SUSY Digs up a Buried Higgs

Details SUSY Digs up a Buried Higgs SUSY Digs up a Buried Higgs

2010-12-06

arxiv.org/abs/1012.1316v2

Phys.Rev.D83:095018,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 7 figures, references added

Scientific paper

10.1103/PhysRevD.83.095018

The Higgs boson may dominantly decay to 4 light jets through a light pseudo-scalar intermediary: h -> 2 eta -> 4j, making reconstruction at the LHC particularly challenging. We explore the phenomenology of such "Buried Higgs" scenarios in which the primary discovery channel of the Higgs is in cascade decays of superpartners. QCD backgrounds that would otherwise overwhelm the Higgs decay are suppressed by the requirement of high p_T jets and large missing transverse momentum that are the typical signatures of TeV scale supersymmetry. Utilizing jet substructure techniques, we find that for buried Higgses in the 100-120 GeV range, a 5-sigma discovery can be expected with roughly 10-25 inverse fb of data at E_CM = 14 TeV. For lighter Higgs bosons, the signal is contaminated by hadronically decaying W bosons, and discovery remains an unsolved challenge.

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