Supersymmetry discovery potential of the LHC at $\sqrt{s}=$10 and 14 TeV without and with missing $E_T$

Abstract

We examine the supersymmetry (SUSY) reach of the CERN LHC operating at $\sqrt{s}=10$ and 14 TeV within the framework of the minimal supergravity model. We improve upon previous reach projections by incorporating updated background calculations including a variety of $2\to n$ Standard Model (SM) processes. We show that SUSY discovery is possible even before the detectors are understood well enough to utilize either $E_T^{\mathrm{miss}}$ or electrons in the signal. We evaluate the early SUSY reach of the LHC at $\sqrt{s}=10$ TeV by examining multi-muon plus $\ge 4$ jets and also dijet events with {\it no} missing $E_T$ cuts and show that the greatest reach in terms of $m_{1/2}$ occurs in the dijet channel. The reach in multi-muons is slightly smaller in $m_{1/2}$, but extends to higher values of $m_0$. We find that an observable multi-muon signal will first appear in the opposite-sign dimuon channel, but as the integrated luminosity increases the relatively background-free but rate-limited same-sign dimuon, and ultimately the trimuon channel yield the highest reach. We show characteristic distributions in these channels that serve to distinguish the signal from the SM background, and also help to corroborate its SUSY origin. We then evaluate the LHC reach in various no-lepton and multi-lepton plus jets channels {\it including} missing $E_T$ cuts for $\sqrt{s}=10$ and 14 TeV, and plot the reach for integrated luminosities ranging up to 3000 fb${}^{-1}$ at the SLHC. For $\sqrt{s}=10$ TeV, the LHC reach extends to $m_{gluino}=1.9,2.3,2.8$ and 2.9 TeV for $m_{squark}\sim m_{gluino}$ and integrated luminosities of 10, 100, 1000 and 3000 fb${}^{-1}$, respectively. For $\sqrt{s}=14$ TeV, the LHC reach for the same integrated luminosities is to $m_{gluino}=2.4,\3.1, 3.7$ and 4.0 TeV.

34 pages, 25 figures. Revised projections for the SUSY reach for ab^-1 integrated luminosities, with minor corrections of references and text. 2 figures added. To appear in JHEP

References in corpus (17)

• PYTHIA 6.4 Physics and Manual
• Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics
• Search for squarks and gluinos in events with jets and missing transverse energy using 2.1 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV
• Dijet Searches for Supersymmetry at the LHC
• Spin Dependence of Dark Matter Scattering
• Missing energy look-alikes with 100 pb-1 at the LHC
• Collider signals and neutralino dark matter detection in relic-density-consistent models without universality
• Mainly axion cold dark matter in the minimal supergravity model
• Focus Point SUSY at the LHC Revisited
• Heavy-flavour tagging and the supersymmetry reach of the CERN Large Hadron Collider
• Standard Model backgrounds to supersymmetry searches
• LHC physics: the first one--two year(s)
• Early SUSY discovery at LHC without missing E_T: the role of multi-leptons
• Early SUSY discovery at LHC via sparticle cascade decays to same-sign and multimuon states
• Understanding the Standard Model, as a bridge to the discovery of new phenomena at the LHC
• SUSY backgrounds to Standard Model calibration processes at the LHC
• TASI 2008 lectures on Collider Signals II: E_T^missing signatures and the dark matter connection

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