Search for supersymmetry in events with at least one photon, missing transverse momentum, and large transverse event activity in proton-proton collisions at √s=13 TeV

Open access
Author
CMS Collaboration
Sirunyan, Albert M.
Bachmair, Felix
Bäni, L.
Berger, Pirmin
Bianchini, Lorenzo
Casal, Bruno
Dissertori, Günther
Dittmar, Michael
Donegà, Mauro
Grab, Christoph
Heidegger, Constantin
Hits, Dmitry
Hoss, Jan
Kasieczka, Gregor
Klijnsma, Thomas
Lustermann, Werner
Mangano, Boris
Marionneau, Matthieu
Meinhard, Maren T.
Meister, Daniel
Micheli, Francesco
Musella, Pasquale
Nessi-Tedaldi, Francesca
Pandolfi, Francesco
Pata, Joosep
Pauss, Felicitas
Perrin, Gaël
Perrozzi, Luca
Quittnat, Milena
Schönenberger, Myriam
Shchutska, Lesya
Tavolaro, Vittorio R.
Theofilatos, Konstantinos
Vesterbacka Olsson, Minna L.
Wallny, Rainer
Zagozdzinska, Agnieszka
Zhu, De Hua
et al.
Date
2017-12Type
- Journal Article
ETH Bibliography
yes
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Abstract
A search for physics beyond the standard model in final states with at least one photon, large transverse momentum imbalance, and large total transverse event activity is presented. Such topologies can be produced in gauge-mediated supersymmetry models in which pair-produced gluinos or squarks decay to photons and gravitinos via short-lived neutralinos. The data sample corresponds to an integrated luminosity of 35.9 fb−1 of proton-proton collisions at √s=13 TeV recorded by the CMS experiment at the LHC in 2016. No significant excess of events above the expected standard model background is observed. The data are interpreted in simplified models of gluino and squark pair production, in which gluinos or squarks decay via neutralinos to photons. Gluino masses of up to 1.50-2.00 TeV and squark masses up to 1.30-1.65 TeV are excluded at 95% confidence level, depending on the neutralino mass and branching fraction Show more
Permanent link
https://doi.org/10.3929/ethz-b-000227808Publication status
publishedJournal / series
Journal of High Energy PhysicsVolume
Pages / Article No.
Publisher
SpringerSubject
Hadron-Hadron scattering (experiments); Supersymmetry; Photon productionOrganisational unit
03593 - Dissertori, Günther / Dissertori, Günther
08803 - Grab, Christoph (Tit.Prof.)
03904 - Wallny, Rainer / Wallny, Rainer
03381 - Pauss, Felicitas (emeritus)
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ETH Bibliography
yes
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