Publications [#307853] of Ashutosh V. Kotwal

Papers Published
  1. Collaboration, AVKWTAEACDF, Search for High Mass Resonances Decaying to Muon Pairs in √s=1.96  TeV pp̅ Collisions, Physical Review Letters, vol. 106 no. 121801 (March, 2011), pp. 7 [doi] .

    We present a search for a new narrow, spin-1, high mass resonance decaying to μ(+)μ⁻+X, using a matrix-element-based likelihood and a simultaneous measurement of the resonance mass and production rate. In data with 4.6 fb⁻¹ of integrated luminosity collected by the CDF detector in pp collisions at √s=1960 GeV, the most likely signal cross section is consistent with zero at 16% confidence level. We therefore do not observe evidence for a high mass resonance and place limits on models predicting spin-1 resonances, including M>1071 GeV/c² at 95% confidence level for a Z' boson with the same couplings to fermions as the Z boson.