Search for photonic signatures of gauge-mediated supersymmetry in 13 TeV pp collisions with the ATLAS detector
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American Physical Society
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2018Referencia bibliográfica
Atlas Collaboration. Search for photonic signatures of gauge-mediated supersymmetry in 13 TeV pp collisions with the ATLAS detector. PHYSICAL REVIEW D 97, 092006 (2018). [10.1103/PhysRevD.97.092006].
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Funded by SCOAP3.Resumen
A search is presented for photonic signatures, motivated by generalized models of gauge-mediated
supersymmetry breaking. This search makes use of proton-proton collision data at √s = 13 TeV
corresponding to an integrated luminosity of 36.1 fb−1 recorded by the ATLAS detector at the LHC,
and it explores models dominated by both strong and electroweak production of supersymmetric partner
states. Experimental signatures incorporating an isolated photon and significant missing transverse
momentum are explored. These signatures include events with an additional photon or additional jet
activity not associated with any specific underlying quark flavor. No significant excess of events is
observed above the Standard Model prediction, and 95% confidence-level upper limits of between 0.083
and 0.32 fb are set on the visible cross section of contributions from physics beyond the Standard Model.
These results are interpreted in terms of lower limits on the masses of gluinos, squarks, and gauginos in the
context of generalized models of gauge-mediated supersymmetry, which reach as high as 2.3 TeV for
strongly produced and 1.3 TeV for weakly produced supersymmetric partner pairs.