Results 11 to 20 of about 1,594,650 (367)
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
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Event-Based Anomaly Detection for Searches for New Physics [PDF]
Universe, 2022 This paper discusses model-agnostic searches for new physics at the Large Hadron Collider using anomaly-detection techniques for the identification of event signatures that deviate from the Standard Model (SM).
Sergei Chekanov, Walter Hopkins
doaj +2 more sources
Interpreting electroweak precision data including the W-mass CDF anomaly [PDF]
Journal of High Energy Physics, 2022 We perform a global fit of electroweak data, finding that the anomaly in the W mass claimed by the CDF collaboration can be reproduced as a universal new-physics correction to the T parameter or |H † D μ H|2 operator.
Alessandro Strumia
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Flavour alignment of New Physics in light of the (g − 2)μ anomaly [PDF]
Journal of High Energy Physics, 2022 We investigate the flavour alignment conditions that New Physics (NP) models need to satisfy in order to address the (g − 2)μ anomaly and, at the same time, be consistent with the tight bounds from μ → eγ and τ → μγ.
Gino Isidori, Julie Pagès, Felix Wilsch
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Anomaly detection in the presence of irrelevant features [PDF]
Journal of High Energy Physics, 2023 Experiments at particle colliders are the primary source of insight into physics at microscopic scales. Searches at these facilities often rely on optimization of analyses targeting specific models of new physics. Increasingly, however, data-driven model-
Marat Freytsis +2 more
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High-dimensional and permutation invariant anomaly detection [PDF]
SciPost Physics, 2023 Methods for anomaly detection of new physics processes are often limited to low-dimensional spaces due to the difficulty of learning high-dimensional probability densities. Particularly at the constituent level, incorporating desirable properties such as
Vinicius Mikuni, Benjamin Nachman
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Self-supervised anomaly detection for new physics [PDF]
Physical Review D, 2022 We investigate a method of model-agnostic anomaly detection through studying jets, collimated sprays of particles produced in high-energy collisions. We train a transformer neural network to encode simulated QCD"event space"dijets into a low-dimensional ...
B. Dillon, R. Mastandrea, B. Nachman
semanticscholar +5 more sources
Anomaly Detection for Resonant New Physics with Machine Learning [PDF]
Physical Review Letters, 2018 Despite extensive theoretical motivation for physics beyond the Standard Model (BSM) of particle physics, searches at the Large Hadron Collider (LHC) have found no significant evidence for BSM physics.
Collins, Jack H. +2 more
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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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Quantum Anomaly in Molecular Physics [PDF]
Physical Review Letters, 2001 Physical Review ...
Horacio E. Camblong +3 more
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