Search for Randall-Sundrum gravitons in the diphoton channel at CDF
Name
Aaltonen-2011-Search for Randall-S.pdf
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Makhoul, Khaldoun
Paus, Christoph M. E.
Bauer, Gerry P
Date Issued
January 2011
Journal
Physical review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Search for Randall-Sundrum gravitons in the diphoton channel at CDF.” Physical Review D 83.1 (2011) : n. pag. © 2011 American Physical Society
Version
Final published version
Abstract
We report on a search for new particles in the diphoton channel using a data sample of pp̅ collisions at √s=1.96 [square root of s-1.96] TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4 fb-1 [fb superscript -1]. The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459 GeV/c2 [GeV/c superscript 2]and 963 GeV/c2 GeV/c superscript 2], at the 95% confidence level, for coupling parameters (k/M̅ Pl) [k/M̅ subscript P1] of 0.01 and 0.1, respectively.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.83.011102
