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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We examine the prospects for detecting light charged higgsinos that areexpected to be a necessary feature of natural SUSY models via $pp\to{\widetilde W}^\pm{\widetilde W}_1^\pm jj+X$ processes arising dominantly from$W^\pm W^\pm$ fusion at LHC13. The signal will be a pair of same-sign leptons($e$ or $\mu$) in events with two relatively forward, hemispherically-separatedjets with a large rapidity gap. We find that even though the higgsinos have afull-strength $SU(2)$ gauge couplings to $W$-bosons, the LHC13 cross sectionfor the production of same sign higgsino pairs is smaller than 0.02 fb overmost of the interesting range of natural SUSY parameters, even before leptonicbranching fractions of the chargino are included. This cross section isstrongly suppressed because the two neutral Majorana higgsinos can be combinedinto a single Dirac neutralino if the bino and the winos are much heavier thanthe higgsinos, as is the case in natural SUSY models: in this limit, higgsinocouplings to $W$-bosons exhibit an emergent (approximate) $U(1)_{\rm ino}$global symmetry that suppresses same sign higgsino production by vector bosonfusion. We conclude that this channel is not a viable way to search for naturalSUSY even at the high luminosity upgrade of the Large Hadron Collider.

Same-sign Higgsino Production at the CERN LHC: How Not to Hunt for Natural Supersymmetry