Search for anomalous production of events with a photon, jet, b-quark jet, and missing transverse energy
Name
Aaltonen-2009-Search for anomalous.pdf
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Author(s)
Xie, Si
Knuteson, Bruce O.
Henderson, C.
Hahn, Kristian Allan
Gomez-Ceballos, Guillelmo
Choudalakis, Georgios
Paus, Christoph M. E.
Makhoul, Khaldoun
Goncharov, Maxim
Bauer, Gerry P
Date Issued
September 2009
Journal
Physical Review D
Publisher
American Physical Society
Citation
CDF Collaboration et al. “Search for anomalous production of events with a photon, jet, b-quark jet, and missing transverse energy.” Physical Review D 80.5 (2009): 052003. © 2009 The American Physical Society
Version
Final published version
Abstract
We present a signature-based search for the 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 (E̸[subscript T]). The search uses data corresponding to 2.0 fb[superscript -1] of integrated luminosity from pp̅ collisions at a center-of-mass energy of √s=1.96 TeV, collected with the CDF II detector at the Fermilab Tevatron. From 6.697 47×10[superscript 6] events with a photon candidate with transverse energy E[subscript T]>25 GeV, we find 617 events with E̸[subscript T]>25 GeV and two or more jets with E[subscript T]>15 GeV, at least one identified as originating from a b quark, versus an expectation of 607±113 events. Increasing the requirement on E̸[subscript T] to 50 GeV, we find 28 events versus an expectation of 30±11 events. We find no indications of non-standard-model phenomena.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevD.80.052003
