Mini-Split

By A. Arvanitaki, N. Craig, S. Dimopoulos, G. Villadoro. Journal of High Energy Physics, 2012

331 citations recorded by the source corpus.

The lack of evidence for new physics beyond the standard model at the LHC points to a paucity of new particles near the weak scale. This suggests that the weak scale is tuned and that supersymmetry, if present at all, is realized at higher energies. The measured Higgs mass constrains the scalar sparticles to be below 105 TeV, while gauge coupling unification favors Higgsinos below 100 TeV. Nevertheless, in many models gaugino masses are suppressed and remain within reach of the LHC. Tuning the weak scale and the renormalization group evolution of the scalar masses constrain Split model building. Due to the small gaugino masses, either the squarks or the up-higgs often run tachyonic; in the latter case, successful electroweak breaking requires heavy higgsinos near the scalar sparticles. We discuss the consequences of tuning the weak scale and the phenomenology of several models of Split supersymmetry including anomaly mediation, U(1)B−L mediation, and Split gauge mediation.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b66175e97c6fcf5a1ce6ee043c51942b204a8d6a

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Citations in the corpus

Neutralino dark matter at 14 TeV and 100 TeV (2014, background): “At hadron colliders such as the Large Hadron Collider (LHC), the pair production of colored superpartners, squarks and gluinos, are the dominant SUSY processes.”
Natural tuning: towards a proof of concept (2013, background): “(Mini)split supersymmetry is a good example of predictive model building inspired by these considerations [7–10].”
SusyHD: Higgs mass Determination in Supersymmetry (2015, background): “Gauge coupling unification further prefers values of μ below O(10) TeV [28].”
Search for massive, long-lived particles using multitrack displaced vertices or displaced lepton pairs in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector (2015, background): “supersymmetry [5,6], gluino (~ g) decay is suppressed by the high mass of the squarks.”
Physics opportunities of a 100 TeV proton–proton collider (2015, background): “Another interesting possibility is minimally split supersymmetry [40, 41, 42, 43, 44, 45].”
The State of Supersymmetry after Run I of the LHC (2013, background): “Such ideas about split supersymmetry predate LHC limits [91, 92], but have enjoyed a recent revival in light of the Higgs mass measurement [9, 93].”
Doubling down on naturalness with a supersymmetric twin Higgs (2013, background): “In general at least the gluino mass must be within a factor of ∼ 2 of the lightest stop mass to avoid introducing additional fine-tuning to obtain a separation after RG flow [18].”
Higgs Physics at the HL-LHC and HE-LHC (2019, background): “The presence of long-lived particles (LLP) can be a striking feature of many new physics models [802, 803, 804, 805, 806, 807, 808, 809, 810, 811, 812, 813].”
In wino veritas? Indirect searches shed light on neutralino dark matter (2013, background): “This is suggestive of a split spectrum, with scalar superpartners heavy relative to the gauginos (except for a single Higgs doublet, tuned to be light) [17–20].”