Using b-tagging to enhance the SUSY reach of the CERN Large Hadron Collider

Details Using b-tagging to enhance the SUSY reach of the CERN Large Hadron Collider Using b-tagging to enhance the SUSY reach of the CERN Large Hadron Collider

2005-06-14

arxiv.org/abs/hep-ph/0506142v1

Phys.Rev.D72:035009,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 1 figure

Scientific paper

10.1103/PhysRevD.72.035009

Assuming that supersymmetry is realized with parameters in the hyperbolic branch/focus point (HB/FP) region of the minimal supergravity (mSUGRA) model, we show that by searching for multijet + missing E_T events with tagged b jets the reach of experiments at the LHC may be extended by as much as 20% from current projections. The reason for this is that gluino decays to third generation quarks are enhanced because the lightest neutralino has substantial higgsino components. Although we were motivated to perform this analysis because the HB/FP region is compatible with the recent determination of the relic density of cold dark matter, our considerations may well have a wider applicability since decays of gluinos to third generation quarks are favoured in a wide variety of models.

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