Search for anomalous production of events with a photon, jet, b-quark jet, and missing transverse energy
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; ... Show more Show less
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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.
Date issued
2009-09Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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
ISSN
1550-2368
1550-7998