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We investigate enhancing the sensitivity of new physics searches at the LHC by machine learning in the case of background dominance and a high degree of overlap between the observables for signal and background. We use two different models,…

High Energy Physics - Phenomenology · Physics 2023-07-10 Daniel Alvestad , Nikolai Fomin , Jörn Kersten , Steffen Maeland , Inga Strümke

We propose a new method for the discrimination of sub-micron nuclear recoil tracks from an instrumental background in fine-grain nuclear emulsions used in the directional dark matter search. The proposed method uses a 3D Convolutional…

High Energy Physics - Experiment · Physics 2022-02-17 Artem Golovatiuk , Andrey Ustyuzhanin , Andrey Alexandrov , Giovanni De Lellis

The need to understand and reject backgrounds in Ge-diode detector double-beta decay experiments has given rise to the development of pulse shape analysis in such detectors to discern single-site energy deposits from multiple-site deposits.…

Nuclear Experiment · Physics 2009-11-11 S. R. Elliott , V. M. Gehman , K. Kazkaz , D-M. Mei , A. R. Young

In experiments searching for neutrinoless double-beta decay, the possibility of identifying the two emitted electrons is a powerful tool in rejecting background events and therefore improving the overall sensitivity of the experiment. In…

Point-contact p-type high-purity germanium detectors (PPC HPGe) are particularly suited for detection of sub-keV nuclear recoils from coherent elastic scattering of neutrinos or light dark matter particles. While these particles are…

Liquid scintillators are a common choice for neutrino physics experiments, but their capabilities to perform background rejection by scintillation pulse shape discrimination is generally limited in large detectors. This paper describes a…

Detecting Beyond Standard Model (BSM) signals in high-energy particle collisions presents significant challenges due to complex data and the need to differentiate rare signal events from Standard Model (SM) backgrounds. This study…

High Energy Physics - Phenomenology · Physics 2024-11-12 Ali Çelik

In the pursuit of identifying rare two-particle events within the GADGET II Time Projection Chamber (TPC), this paper presents a comprehensive approach for leveraging Convolutional Neural Networks (CNNs) and various data processing methods.…

In the realm of dijet searches in high-energy physics, a significant challenge has emerged: with experiments producing more and more data, the traditional methods of using analytic functions to describe dijet mass spectra start to fail. To…

High Energy Physics - Experiment · Physics 2024-03-14 Sergei V. Chekanov , Rui Zhang

Advances in machine learning have led to an emergence of new paradigms in the analysis of large data which could assist traditional approaches in the search for new physics amongst the immense Standard Model backgrounds at the Large Hadron…

High Energy Physics - Experiment · Physics 2017-12-12 Chang-Wei Loh , Rui Zhang , Yong-Heng Xu , Zhi-Qiang Qian , Si-Cheng Chen , He-Yang Long , You-Hang Liu , De-Wen Cao , Wei Wang , Ming Qi

The primary challenge in the study of explosive astrophysical transients is their detection and characterisation using multiple messengers. For this purpose, we have developed a new data-driven discovery framework, based on deep learning.…

High Energy Astrophysical Phenomena · Physics 2020-05-14 Iftach Sadeh

Bolometers have proven to be very good detectors to search for rare processes thanks to their excellent energy resolution and their low intrinsic background. Further active background rejection can be obtained by the simultaneous readout of…

The application of Bayesian Neural Networks(BNN) to discriminate neutrino events from backgrounds in reactor neutrino experiments has been described in Ref.\cite{key-1}. In the paper, BNN are also used to identify neutrino events in reactor…

Data Analysis, Statistics and Probability · Physics 2009-03-12 Ye Xu , WeiWei Xu , YiXiong Meng , Bin Wu

Pulse-shape discrimination (PSD) in high-purity germanium (HPGe) detectors is central to rare-event searches such as neutrinoless double-beta decay (0vBB), yet conventional approaches compress each waveform into a small set of summary…

High Energy Physics - Experiment · Physics 2026-03-09 Marta Babicz , Saúl Alonso-Monsalve , Alain Fauquex , Laura Baudis

A novel Compton Scanner setup has been built, commissioned and operated at the Max-Planck-Institute for Physics in Munich to collect pulses from bulk events in high-purity germanium detectors for pulse shape studies. In this fully automated…

Instrumentation and Detectors · Physics 2022-10-25 I. Abt , C. Gooch , F. Hagemann , L. Hauertmann , D. Hervas Aguilar , X. Liu , O. Schulz , M. Schuster , A. J. Zsigmond

Most classification algorithms used in high energy physics fall under the category of supervised machine learning. Such methods require a training set containing both signal and background events and are prone to classification errors…

Data Analysis, Statistics and Probability · Physics 2015-06-03 Mikael Kuusela , Tommi Vatanen , Eric Malmi , Tapani Raiko , Timo Aaltonen , Yoshikazu Nagai

To increase by a major step the present sensitivity for dark matter and double beta decay search, a new project is suggested, which would operate 'naked' GErmanium detectors in liquid NItrogen as shielding in an Underground Setup (GENIUS).…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. V. Klapdor-Kleingrothaus , L. Baudis , G. Heusser , B. Majorovits , H. Paes

In the search for a monochromatic peak as the signature of neutrinoless double beta decay an excellent energy resolution and an ultra-low background around the $Q$-value of the decay are essential. The LEGEND-200 experiment performs such a…

Instrumentation and Detectors · Physics 2023-02-02 L. Baudis , G. Benato , E. M. Bond , P. -J. Chiu , S. R. Elliott , R. Massarczyk , S. Meijer , Y. Müller
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