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Request ID:
1205.0032
Analysis:
Search for a Standard Model Higgs in the H->ZZ->llvv decay channel with 4.7 fb−1 with the ATLAS detector
Status:
Active
Requester:
poplar
Recast Audience:
all
Model Name:
Invisible Higgs
Selected Subscriber(s):
poplar
Fri, 05/18/2012 - 03:19 - Activated
Request Description and Potential
Reason for request:
The LHC is well on track toward the discovery or exclusion of a light Standard Model-like Higgs boson. Such a Higgs has a very small SM width and can easily have large branching fractions to physics beyond the SM, making Higgs decays an excellent opportunity to observe new physics. Decays into collider-invisible particles are particularly interesting as they are theoretically well motivated and relatively clean experimentally. An invisible Higgs can be produced at the LHC in association with a Z boson. With the Z boson decaying to two leptons, the final state is identical to the existing search for a Standard Model Higgs in the H->ZZ->llvv decay channel.
Additional Information:
See the paper arXiv:1112.4496 by Yang Bai, Patrick Draper and Jessie Shelton for a RECAST done by theorists.
Request Parameter Points
Run Condition:
7 TeV
Parameter Point1:
Mh=125 GeV
LHE File:
  Must subscribe and accept request to download file
# of events:
10000
Reference Cross Section:
19.8 (fb)

Comments

poplar

Fri, 05/18/2012 - 03:22

This cross section is calculated after taking into account the leptonic decay branching ratio of the Z boson and 100% invisible decay branching ratio of the Higgs boson.

joshwekang2015

Tue, 05/12/2015 - 19:05

Every section needs to ponder a lot of things. - <a href="http://www.homecomingmagazine.com/article/heart-of-the-matter-reba-rambo-mcguire/">Reba Rambo-McGuire</a>