Jul 4 – 11, 2018
COEX, SEOUL
Asia/Seoul timezone

Search for black holes and sphalerons in high-multiplicity final states in proton-proton collisions at sqrt(s) = 13 TeV with CMS

Jul 6, 2018, 6:30 PM
2h
COEX, SEOUL

COEX, SEOUL

Poster POSTER

Speaker

Cameron Bravo (University of California Los Angeles (US))

Description

A search for new-physics signals resulting in energetic, high-multiplicity final states, such as black holes, string balls, and electroweak sphalerons, is presented using a data sample corresponding to an integrated luminosity of 35.9 $\text{fb}^{-1}$ collected with the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV in 2016. Standard model backgrounds, dominated by multijet production, were determined from control regions in data. No excesses characteristic of new-physics signals resulting in such final states were observed. Model-independent 95% confidence level upper limits on the cross section of new-physics signals in these final states are set and further interpreted in terms of limits on semiclassical black hole, string ball, and sphaleron production.

Primary author

Arnd Meyer (Rheinisch Westfaelische Tech. Hoch. (DE))

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