Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF

Journal Article · Wed Dec 01 04:00:00 EST 2010 · Phys.Rev.D83:011102,2011

OSTI ID:1001379

Aaltonen, T; Adelman, J; Alvarez Gonzalez, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Apresyan, A; Arisawa, T

We report on a search for new particles in the diphoton channel using a data sample of p{bar p} collisions at {radical}s = 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4 fb{sup -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 482 GeV/c{sup 2} and 975 GeV/c{sup 2}, at the 95% confidence level, for coupling parameters (k/{bar M}{sub Pl}) of 0.01 and 0.1 respectively.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1001379
• Report Number(s): FERMILAB-PUB-10-498-E; arXiv eprint number arXiv:1012.2795
• Journal Information: Phys.Rev.D83:011102,2011, Journal Name: Phys.Rev.D83:011102,2011
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CROSS SECTIONS
Experiment-HEP
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
GRAVITONS
LUMINOSITY
PRODUCTION
STANDARD MODEL