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The possibility to simulate lepton number violating supersymmetric models has been introduced into the recently updated PYTHIA event generator, now containing 1278 decay channels of SUSY particles into SM particles via lepton number…

High Energy Physics - Phenomenology · Physics 2009-12-15 P. Z. Skands

Conventional supersymmetry searches rely on large missing momentum and, on that account, are unsuitable for discovering superpartners nearly degenerate with the LSP. Such "compressed regions" are best probed by dedicated strategies that…

High Energy Physics - Phenomenology · Physics 2016-12-14 Antonio Delgado , Adam Martin , Nirmal Raj

A search for supersymmetry (SUSY) is performed in final states comprising one or more jets and missing transverse momentum using data from proton-proton collisions at a centre-of-mass energy of 13 TeV. The data were recorded with the CMS…

High Energy Physics - Experiment · Physics 2018-05-23 CMS Collaboration

This paper reviews some of the most recent results from CDF and D0 experiments on searches for supersymmetry (SUSY) at the Tevatron. We focus on searches for chargino/neutralino, stop, sbottom, and long lived massive SUSY particles, on data…

High Energy Physics - Experiment · Physics 2007-05-23 Song Ming Wang

The realization that supersymmetry (SUSY), if softly broken at the weak scale, can stabilize the Higgs sector led many authors to explore the role it may play in particle physics. It was widely anticipated that superpartners would reveal…

High Energy Physics - Phenomenology · Physics 2020-12-30 Xerxes Tata

In anticipation of data from the Large Hadron Collider (LHC) and the potential discovery of supersymmetry, in this work we seek an answer to the following: What are the chances that supersymmetry will be found at the LHC? Will the LHC data…

High Energy Physics - Phenomenology · Physics 2010-03-19 Csaba Balazs , Daniel Carter

Supersymmetry (SUSY) is a complete and renormalisable candidate for an extension of the Standard Model. At an energy scale not too far above the electroweak scale it would solve the hierarchy problem of the SM Higgs boson, dynamically…

High Energy Physics - Experiment · Physics 2015-06-11 Philip Bechtle , Tilman Plehn , Christian Sander

We discuss singularity variables which are properly suited for analyzing the kinematics of events with missing transverse energy at the LHC. We consider six of the simplest event topologies encountered in studies of leptonic W-bosons and…

High Energy Physics - Phenomenology · Physics 2020-04-10 Konstantin T. Matchev , Prasanth Shyamsundar

We explore the impact of current (7+8 TeV) and future (14 TeV) LHC searches on the range of viable sparticle spectra within the 19/20 - dimensional phenomenological MSSM (pMSSM). Considering both neutralino and gravitino LSPs, we compare…

High Energy Physics - Phenomenology · Physics 2014-11-13 Matthew Cahill-Rowley

A search for new long-lived particles decaying to leptons is presented using proton-proton collisions produced by the LHC at sqrt(s) = 8 TeV. Data used for the analysis were collected by the CMS detector and correspond to an integrated…

High Energy Physics - Experiment · Physics 2015-03-05 CMS Collaboration

The razor approach to search for R-parity conserving supersymmetric particles is described in detail. Two analyses are considered: an inclusive search for new heavy particle pairs decaying to final states with at least two jets and missing…

High Energy Physics - Experiment · Physics 2014-12-08 The CMS Collaboration

Searches for new physics in events with hadronic jets, missing transverse energy, and two leptons of which at least one is a hadronically decaying tau are presented. The result is based on a data sample corresponding to an integrated…

High Energy Physics - Experiment · Physics 2019-08-13 Matthias Edelhoff

We examine the prospects for testing SO(10) Yukawa-unified supersymmetric models during the first year of LHC running at \sqrt{s}= 7 TeV, assuming integrated luminosity values of 0.1 to 1 fb^-1. We consider two cases: the Higgs splitting…

High Energy Physics - Phenomenology · Physics 2010-04-23 Howard Baer , Sabine Kraml , Andre Lessa , Sezen Sekmen

A search for strongly produced supersymmetric particles is conducted using signatures involving multiple energetic jets and either two isolated leptons ($e$ or $\mu$) with the same electric charge, or at least three isolated leptons. The…

High Energy Physics - Experiment · Physics 2014-08-21 ATLAS Collaboration

We investigate the discovery potential of the LHC experiments for R-parity violating supersymmetric models with a stau as the lightest supersymmetric particle (LSP) in the framework of minimal supergravity. We classify the final states…

High Energy Physics - Phenomenology · Physics 2011-02-25 K. Desch , H. K. Dreiner , S. Fleischmann , S. Grab , P. Wienemann

An inclusive search for low mass SUSY using the top plus missing transverse energy signature at CMS is presented. A 5$\sigma$ excess can be observed with $\sim$250 pb$^{-1}$ at a particular low mass SUSY point. With the same analysis…

High Energy Physics - Phenomenology · Physics 2008-11-26 Saeid Paktinat Mehdiabadi

A search is presented for supersymmetry in all-hadronic events with missing transverse momentum and tagged top quarks. The data sample was collected by the CMS detector at the LHC and corresponds to an integrated luminosity of 2.3 inverse…

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

The results of a search for supersymmetry in events with large missing transverse momentum and heavy flavour jets using an integrated luminosity corresponding to 2.05 fb^-1 of pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS…

High Energy Physics - Experiment · Physics 2012-08-27 ATLAS Collaboration

A search for supersymmetry is presented based on proton-proton collision events containing identified hadronically decaying top quarks, no leptons, and an imbalance $p_\mathrm{T}^\text{miss}$ in transverse momentum. The data were collected…

High Energy Physics - Experiment · Physics 2018-02-14 CMS Collaboration

The basic aim of physics studies at the LHC is to unravel the mechanism responsible for the spontaneous symmetry breaking in the Standard Model (SM). In the currently accepted theoretical picture, this translates into finding `direct'…

High Energy Physics - Phenomenology · Physics 2017-08-23 Rohini M. Godbole