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The search for resonant mass bumps in invariant-mass distributions remains a cornerstone strategy for uncovering Beyond the Standard Model (BSM) physics at the Large Hadron Collider (LHC). Traditional methods often rely on predefined…

Despite extensive theoretical motivation for physics beyond the Standard Model (BSM) of particle physics, searches at the Large Hadron Collider (LHC) have found no significant evidence for BSM physics. Therefore, it is essential to broaden…

High Energy Physics - Phenomenology · Physics 2019-03-21 Jack H. Collins , Kiel Howe , Benjamin Nachman

The oldest and most robust technique to search for new particles is to look for `bumps' in invariant mass spectra over smoothly falling backgrounds. We present a new extension of the bump hunt that naturally benefits from modern machine…

High Energy Physics - Phenomenology · Physics 2019-02-12 Jack H Collins , Kiel Howe , Benjamin Nachman

Searches for new physics at the LHC at CERN traditionally use advanced simulations to model Standard Model and new-physics processes in high-energy collisions and compare them with data. The lack of recent direct discoveries, however, has…

High Energy Physics - Experiment · Physics 2025-09-30 Antonio D'Avanzo

Decays of Higgs boson-like particles into multileptons is a well-motivated process for investigating physics beyond the Standard Model (SM). A unique feature of this final state is the precision with which the SM is known. As a result,…

High Energy Physics - Phenomenology · Physics 2023-02-01 Katarzyna Krzyżańska , Benjamin Nachman

A resonance peak in the invariant mass spectrum has been the main feature of a particle at collider experiments. However, broad resonances not exhibiting such a sharp peak are generically predicted in new physics models beyond the Standard…

High Energy Physics - Phenomenology · Physics 2020-02-12 Sunghoon Jung , Dongsub Lee , Ke-Pan Xie

The search for Beyond the Standard Model (BSM) physics is one of the major tasks of the LHC, CERN. In these proceedings, I review the status of searches for Supersymmetry by the ATLAS and CMS collaborations. The efforts in both the hadronic…

High Energy Physics - Experiment · Physics 2008-08-22 Oleg Brandt

A review of the discovery potential of LHC for new phenomena beyond the Standard Model (BSM) other than Supersymmetry in the early phase of running is presented. Topics covered include searches for extra dimensions in different scenarios…

High Energy Physics - Experiment · Physics 2008-08-01 Dimitri Bourilkov

The observation of resonances is unequivocal evidence of new physics beyond the Standard Model at the Large Hadron Collider (LHC). So far, inclusive and model dependent searches have not provided evidence of new resonances, indicating that…

High Energy Physics - Experiment · Physics 2021-11-29 Salah-eddine Dahbi , Joshua Choma , Bruce Mellado , Gaogalalwe Mokgatitswane , Xifeng Ruan , Benjamin Lieberman , Turgay Celik

A method to search for particles of unknown masses in final states with two invisible particles is presented. Searching for final states with missing energy is a challenging task usually performed in the tail of a missing energy related…

High Energy Physics - Phenomenology · Physics 2021-07-28 Georgios Anagnostou

Machine learning--based anomaly detection (AD) methods are promising tools for extending the coverage of searches for physics beyond the Standard Model (BSM). One class of AD methods that has received significant attention is resonant…

Destructive interference between signal and background processes poses a fundamental challenge in searches for top-philic scalar resonances, significantly reducing experimental sensitivity to well-motivated extensions of the Higgs sector.…

High Energy Physics - Phenomenology · Physics 2026-04-29 Diego A. Baron Moreno , Christoph Englert , Yvonne Peters

The discovery potentials of ATLAS and CMS experiments at the Large Hadron Collider (LHC) for Supersimmetry (SUSY), Extra Dimensions (ED), new Gauge Bosons and R-Hadrons are discussed. Beyond Standard-Model (BSM) searches at LHC require a…

High Energy Physics - Experiment · Physics 2011-11-10 Sebastiano Albergo

The Standard Model (SM) of particle physics provides a successful description of elementary particles and their interactions. However, it does not explain phenomena such as the hierarchy problem or the nature of dark matter. Many Beyond the…

High Energy Physics - Experiment · Physics 2026-02-02 Yihui Lai

One of the goals of current particle physics research is to obtain evidence for new physics, that is, physics beyond the Standard Model (BSM), at accelerators such as the Large Hadron Collider (LHC) at CERN. The searches for new physics are…

High Energy Physics - Phenomenology · Physics 2022-07-12 Braden Kronheim , Michelle Kuchera , Harrison Prosper , Alexander Karbo

We propose a data-directed paradigm (DDP) to search for new physics. Focusing on the data without using simulations, exclusive selections which exhibit significant deviations from known properties of the standard model can be identified…

High Energy Physics - Experiment · Physics 2022-04-13 Sergey Volkovich , Federico De Vito Halevy , Shikma Bressler

The main aim of the the Large Hadron Collider (LHC) experiments is to search for exotic particles with masses in the TeV range as predicted by Beyond Standard Model (BSM) theories. However, there is no hint of BSM around TeV scale so far.…

High Energy Physics - Phenomenology · Physics 2024-12-20 Nilanjana Kumar

To gain a comprehensive view of what the LHC tells us about physics beyond the Standard Model (BSM), it is crucial that different BSM-sensitive analyses can be combined. But in general, search analyses are not statistically orthogonal, so…

High Energy Physics - Phenomenology · Physics 2023-04-19 Jack Y. Araz , Andy Buckley , Benjamin Fuks , Humberto Reyes-Gonzalez , Wolfgang Waltenberger , Sophie L. Williamson , Jamie Yellen

The interpretation of Large Hadron Collider (LHC) data in the framework of Beyond the Standard Model (BSM) theories is hampered by the need to run computationally expensive event generators and detector simulators. Performing statistically…

High Energy Physics - Phenomenology · Physics 2016-11-14 Gianfranco Bertone , Marc Peter Deisenroth , Jong Soo Kim , Sebastian Liem , Roberto Ruiz de Austri , Max Welling

Much hope for finding new physics phenomena at microscopic scale relies on the observations obtained from High Energy Physics experiments, like the ones performed at the Large Hadron Collider (LHC). However, current experiments do not…

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