Repository logo
 
Loading...
Thumbnail Image
Publication

Search for signatures of extra dimensions in the diphoton mass spectrum at the Large Hadron Collider

Use this identifier to reference this record.
Name:Description:Size:Format: 
1.pdf413.8 KBAdobe PDF Download

Advisor(s)

Abstract(s)

A search for signatures of extra dimensions in the diphoton invariant-mass spectrum has been performed with the CMS detector at the LHC. No excess of events above the standard model expectation is observed using a data sample collected in proton-proton collisions at sqrt(s) = 7 TeV corresponding to an integrated luminosity of 2.2 inverse femtobarns. In the context of the large-extra-dimensions model, lower limits are set on the effective Planck scale in the range of 2.3-3.8 TeV at the 95% confidence level. These limits are the most restrictive bounds on virtual-graviton exchange to date. The most restrictive lower limits to date are also set on the mass of the first graviton excitation in the Randall-Sundrum model in the range of 0.86-1.84 TeV, for values of the associated coupling parameter between 0.01 and 0.10.

Description

Keywords

Pedagogical Context

Citation

Research Projects

Organizational Units

Journal Issue