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This study aims to improve the TauFinder reconstruction algorithm for the MAIA detector concept. Through this work, we seek to increase the reconstruction efficiency and identification of hadronically decaying tau leptons. Through our work,…

Instrumentation and Detectors · Physics 2026-01-13 Cyrus Kianian , Moses Glassman , Abdollah Mohammadi

Motivated by the recent investigation of neutrinoless $\tau$-lepton decays by the CLEO collaboration, we perform a systematic analysis of such decays in a possible new-physics scenario with heavy Dirac/Majorana neutrinos, including…

High Energy Physics - Phenomenology · Physics 2010-11-01 Amon Ilakovac , Bernd A. Kniehl , Apostolos Pilaftsis

This paper presents a regenerative variant of the classical Ulam-von Neumann Markov chain Monte Carlo algorithm for the approximation of the matrix inverse. The algorithm presented in this paper, termed regenerative Ulam-von Neumann…

Numerical Analysis · Mathematics 2025-08-21 Soumyadip Ghosh , Lior Horesh , Vassilis Kalantzis , Yingdong Lu , Tomasz Nowicki

An intrinsic parity violating hadronic tau lepton decay is investigated. $\tau \to \pi \pi \eta \nu$ is the process in which the dominant contribution to the amplitude is due to the intrinsic parity violation. To predict the hadronic…

High Energy Physics - Phenomenology · Physics 2015-08-13 Takuya Morozumi , Hiroyuki Umeeda , Daiji Kimura

By exploiting the relatively long lifetime of the tau lepton, we propose several novel methods for searching for new physics at an electron-positron collider. We consider processes that involve final states consisting of a tau lepton pair…

High Energy Physics - Phenomenology · Physics 2016-04-13 Jinmian Li , Anthony G. Williams

The probability of the event that a neutrino produced in pion decay is detected in the intermediate $T$ shorter than the life-time $\tau_{\pi}$, $T \leq \tau_{\pi}$, is sensitive to the absolute mass of the neutrino. With a newly formulated…

High Energy Physics - Phenomenology · Physics 2013-11-28 Kenzo Ishikawa , Yutaka Tobita

Double-beta decay matrix elements (ME) for $^{76}Ge$ are calculated with different quasi random phase approximation (QRPA)-based methods. First, the ME for the two-neutrino mode are computed using two choices for the single particle (s.p.)…

Nuclear Theory · Physics 2009-11-06 S. Stoica , H. V. Klapdor-Kleingrothaus

We suggest mass matrices for neutrinos and charged leptons that can explain solar and atmospheric neutrino data. The resulting flavor mixing matrix $V_{\nu}$ has a property that $(V_{\nu})_{13}=0$, thus making $\nu_e \leftrightarrow…

High Energy Physics - Phenomenology · Physics 2009-10-30 Kyungsik Kang , Sin Kyu Kang , Jihn E. Kim , Pyungwon Ko

Efficient structural reanalysis for high-rank modification plays an important role in engineering computations which require repeated evaluations of structural responses, such as structural optimization and probabilistic analysis. To…

Computational Engineering, Finance, and Science · Computer Science 2025-05-20 Wenxiong Li , Suiyin Chen , Huan Huang

The limited availability and accuracy of simulated data has motivated the use of foundation models in high energy physics, with the idea to first train a task-agnostic model on large and potentially unlabeled datasets. This enables the…

High Energy Physics - Experiment · Physics 2025-07-09 Laurits Tani , Joosep Pata , Joschka Birk

A specific universal shape of empirical mass formula is proposed for all leptons $\nu_1, \nu_2, \nu_3$ and $e^-, \mu^-, \tau^- $ as well as all quarks $u, c, t$ and $d, s, b$ of three generations, parametrized by three free constants $ \mu,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wojciech Krolikowski

This paper presents a new $\tau$-lepton reconstruction and identification procedure at the ATLAS detector at the Large Hadron Collider, which leads to significantly improved performance in the case of physics processes where a highly…

High Energy Physics - Experiment · Physics 2025-07-09 ATLAS Collaboration

If the generating mechanism for neutrino mass is to account for both the newly observed muon anomalous magnetic moment as well as the present experimental bounds on lepton flavor nonconservation, then the neutrino mass matrix should be…

High Energy Physics - Phenomenology · Physics 2009-11-07 Ernest Ma , Martti Raidal

We present a same-level comparison of the most prominent inversion methods for the reconstruction of the matter density field in the quasi-linear regime from the Ly$\alpha$ forest flux. Moreover, we present a pathway for refining the…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-12 Hendrik Müller , Christoph Behrens , David James Edward Marsh

We show renormalization group invariants in neutrino sector. These are found from a simple analytical discussion of Majorana mass matrix for light neutrinos. It is shown that the invariants are obtained by taking ratios among elements of…

High Energy Physics - Phenomenology · Physics 2015-06-16 Naoyuki Haba , Ryo Takahashi

A method is presented for the reconstruction of both the background and signal in invariant-mass analyses for two-photon decays. The procedure does not make use of event mixing techniques and as such is based exclusively on an…

High Energy Physics - Phenomenology · Physics 2009-11-07 Nick van Eijndhoven , Wouter Wetzels

This article considers the inverse problem of Magnet resonance electrical impedance tomography (MREIT) in two dimensions. A rigorous mathematical framework for this inverse problem as well as the existing Harmonic $B_z$ Algorithm as a…

Numerical Analysis · Mathematics 2018-04-17 Dominik Garmatter , Bastian Harrach

The matrix element method is the LHC inference method of choice for limited statistics. We present a dedicated machine learning framework, based on efficient phase-space integration, a learned acceptance and transfer function. It is based…

High Energy Physics - Phenomenology · Physics 2024-11-13 Theo Heimel , Nathan Huetsch , Ramon Winterhalder , Tilman Plehn , Anja Butter

Spatial numerical integration is essential for finite element analysis. Currently, numerical integration schemes, mostly based on Gauss quadrature, are widely used. Herein, we present an alternative semi-analytical approach for mass matrix…

Numerical Analysis · Mathematics 2015-06-09 Eli Hanukah

We construct a neutrino mass matrix $M_{\nu}$ via a seesaw mechanism whith perturbed invariant under a cyclic permutation by introducing one parameter $\delta$ into the diagonal elements of $M_{\nu}$ with assumption that trace of the…

High Energy Physics - Phenomenology · Physics 2011-05-11 Asan Damanik