A search for long-lived particles decaying to photons and weaklyinteracting particles, using protonproton collision data at root s = 13TeV collected by the CMS experiment in 2016-2017 is presented. The dataset corresponds to an integrated luminosity of 77.4 fb(-1). Results areinterpreted in the context of supersymmetry with gauge-mediatedsupersymmetry breaking, where the neutralino is long-lived and decays toa photon and a gravitino. Limits are presented as a function of theneutralino proper decay length and mass. For neutralino proper decaylengths of 0.1, 1, 10, and 100 m, masses up to 320, 525, 360, and 215GeV are excluded at 95% confidence level, respectively. We extend theprevious best limits in the neutralino proper decay length by up to oneorder of magnitude, and in the neutralino mass by up to 100 GeV.

Search for long-lived particles using delayed photons in proton-proton collisions at root s=13 TeV

Albergo, S.;Costa, S.;Potenza, R.;Tricomi, A.;Tuve, C.;
2019-01-01

Abstract

A search for long-lived particles decaying to photons and weaklyinteracting particles, using protonproton collision data at root s = 13TeV collected by the CMS experiment in 2016-2017 is presented. The dataset corresponds to an integrated luminosity of 77.4 fb(-1). Results areinterpreted in the context of supersymmetry with gauge-mediatedsupersymmetry breaking, where the neutralino is long-lived and decays toa photon and a gravitino. Limits are presented as a function of theneutralino proper decay length and mass. For neutralino proper decaylengths of 0.1, 1, 10, and 100 m, masses up to 320, 525, 360, and 215GeV are excluded at 95% confidence level, respectively. We extend theprevious best limits in the neutralino proper decay length by up to oneorder of magnitude, and in the neutralino mass by up to 100 GeV.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/390520
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 18
social impact