Sbottom signature of supersymmetric golden region

Honglei Li, Will Parker, Zongguo Si, Shufang Su

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The experimental search limit on the Higgs boson mass points to a “golden region” in the Minimal Supersymmetric Standard Model parameter space in which the fine-tuning in the electroweak sector is minimized. One of the sbottoms is relatively light since its mass parameter is related to that of the stop. The decay products of the light sbottom typically include a W boson and a b jet. We studied the pair production of the light sbottoms at the Large Hadron Collider and examined its discovery potential via collider signature of 4 jets + 1 lepton + missing E<inf>T</inf>. Such channel differs from conventional sbottom searches of either b<inf>1</inf> → bχ<sup>0</sup><inf>2</inf> → b<sup>l+l</sup>−χ<sup>0</sup><inf>1</inf> or b<inf>1</inf> → tχ<sup>−</sup><inf>1</inf> with reconstructed top quark. We analyzed the Standard Model backgrounds for this channel and developed a set of cuts to identify the signal and suppress the backgrounds. We showed that with 100 fb<sup>−1</sup> integrated luminosity, a significance level of 5–6 σ could be reached for the light sbottom discovery at the LHC.

Original languageEnglish (US)
Article number1584
JournalEuropean Physical Journal C
Volume71
Issue number3
DOIs
StatePublished - 2011

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signatures
Bosons
Colliding beam accelerators
pair production
Higgs bosons
leptons
Luminance
sectors
bosons
Tuning
tuning
luminosity
quarks
decay
products

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Sbottom signature of supersymmetric golden region. / Li, Honglei; Parker, Will; Si, Zongguo; Su, Shufang.

In: European Physical Journal C, Vol. 71, No. 3, 1584, 2011.

Research output: Contribution to journalArticle

Li, Honglei ; Parker, Will ; Si, Zongguo ; Su, Shufang. / Sbottom signature of supersymmetric golden region. In: European Physical Journal C. 2011 ; Vol. 71, No. 3.
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