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The primary objective of the KATRIN experiment is to probe the absolute neutrino mass scale with a sensitivity of 200 meV (90% C.L.) by precision spectroscopy of tritium beta-decay. To achieve this, a low background of the order of 10^(-2)…

A sterile neutrino with mass in the eV range, mixing with the electron antineutrino, is allowed and possibly even preferred by cosmology and oscillation experiments. If such eV-mass neutrinos exist they provide a much better target for…

Cosmology and Nongalactic Astrophysics · Physics 2011-03-18 Anna Sejersen Riis , Steen Hannestad

Parameter estimation and uncertainty quantification are crucial in computational cardiology, as they enable the construction of digital twins that faithfully replicate the behavior of physical patients. Robust and efficient mathematical…

Numerical Analysis · Mathematics 2022-10-07 Matteo Salvador , Francesco Regazzoni , Luca Dede' , Alfio Quarteroni

The planned rhenium beta-decay experiment MARE might probe the absolute mass scale of neutrinos with the same sensitivity as the tritium beta-decay experiment KATRIN, which will start data taking in 2011 and will proceed for five years. We…

High Energy Physics - Phenomenology · Physics 2015-03-17 Rastislav Dvornicky , Kazuo Muto , Fedor Simkovic , Amand Faessler

Within the framework of the Standard Model of particle physics and standard cosmology, observations of the Cosmic Microwave Background (CMB) and Baryon Acoustic Oscillations (BAO) set stringent bounds on the sum of the masses of neutrinos.…

High Energy Physics - Phenomenology · Physics 2016-03-16 Yasaman Farzan , Steen Hannestad

A direct discovery of the cosmic neutrino background would bring to a closure the searches for relic left-over radiation predicted by the Hot Big Bang cosmology. Recently, the KATRIN experiment put a limit on the local relic neutrino…

High Energy Physics - Phenomenology · Physics 2023-10-06 Kyrylo Bondarenko , Alexey Boyarsky , Josef Pradler , Anastasia Sokolenko

We consider tritium beta decay with additional emission of light pseudoscalar or vector bosons coupling to electrons or neutrinos. The electron energy spectrum for all cases is evaluated and shown to be well estimated by approximated…

Although the quest for more accurate solutions is pushing deep learning research towards larger and more complex algorithms, edge devices demand efficient inference and therefore reduction in model size, latency and energy consumption. One…

An onboard prediction of dynamic parameters (e.g. Aerodynamic drag, rolling resistance) enables accurate path planning for EVs. This paper presents EV-PINN, a Physics-Informed Neural Network approach in predicting instantaneous battery…

Machine Learning · Computer Science 2024-11-25 Hansol Lim , Jee Won Lee , Jonathan Boyack , Jongseong Brad Choi

Neutrons serve as unique probes for exploring the microscopic structure of matter, with the performance of a neutron source fundamentally governing the depth of scientific exploration and the breadth of industrial applicability. To address…

Model compression is vital to the deployment of deep learning on edge devices. Low precision representations, achieved via quantization of weights and activations, can reduce inference time and memory requirements. However, quantifying and…

Machine Learning · Computer Science 2022-10-18 Ben Zandonati , Adrian Alan Pol , Maurizio Pierini , Olya Sirkin , Tal Kopetz

The shape of the electron energy spectrum in 3H beta-decay permits a direct assay of the absolute scale of the neutrino mass; a highly accurate theoretical description of the electron energy spectrum is necessary to the empirical task. We…

High Energy Physics - Phenomenology · Physics 2009-11-10 S. Gardner , V. Bernard , U. -G. Meißner

We tackle the problem of producing compact models, maximizing their accuracy for a given model size. A standard solution is to train networks with Quantization Aware Training, where the weights are quantized during training and the…

Machine Learning · Computer Science 2021-03-02 Angela Fan , Pierre Stock , Benjamin Graham , Edouard Grave , Remi Gribonval , Herve Jegou , Armand Joulin

Data analysis of the next generation effective antineutrino mass measurement experiment KATRIN requires reliable knowledge of systematic corrections. In particular, the width of the daughter molecular ion excitation spectrum rovibrational…

Atomic Physics · Physics 2016-06-10 Alexey V. Lokhov , Nikita A. Titov

Novel computing hardwares are necessary to keep up with today's increasing demand for data storage and processing power. In this research project, we turn to the brain for inspiration to develop novel computing substrates that are…

Neurons and Cognition · Quantitative Biology 2019-07-05 Kristine Heiney , Vibeke Devold Valderhaug , Ioanna Sandvig , Axel Sandvig , Gunnar Tufte , Hugo Lewi Hammer , Stefano Nichele

Given the high power density low discharge rate and decreasing cost rechargeable lithium-ion batteries LiBs have found a wide range of applications such as power grid level storage systems electric vehicles and mobile devices. Developing a…

Systems and Control · Electrical Eng. & Systems 2023-02-07 Anh Phuong Ngo , Nhat Le , Hieu T. Nguyen , Abdullah Eroglu , Duong T. Nguyen

Assuming lepton number conservation, hermiticity of the neutrino mass matrix and $\nu_{\mu} - \nu_{\tau}$ exchange symmetry, we show that we can determine the neutrino mass matrix completely from the existing data. Comparing with the…

High Energy Physics - Phenomenology · Physics 2014-05-26 Shreyashi Chakdar , Kirtiman Ghosh , S. Nandi

We present the results of the light sterile neutrino search from the second KATRIN measurement campaign in 2019. Approaching nominal activity, $3.76 \times 10^6$ tritium $\beta$-electrons are analyzed in an energy window extending down to…

High Energy Physics - Experiment · Physics 2022-05-04 M. Aker , D. Batzler , A. Beglarian , J. Behrens , A. Berlev , U. Besserer , B. Bieringer , F. Block , S. Bobien , B. Bornschein , L. Bornschein , M. Böttcher , T. Brunst , T. S. Caldwell , R. M. D. Carney , S. Chilingaryan , W. Choi , K. Debowski , M. Descher , D. Díaz Barrero , P. J. Doe , O. Dragoun , G. Drexlin , F. Edzards , K. Eitel , E. Ellinger , R. Engel , S. Enomoto , A. Felden , J. A. Formaggio , F. M. Fränkle , G. B. Franklin , F. Friedel , A. Fulst , K. Gauda , A. S. Gavin , W. Gil , F. Glück , R. Grössle , R. Gumbsheimer , V. Hannen , N. Haußmann , K. Helbing , S. Hickford , R. Hiller , D. Hillesheimer , D. Hinz , T. Höhn , T. Houdy , A. Huber , A. Jansen , C. Karl , J. Kellerer , M. Kleifges , M. Klein , C. Köhler , L. Köllenberger , A. Kopmann , M. Korzeczek , A. Kovalík , B. Krasch , H. Krause , L. La Cascio , T. Lasserre , T. L. Le , O. Lebeda , B. Lehnert , A. Lokhov , M. Machatschek , E. Malcherek , M. Mark , A. Marsteller , E. L. Martin , C. Melzer , S. Mertens , J. Mostafa , K. Müller , H. Neumann , S. Niemes , P. Oelpmann , D. S. Parno , A. W. P. Poon , J. M. L. Poyato , F. Priester , J. Ráliš , S. Ramachandran , R. G. H. Robertson , W. Rodejohann , C. Rodenbeck , M. Röllig , C. Röttele , M. Ryšavý , R. Sack , A. Saenz , R. Salomon , P. Schäfer , L. Schimpf , M. Schlösser , K. Schlösser , L. Schlüter , S. Schneidewind , M. Schrank , A. Schwemmer , M. Šefčík , V. Sibille , D. Siegmann , M. Slezák , F. Spanier , M. Steidl , M. Sturm , H. H. Telle , L. A. Thorne , T. Thümmler , N. Titov , I. Tkachev , K. Urban , K. Valerius , D. Vénos , A. P. Vizcaya Hernández , C. Weinheimer , S. Welte , J. Wendel , M. Wetter , C. Wiesinger , J. F. Wilkerson , J. Wolf , S. Wüstling , J. Wydra , W. Xu , S. Zadoroghny , G. Zeller

At the KATRIN experiment, the electron antineutrino mass is inferred from the shape of the $\beta$-decay spectrum of tritium. Important systematic effects in the Windowless Gaseous Tritium Source (WGTS) of the experiment include the energy…

Instrumentation and Methods for Astrophysics · Physics 2022-10-05 Jonas Kellerer , Felix Spanier

We propose a physics-informed neural network (PINN) model to efficiently predict the self-energy of Anderson impurity models (AIMs) based on the Lehmann representation. As an example, we apply the PINN model to a single-orbital AIM (SAIM)…

Strongly Correlated Electrons · Physics 2024-12-02 Fumiya Kakizawa , Satoshi Terasaki , Hiroshi Shinaoka