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The minimal supersymmetric extension of the Standard Model (MSSM) is reviewed. In the most general framework with minimal field content and R-parity conservation, the MSSM is a 124-parameter model (henceforth called MSSM-124). An acceptable…

高能物理 - 唯象学 · 物理学 2008-11-26 Howard E. Haber

The development of neuromorphic hardware and modeling of biological neural networks requires algorithms with local learning rules. Artificial neural networks using local learning rules to perform principal subspace analysis (PSA) and…

神经与进化计算 · 计算机科学 2021-02-11 Yanis Bahroun , Dmitri B. Chklovskii

Deep learning has been successful in automating the design of features in machine learning pipelines. However, the algorithms optimizing neural network parameters remain largely hand-designed and computationally inefficient. We study if we…

机器学习 · 计算机科学 2021-10-26 Boris Knyazev , Michal Drozdzal , Graham W. Taylor , Adriana Romero-Soriano

In this article, we employ a machine learning (ML) approach for the estimations of four fundamental parameters, namely, the Hubble constant ($H_0$), matter ($\Omega_{0m}$), curvature ($\Omega_{0k}$) and vacuum ($\Omega_{0\Lambda}$)…

宇宙学与河外天体物理 · 物理学 2024-10-10 Srikanta Pal , Rajib Saha

I define the Standard Supersymmetric Model (SSM) as the minimal supersymmetric extension ofthe Standard Model with gauge coupling unification and universal soft supersymmetry breaking at the unification scale. This well-defined model has a…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Kelley

Recent LHC data significantly extend the exclusion limits for supersymmetric particles, particularly in the jets plus missing transverse momentum channels. The most recent such data have so far been interpreted by the experiment in only two…

高能物理 - 唯象学 · 物理学 2015-05-30 B. C. Allanach , T. J. Khoo , K. Sakurai

We present a likelihood analysis of the parameter space of the constrained minimal supersymmetric extension of the Standard Model (CMSSM), in which the input scalar masses m_0 and fermion masses m_{1/2} are each assumed to be universal. We…

高能物理 - 唯象学 · 物理学 2009-09-11 John Ellis , Keith A. Olive , Yudi Santoso , Vassilis C. Spanos

The discovery potential of the LHC is investigated for the minimal anomaly-mediated supersymmetry breaking (mAMSB) scenario, using the ATLAS fast detector simulator, including track reconstruction and particle identification. Generic…

高能物理 - 唯象学 · 物理学 2007-11-27 A. J. Barr , B. C. Allanach , C. G. Lester , M. A. Parker , P. Richardson

We present CosmicANNEstimator (Cosmological Parameters Artificial Neural Network Estimator), a machine learning approach for constraining cosmological parameters within the Lambda Cold Dark Matter ($\Lambda$CDM) framework. Our methodology…

宇宙学与河外天体物理 · 物理学 2025-11-07 Ashly Joseph , Albin Joseph , Christina Terese Joseph , John Paul Martin , Sunil Kumar PV , Sarthak Giri

Statistical divergences (SDs), which quantify the dissimilarity between probability distributions, are a basic constituent of statistical inference and machine learning. A modern method for estimating those divergences relies on…

统计理论 · 数学 2022-03-30 Sreejith Sreekumar , Ziv Goldfeld

Artificial neural networks are functions depending on a finite number of parameters typically encoded as weights and biases. The identification of the parameters of the network from finite samples of input-output pairs is often referred to…

机器学习 · 计算机科学 2022-11-10 Massimo Fornasier , Timo Klock , Marco Mondelli , Michael Rauchensteiner

We present a novel algorithm to identify potential dispersed signals of new physics in the slew of published LHC results. It employs a random walk algorithm to introduce sets of new particles, dubbed "proto-models", which are tested against…

高能物理 - 唯象学 · 物理学 2021-03-30 Wolfgang Waltenberger , André Lessa , Sabine Kraml

We present the results of a realistic global fit of the Lagrangian parameters of the Minimal Supersymmetric Standard Model to simulated data from ILC and LHC with realistic estimates of the observable uncertainties. Higher order radiative…

高能物理 - 唯象学 · 物理学 2007-05-23 Philip Bechtle , Klaus Desch , Peter Wienemann

The experiments at the Large Hadron Collider (LHC) have pushed the limits on masses of supersymmetric particles beyond the $\sim$TeV scale. This compromises naturalness of the simplest supersymmetric extension of the Standard Model, the…

高能物理 - 唯象学 · 物理学 2019-08-27 Archil Kobakhidze , Matthew Talia

Recent calculations of supersymmetric corrections to the conflicting ratios $R_b$ and $R_c$ have shown that an alleged discrepancy between the SM predictions of these observables and the corresponding experimental values can be cured in the…

高能物理 - 唯象学 · 物理学 2008-12-22 David Garcia , Joan Sola

Machine learning (ML) methods have become popular for parameter inference in cosmology, although their reliance on specific training data can cause difficulties when applied across different data sets. By reproducing and testing networks…

宇宙学与河外天体物理 · 物理学 2024-12-23 Kimeel Sooknunan , Emma Chapman , Luke Conaboy , Daniel Mortlock , Jonathan Pritchard

We perform a global Bayesian fit of the phenomenological minimal supersymmetric standard model (pMSSM) to current indirect collider and dark matter data. The pMSSM contains the most relevant 25 weak-scale MSSM parameters, which are…

高能物理 - 唯象学 · 物理学 2010-05-28 S. S. AbdusSalam , B. C. Allanach , F. Quevedo , F. Feroz , M. Hobson

Extending the Standard Model (SM) by a $U(1)_{L_\mu-L_\tau}$ group gives potentially significant new contributions to $g_\mu-2$, allows the construction of realistic neutrino mass matrices, incorporates lepton universality violation, and…

高能物理 - 唯象学 · 物理学 2022-02-18 Manuel Drees , Meng Shi , Zhongyi Zhang

This letter focuses on solving the challenging problem of detecting natural image boundaries. A boundary usually refers to the border between two regions with different semantic meanings. Therefore, a measurement of dissimilarity between…

计算机视觉与模式识别 · 计算机科学 2015-06-19 Fei He , Shengjin Wang

This article attempts to summarize the effort by the particle physics community in addressing the tedious work of determining the parameter spaces of beyond-the-standard-model (BSM) scenarios, allowed by data. These spaces, typically…

高能物理 - 唯象学 · 物理学 2025-01-30 Rajneil Baruah , Subhadeep Mondal , Sunando Kumar Patra , Satyajit Roy