We report on a search for new particles in the diphoton channel using a data sample of p (p) over bar collisions at root 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/((M) over bar (Pl))) of 0.01 and 0.1, respectively.

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

CIOCCI, MARIA AGNESE;DONATI, SIMONE;F. Ruffini;
2011-01-01

Abstract

We report on a search for new particles in the diphoton channel using a data sample of p (p) over bar collisions at root 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/((M) over bar (Pl))) of 0.01 and 0.1, respectively.
2011
T., Aaltonen; B., Álvarez González; S., Amerio; D., Amidei; A., Anastassov; A., Annovi; J., Antos; G., Apollinari; J., Appel; A., Apresyan; T., Arisaw...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/828697
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