Search for Pair Production of Supersymmetric Top Quarks in Dilepton Events from p anti-p Collisions at S**(1/2) = 1.96 TeV
Dec, 20098 pages
Published in:
- Phys.Rev.Lett. 104 (2010) 251801
e-Print:
- 0912.1308 [hep-ex]
Report number:
- FERMILAB-PUB-09-614-E
Experiments:
Citations per year
Abstract: (arXiv)
We present the results of a search for pair production of the supersymmetric partner of the top quark (the stop quark ) decaying to a -quark and a chargino \chargino with a subsequent \chargino decay into a neutralino \neutralino, lepton , and neutrino . Using a data sample corresponding to 2.7 fb of integrated luminosity of collisions at TeV collected by the CDF II detector, we reconstruct the mass of candidate stop events and fit the observed mass spectrum to a combination of standard model processes and stop quark signal. We find no evidence for \pairstop production and set 95% C.L. limits on the masses of the stop quark and the neutralino for several values of the chargino mass and the branching ratio {\cal B}(\chargino\to\neutralino\ell^{\pm}\nu).Note:
- Accepted to Phys. Rev. Lett
- 12.60.Jv
- 14.80.Ly
- 14.65.Ha
- anti-p p: interaction
- chargino: mass
- stop: pair production
- stop: mass
- neutralino: mass
- chargino: branching ratio
- supersymmetry
References(24)
Figures(3)