Search for Randall-Sundrum gravitons in the diphoton channel at CDF
Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, Khaldoun; Paus, Christoph M. E.; Bauer, Gerry P
DownloadAaltonen-2011-Search for Randall-S.pdf (284.3Kb)
PUBLISHER_POLICY
Publisher Policy
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.
Terms of use
Metadata
Show full item recordAbstract
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.
Date issued
2011-01Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
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
ISSN
1550-7998
1550-2368