Aaltonen, T;
Abulencia, A;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Amerio, S;
... Zucchelli, S; + view all
(2007)
Search for high-mass diphoton states and limits on Randall-Sundrum gravitons at CDF.
PHYS REV LETT
, 99
(17)
, Article 171801. 10.1103/PhysRevLett.99.171801.
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Abstract
We have performed a search for new particles which decay to two photons using 1.2 fb(-1) of integrated luminosity from p (p) over bar collisions at root s = 1.96 TeV collected using the CDF II detector at the Fermilab Tevatron. We find the diphoton mass spectrum to be in agreement with the standard model expectation, and set limits on the cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits for the graviton mass of 230 GeV/c(2) and 850 GeV/c(2), at the 95% confidence level, for coupling parameters (k=(M) over barP(1)) of 0.01 and 0.1, respectively.
Type: | Article |
---|---|
Title: | Search for high-mass diphoton states and limits on Randall-Sundrum gravitons at CDF |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.99.171801 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.99.171801 |
Language: | English |
Additional information: | © 2007 The American Physical Society |
Keywords: | TO-LEADING ORDER, ELECTROMAGNETIC CALORIMETER, HIERARCHY, DETECTOR |
UCL classification: | UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/131681 |
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