# Search for Randall-Sundrum gravitons in the diphoton channel at CDF

Abstract : We report on a search for new particles in the diphoton channel using a data sample of $p\bar p$ collisions at $\sqrt{s} = 1.96$ TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4 fb$^{-1}$. 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$/c^{2}$ and 963 GeV$/c^{2}$, at the 95% confidence level, for coupling parameters ($k/\bar{M}_{Pl}$) of 0.01 and 0.1 respectively.
Document type :
Journal articles
Domain :

http://hal.in2p3.fr/in2p3-00547410
Contributor : Swarna Bassava <>
Submitted on : Thursday, December 16, 2010 - 11:48:13 AM
Last modification on : Monday, December 14, 2020 - 9:44:27 AM

### Citation

T. Aaltonen, B. Alvarez Gonzalez, S. Amerio, D. Amidei, A. Anastassov, et al.. Search for Randall-Sundrum gravitons in the diphoton channel at CDF. Physical Review D, American Physical Society, 2011, 83, pp.011102. ⟨10.1103/PhysRevD.83.011102⟩. ⟨in2p3-00547410⟩

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