Location of Repository

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

### Abstract

8 pages, 4 figures, submitted to Phys.Rev.D. Rapid CommunicationsWe 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

Topics: 12.38.Qk 13.85.Rm 13.85.Qk, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], [ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
Publisher: American Physical Society
Year: 2011
DOI identifier: 10.1103/PhysRevD.83.011102
OAI identifier: oai:HAL:in2p3-00547410v1
Provided by: Hal-Diderot