English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We examine the top squark (stop) and gluino reach of the proposed 33 TeVenergy upgrade of the Large Hadron Collider (LHC33) in the MinimalSupersymmetric Standard Model (MSSM) with light higgsinos and relatively heavyelectroweak gauginos. In our analysis, we assume that stops decay to higgsinosvia ${\tilde t}_1 \to t {\tilde{Z}}_1$, $\tilde{t}_1 \to t\tilde{Z}_2$ and$\tilde{t}$$_1 \to b\tilde{W}_1$ with branching fractions in the ratio 1:1:2(expected if the decay occurs dominantly via the superpotential Yukawacoupling) while gluinos decay via $\tilde{g}\to t\tilde{t}_1$ or via three-bodydecays to third generation quarks plus higgsinos. These decay patterns aremotivated by models of natural supersymmetry where higgsinos are expected to beclose in mass to $m_Z$, but gluinos may be as heavy as $5 - 6$ TeV and stopsmay have masses up to $\sim 3 $ TeV. We devise cuts to optimize the signalsfrom stop and gluino pair production at LHC33. We find that experiments atLHC33 should be able to discover stops with $> 5\sigma$ significance if$m_{\tilde{t}_1} < 2.3 \ (2.8) \ [3.2]$ TeV for an integrated luminosity of 0.3(1)[3] ab$^{-1}$. The corresponding reach for gluinos extends to 5 (5.5) [6]TeV. These results imply that experiments at LHC33 should be able to discoverat least one of the stop or gluino pair signals even with an integratedluminosity of 0.3 ab$^{-1}$ for natural SUSY models with no worse than 3%electroweak fine-tuning, and quite likely both gluinos and stops for anintegrated luminosity of 3 ab$^{-1}$.

The Reach of the High-Energy LHC for Gluinos and Top Squarks in SUSY Models with Light Higgsinos