muon-related observables that serve as a tool to constrain new physics models. Using LEP's precision measurements on the Z-boson pole, we derive bounds on the new physics quantum contributions to the decay Z→μ+μ−.
Gabriel Lourenço +3 more
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On the magnetic anomaly at Easter Island during the 2010 Chile tsunami
Theoretical and Applied Mechanics Letters, 2015 A magnetic anomaly was recorded at Easter Island on 27 February 2010 during the Chile tsunami event. The physics of the magnetic anomaly is analyzed using kinematic dynamo theory.
Benlong Wang +3 more
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ELECTROWEAK GAUGE ANOMALY AND THE NEW PHYSICS SCALE
Modern Physics Letters A, 1992 It is argued that chiral anomalies in the effective gauge theories are allowed, as far as the new physics scale is not too large. We estimate the anomaly-induced masses of the weak bosons, when the anomalies exist in the electroweak gauge theory, and compare them with the experimental results to extract the upper bound on the new-physics scale.
Akama, Keiichi, Hattori, Takashi
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Recurrent neural networks for anomaly detection in magnet power supplies of particle accelerators
Machine Learning with ApplicationsThis research illustrates how time-series forecasting employing recurrent neural networks (RNNs) can be used for anomaly detection in particle accelerators—complex machines that accelerate elementary particles to high speeds for various scientific and ...
Ihar Lobach, Michael Borland
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Non-resonant anomaly detection with background extrapolation
Journal of High Energy PhysicsComplete anomaly detection strategies that are both signal sensitive and compatible with background estimation have largely focused on resonant signals. Non-resonant new physics scenarios are relatively under-explored and may arise from off-shell effects
Kehang Bai +2 more
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