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In the High-Level Trigger (HLT) of both electron-positron and hadron collision experiments, the tracking process for large-volume gaseous detectors typically consumes a latency of hundreds of milliseconds. Upgrades of existing experiments…

Instrumentation and Detectors · Physics 2026-05-18 Pengkun Jia , Zhujun Fang , Hang Zhou , Yuhe Huang , Changqing Feng , Jianbei Liu

We present the results of an R&D study for a specialized processor capable of precisely reconstructing events with hundreds of charged-particle tracks in pixel and silicon strip detectors at $40\,\rm MHz$, thus suitable for processing LHC…

Recent innovations focused around {\em parallel} processing, either through systems containing multiple processors or processors containing multiple cores, hold great promise for enhancing the performance of the trigger at the LHC and…

Computational Physics · Physics 2015-06-17 V. Halyo , P. LeGresley , P. Lujan , V. Karpusenko , A. Vladimirov

If a signal for physics beyond the Standard Model is observed at the Tevatron collider or LHC, we will be eager to interpret it. Because only certain observables can be studied at a hadron collider, it will be difficult or impossible to…

High Energy Physics - Phenomenology · Physics 2007-05-23 AseshKrishna Datta , Gordon L. Kane , Manuel Toharia

Anomaly detection is a promising, model-agnostic strategy to find physics beyond the Standard Model. State-of-the-art machine learning methods offer impressive performance on anomaly detection tasks, but interpretability, resource, and…

High Energy Physics - Phenomenology · Physics 2024-07-12 Nathaniel Craig , Jessica N. Howard , Hancheng Li

The LHCb experiment is starting to take data in Run 3 with a new DAQ system, capable of performing complete event reconstruction at the full LHC collision rate. One novel opportunity offered by this system is triggering on long-lived…

High Energy Physics - Experiment · Physics 2024-05-28 Lorenzo Pica

The trigger selection capabilities of the ATLAS detector have been significantly enhanced for the LHC Run- 2 in order to cope with the higher event rates and with the large number of simultaneous interactions (pile-up) per protonproton…

High Energy Physics - Experiment · Physics 2020-09-18 Pierre-Hugues Beauchemin

This article discusses the techniques used to select online promising events at high energy and high luminosity colliders. After a brief introduction, explaining some general aspects of triggering, the more specific implementation options…

Instrumentation and Detectors · Physics 2009-04-16 Hans Peter Beck

In this talk I will present the work that we did in \cite{1}\cite{2}\cite{3}\cite{4}\cite{5} related to observed lepton universality violation by Babar, Belle and LHCb in R($D^{(*)}$) and $R_{K^{(*)}}$ as well as the reported deviation in…

High Energy Physics - Phenomenology · Physics 2019-09-04 Lobsang Dhargyal

Using variational autoencoders trained on known physics processes, we develop a one-sided threshold test to isolate previously unseen processes as outlier events. Since the autoencoder training does not depend on any specific new physics…

High Energy Physics - Experiment · Physics 2019-06-14 Olmo Cerri , Thong Q. Nguyen , Maurizio Pierini , Maria Spiropulu , Jean-Roch Vlimant

We study the signal of long-lived sterile neutrino at the LHC produced through the decay of the $W$ boson. It decays into charged lepton and jets. The characteristic signature is a hard prompt lepton and a lepton from the displaced decay of…

High Energy Physics - Phenomenology · Physics 2019-07-29 Jia Liu , Zhen Liu , Lian-Tao Wang , Xiao-Ping Wang

The anticipated physics program at an high energy e+e- linear collider places special emphasis on the accuracy in extrapolating charged particle tracks to their production vertex to tag heavy quarks and leptons. This paper reviews physics…

Instrumentation and Detectors · Physics 2015-05-20 Marco Battaglia

We argue that it is possible to address the deeper LHC Inverse Problem, to gain insight into the underlying theory from LHC signatures of new physics. We propose a technique which may allow us to distinguish among, and favor or disfavor,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gordon L. Kane , Piyush Kumar , Jing Shao

A sophisticated trigger system, capable of real-time track reconstruction, is used in the ATLAS experiment to select interesting events in the proton-proton collisions at the Large Hadron Collider at CERN. A set of $b$-jet triggers was…

High Energy Physics - Experiment · Physics 2015-06-03 Andrea Coccaro

Measurements of light-flavour particle production in small collision systems at the LHC energies have shown the onset of features that resemble what is typically observed in nucleus-nucleus collisions. New results on the (multi-)strange…

High Energy Physics - Experiment · Physics 2024-10-07 Lucia Anna Tarasovicova

Long-lived particles can manifest themselves at the LHC via "displaced vertices" - several charged tracks originating from a position separated from the proton interaction point by a macroscopic distance. Here we demonstrate a potential of…

High Energy Physics - Phenomenology · Physics 2019-10-23 Kyrylo Bondarenko , Alexey Boyarsky , Maksym Ovchynnikov , Oleg Ruchayskiy , Lesya Shchutska

If physics beyond the Standard Model contains metastable new particle states, its signatures may manifest themselves at the LHC through the presence of displaced vertices or displaced tracks. Such signatures are common in low-scale…

High Energy Physics - Phenomenology · Physics 2011-10-10 Michael Park , Yue Zhao

This paper discusses model-agnostic searches for new physics at the Large Hadron Collider (LHC) using anomaly-detection techniques for the identification of event signatures that deviate from the Standard Model (SM). We investigate anomaly…

High Energy Physics - Phenomenology · Physics 2022-09-26 S. V. Chekanov , W. Hopkins

We discuss possible implications of Exotic Stringy instantons for Baryon-violating signatures in future colliders. In particular, we discuss high-energy quarks collisions and $\Lambda-\bar{\Lambda}$ transitions. In principle,…

High Energy Physics - Phenomenology · Physics 2017-10-04 Andrea Addazi , Xian-Wei Kang , Maxim Yu. Khlopov

The Large Hadron Collider promises to discover new physics beyond the Standard Model. An exciting possibility is the formation of string resonances at the TeV scale. In this article, we show how string resonances may be detected at the LHC…

High Energy Physics - Phenomenology · Physics 2009-09-02 Arunava Roy , Marco Cavaglia
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