[seminar] J. Zupan: Hidden Higgs Decaying to Lepton Jets

[Kresimir Kumericki]

Prirodoslovno-matematicki fakultet
FIZICKI ODSJEK 
Bijenicka c. 32, Zagreb, Hrvatska

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                     SEMINAR  TEORIJSKE  FIZIKE
(Zajednicki seminari Fizickog odsjeka PMF-a te Odjela za fiziku IRB-a)

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Hidden Higgs Decaying to Lepton Jets

dr. Jure Zupan

Faculty of Mathematics and Physics, University of Ljubljana
and 
J. Stefan Institute, Ljubljana  


Datum: 7. svibnja 2010. (petak)
Vrijeme: 11 sati c.t.
Mjesto: PMF, Fizicki odsjek, Bijenicka c. 32, F-201


Sazetak:

The Higgs and some of the Standard Model superpartners may have been
copiously produced at LEP and the Tevatron without being detected. I
will present a novel scenario of this type in which the Higgs decays
predominantly into a light hidden sector either directly or through
light SUSY states. Subsequent cascades increase the multiplicity of
hidden sector particles which, after decaying back into the Standard
Model, appear in the detector as clusters of collimated leptons known as
lepton jets. The Higgs decaying to lepton jets can be hidden when the
event topology mimics that of hadronic backgrounds, so that as many as
104 leptonic Higgs and SUSY decays may be hiding in the LEP and Tevatron
data.  



Voditelj seminara:
dr. Kresimir Kumericki (kkumer at phy.hr)