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I discuss a method to model the instrumental response of the CMS and ATLAS detectors at high transverse missing energies to dominant standard model V+jets backgrounds, where V is a Z, gamma or W, using multi-jet QCD events. The method is…

High Energy Physics - Experiment · Physics 2011-03-08 Victor Pavlunin

Welcome to the 2008 TASI lectures on the exciting topic of `tools and technicalities' (original title). Technically, LHC physics is really all about perturbative QCD in signals or backgrounds. Whenever we look for interesting signatures at…

High Energy Physics - Phenomenology · Physics 2009-02-07 Tilman Plehn

Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum in proton-proton collisions at sqrt(s)=7 TeV are reported. Data collected by the ATLAS experiment at the LHC corresponding to an…

High Energy Physics - Experiment · Physics 2013-06-11 ATLAS Collaboration

A search for new physics using events containing an imbalance in transverse momentum and one or more energetic jets arising from initial-state radiation or the hadronic decay of W or Z bosons is presented. A data sample of proton-proton…

High Energy Physics - Experiment · Physics 2018-06-06 CMS Collaboration

A selection of results for searches for exotic physics at the LHC are presented. These include a search for massive resonances, dark matter with a high energy jet in association with large missing transverse momentum, long-lived neutral…

High Energy Physics - Experiment · Physics 2016-03-29 Michael Sigamani

The results of searches for new physics in events with two same-sign isolated leptons, hadronic jets, and missing transverse energy in the final state are presented. The searches use an integrated luminosity of 35 inverse picobarns of pp…

High Energy Physics - Experiment · Physics 2015-03-19 CMS Collaboration

A search for physics beyond the standard model involving events with one or more photons, jets, and missing transverse energy has been performed by the CMS experiment. The data sample corresponds to an integrated luminosity of 4.93 inverse…

High Energy Physics - Experiment · Physics 2013-04-25 CMS Collaboration

Thus far the LHC experiments have yet to discover beyond-the-standard-model physics. This motivates efforts to search for new physics in model independent ways. In this spirit, we describe procedures for using a variant of the Matrix…

High Energy Physics - Phenomenology · Physics 2014-08-29 Dipsikha Debnath , James S. Gainer , Konstantin T. Matchev

I discuss the basic elements of the process that will lead to the discovery of possible new phenomena at the LHC. We review the status of the tools available to model the Standard Model backgrounds, and the role that such tools can play in…

High Energy Physics - Phenomenology · Physics 2009-01-06 Michelangelo L. Mangano

A search is presented for new particles produced at the LHC in proton-proton collisions at $\sqrt{s} =$ 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to…

High Energy Physics - Experiment · Physics 2021-11-24 CMS Collaboration

With Run II of the LHC having started, the need for high precision theory predictions whose uncertainty matches that of the data to be taken necessitated a range of new developments in Monte-Carlo Event Generators. This talk will give an…

High Energy Physics - Phenomenology · Physics 2016-07-20 Marek Schönherr

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

Search for new physics events at the LHC mostly rely on the assumption that the events are characterized in terms of standard-reconstructed objects such as isolated photons, leptons, and jets initiated by QCD-partons. While such strategy…

High Energy Physics - Phenomenology · Physics 2018-06-12 Amit Chakraborty , Abhishek M. Iyer , Tuhin S. Roy

The prospects of measuring masses, spin and CP properties within Supersymmetry and other beyond the Standard Model extensions at the LHC are reviewed. Emphasis is put on models with missing transverse energy due to undetected particles, as…

High Energy Physics - Experiment · Physics 2008-12-12 Wolfgang Ehrenfeld

The results of a search for new physics in events with two opposite-sign isolated electrons or muons, hadronic activity, and missing transverse energy in the final state are presented. The results are based on analysis of a data sample with…

High Energy Physics - Experiment · Physics 2019-08-13 Daniel Sprenger

Some features of modern simulation tools for high-energy physics are reviewed.

High Energy Physics - Phenomenology · Physics 2007-06-01 Tanju Gleisberg , Stefan Hoeche , Frank Krauss , Radoslaw Matyszkiewicz , Marek Schoenherr , Steffen Schumann , Frank Siegert , Jan Winter

This paper discusses a statistical anomaly-detection method for model-independent searches for new physics in collision events produced at the Large Hadron Collider (LHC). The method requires calculations of $Z$-scores for a large number of…

High Energy Physics - Phenomenology · Physics 2022-08-15 S. V. Chekanov

In this conference paper I introduce a selection of BSM tools and describe their most recent developments. I choose to focus on tools for the reinterpretation of LHC searches, tools that compute dark matter constraints,…

High Energy Physics - Phenomenology · Physics 2021-10-13 Tomás E. Gonzalo

A search for new physics is performed in events with two same-sign isolated leptons, hadronic jets, and missing transverse energy in the final state. The analysis is based on a data sample corresponding to an integrated luminosity of 4.98…

High Energy Physics - Experiment · Physics 2013-01-28 CMS Collaboration

Results are presented for a search for dark matter at the LHC using the signatures of a monojet plus missing transverse energy and a monophoton plus missing transverse energy. The data were collected by the CMS detector at the LHC with pp…

High Energy Physics - Experiment · Physics 2019-08-13 Sarah Alam Malik