Search for top squarks in multijet events with large missing momentum in proton-proton collisions at 8 TeV
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Abstract:
A search for pairs of top squarks decaying to a top quark and a stable, weakly interacting, massive particle
is presented.
The search selects events containing multiple jets, with at least one identified
as originating from a b-quark, and large missing transverse momentum. The search also
employs a novel top quark tagging algorithm for identifying a top quark candidate
decaying hadronically.
It is based on 19.4 fb of proton-proton collision data collected at a center-of-mass energy of
8 TeV by the CMS detector at the Large Hadron Collider. The observed event yields are consistent with the SM expectations.
Assuming both top squarks decay always into a top quark and a weakly interacting, neutral particle~(), the production of top squarks with mass less than 535 GeV is excluded at 95\% confidence-level for masses less than 10 GeV.Note:
- Preliminary results
- Data
- p p: scattering
- stop: pair production
- stop: decay
- WIMP
- transverse momentum: missing-energy
- jet: multiple production
- jet: bottom
- momentum: missing-energy
- top: particle identification
References(77)
Figures(19)
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