Abstract
We present a search for new phenomena in events with two reconstructed bosons and large missing transverse momentum, sensitive to processes , where is an unstable particle decaying as and is undetected. The particles and may be, among other possibilities, fourth-generation neutrinos or supersymmetric particles. We study the final state in which one boson decays to two charged leptons and the second decays hadronically. In data corresponding to an integrated luminosity of from proton-antiproton collisions recorded by the CDF II detector at the Tevatron, with center-of-mass energy of 1.96 TeV, we find agreement between data and standard-model backgrounds. We calculate 95% confidence level upper limits on the cross section of the process ranging from 50 fb to 1 pb, depending on the masses of and .
- Received 5 December 2011
DOI:https://doi.org/10.1103/PhysRevD.85.011104
© 2012 American Physical Society