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A search for long-lived particles decaying into jets is presented. Data were collected with the CMS detector at the LHC from proton-proton collisions at a center-of-mass energy of 13 TeV in 2016, corresponding to an integrated luminosity of…

High Energy Physics - Experiment · Physics 2019-02-27 CMS Collaboration

Results of a search for new physics in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 139 fb$^{-1}$ at a…

High Energy Physics - Experiment · Physics 2024-11-22 ATLAS Collaboration

We consider a search strategy for new physics at the Large Hadron Collider which focuses on the signature of many jets and missing transverse energy, but no charged leptons. We show that this signature can be useful in probing a wide class…

High Energy Physics - Phenomenology · Physics 2013-01-01 Jason Kumar

Searches for new phenomena inspired by supersymmetry in final states containing an $e^+e^-$ or $\mu^+\mu^-$ pair, jets, and missing transverse momentum are presented. These searches make use of proton-proton collision data with an…

High Energy Physics - Experiment · Physics 2023-07-04 ATLAS Collaboration

We study the prospect of determining the decay properties of the gluino in the supersymmetric (SUSY) standard model at a 100 TeV future hadron collider. We consider the case where the neutral Wino is the lightest superparticle. In this…

High Energy Physics - Phenomenology · Physics 2021-06-02 So Chigusa , Koichi Hamaguchi , Takeo Moroi , Atsuya Niki , Kosaku Ono

The Majorana nature of neutrinos can be experimentally verified only via {\it lepton-number} violating processes involving charged leptons. We study 36 lepton-number violating ($\lv$) processes from the decays of tau leptons and…

High Energy Physics - Phenomenology · Physics 2015-03-13 Anupama Atre , Tao Han , Silvia Pascoli , Bin Zhang

In supersymmetric models, Winos, partners of the SU(2) gauge bosons, may be the lightest supersymmetric particles (LSPs). For generic parameters, charged and neutral Winos are highly degenerate. Charged Winos travel macroscopic distances,…

High Energy Physics - Phenomenology · Physics 2009-09-15 Jonathan L. Feng , Takeo Moroi , Lisa Randall , Matthew Strassler , Shufang Su

An inclusive search for supersymmetry (SUSY) using the razor variables is performed using a data sample of proton-proton collisions corresponding to an integrated luminosity of 35.9 fb$^{-1}$, collected with the CMS experiment in 2016 at a…

High Energy Physics - Experiment · Physics 2019-03-13 CMS Collaboration

The results of a search for stealth supersymmetry in final states with two photons and jets, targeting a phase space region with low missing transverse momentum ($p_\text{T}^\text{miss}$), are reported. The study is based on a sample of…

High Energy Physics - Experiment · Physics 2024-06-26 CMS Collaboration

Model-independent searches for physics beyond the Standard Model typically focus on invariant masses of two objects (jets, leptons or photons). In this study we explore opportunities for similar model-agnostic searches in multi-body…

High Energy Physics - Phenomenology · Physics 2021-09-09 S. V. Chekanov , S. Darmora , W. Islam , C. E. M. Wagner , J. Zhang

Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb$^{-1}$ of $\sqrt{s}=8$ TeV data collected in 2012 with the ATLAS detector at the LHC.…

High Energy Physics - Experiment · Physics 2015-09-16 ATLAS Collaboration

A model independent method to search for particles of unknown masses in events with missing energy is presented. The only assumption is the topology of the decay chain. The method is tested in events with top pairs decaying leptonically…

High Energy Physics - Phenomenology · Physics 2011-12-16 Georgios Anagnostou

Constraints from searches for squarks and gluinos at the LHC at sqrt{s}=8 TeV are applied to the parameter space of the NMSSM with universal squark/slepton and gaugino masses at the GUT scale, but allowing for non-universal soft Higgs mass…

High Energy Physics - Phenomenology · Physics 2015-06-12 Debottam Das , Ulrich Ellwanger , Ana M. Teixeira

A search is presented for charged, long-lived supersymmetric particles in final states with one or more disappearing tracks. The search is based on data from proton-proton collisions at a center-of-mass energy of 13 TeV collected with the…

High Energy Physics - Experiment · Physics 2024-04-29 CMS Collaboration

We derive Feynman rules for the interactions of a single gravitino with (s)quarks and gluons/gluinos from an effective supergravity Lagrangian in non-derivative form and use them to calculate the hadroproduction cross sections and decay…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Klasen , G. Pignol

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

We explore the implications of 7 TeV LHC searches for a scenario in which one of the stops is the next-to lightest supersymmetric particle (NLSP). The NLSP stop (\tilde{t}_1) is assumed to decay exclusively into neutralino and charm quark.…

High Energy Physics - Phenomenology · Physics 2015-06-03 Bin He , Tong Li , Qaisar Shafi

The ATLAS and CMS collaborations have recently presented results of searches for compressed electroweakinos in final states including soft leptons. These searches are sensitive to mass splittings ranging from quite small values of about 5…

High Energy Physics - Phenomenology · Physics 2024-04-29 Diyar Agin , Benjamin Fuks , Mark D. Goodsell , Taylor Murphy

Results are reported from a search for R-parity violating supersymmetry in proton-proton collision events collected by the CMS experiment at a center-of-mass energy of sqrt(s) = 8 TeV. The data sample corresponds to an integrated luminosity…

High Energy Physics - Experiment · Physics 2017-02-08 CMS Collaboration

Low energy supersymmetric models provide a solution to the hierarchy problem and also have the necessary ingredients to solve two of the most outstanding issues in cosmology: the origin of the baryon asymmetry and the source of dark matter.…

High Energy Physics - Phenomenology · Physics 2009-05-08 M. Carena , A. Freitas , C. E. M. Wagner