Search for Anomalous Production of Events with a Photon, Jet, b-quark Jet, and Missing Transverse Energy
arXiv:0905.0231 · doi:10.1103/PhysRevD.80.052003
Abstract
We present a signature-based search for anomalous production of events containing a photon, two jets, of which at least one is identified as originating from a b quark, and missing transverse energy. The search uses data corresponding to 2.0/fb of integrated luminosity from p-pbar collisions at a center-of-mass energy of sqrt(s)=1.96 TeV, collected with the CDF II detector at the Fermilab Tevatron. From 6,697,466 events with a photon candidate with transverse energy ET> 25 GeV, we find 617 events with missing transverse energy > 25 GeV and two or more jets with ET> 15 GeV, at least one identified as originating from a b quark, versus an expectation of 607+- 113 events. Increasing the requirement on missing transverse energy to 50 GeV, we find 28 events versus an expectation of 30+-11 events. We find no indications of non-standard-model phenomena.
Submitted to Phys. Rev. D
References in corpus (9)
- PYTHIA 6.4 Physics and Manual
- MadGraph/MadEvent v4: The New Web Generation
- Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
- Global Search for New Physics with 2.0/fb at CDF
- Model-Independent and Quasi-Model-Independent Search for New Physics at CDF
- First Run II Measurement of the W Boson Mass
- Search for Heavy, Long-Lived Particles that Decay to Photons at CDF II
- Search for New Physics in Lepton + Photon + X Events with 929 pb-1 of ppbar Collisions at roots = 1.96 TeV
- Search for New Physics in Lepton + Photon + X Events with L=305 pb-1 of ppbar Collisions at roots=1.96 TeV