Results are presented from a search for new physics in final states containing a photon and missing transverse momentum. The data correspond to an integrated luminosity of 19.6 fb−1 collected in proton–proton collisions at s=8 TeV with the CMS experiment at the LHC. No deviation from the standard model predictions is observed for these final states. New, improved limits are set on dark matter production and on parameters of models with large extra dimensions. In particular, the first limits from the LHC on branon production are found and significantly extend previous limits from LEP and the Tevatron. An upper limit of 14.0 fb on the cross section is set at the 95% confidence level for events with a monophoton final state with photon transverse momentum greater than 145 GeV and missing transverse momentum greater than 140 GeV.

Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., et al. (2016). Search for new phenomena in monophoton final states in proton–proton collisions at s=8 TeV. PHYSICS LETTERS. SECTION B, 755, 102-124 [10.1016/j.physletb.2016.01.057].

Search for new phenomena in monophoton final states in proton–proton collisions at s=8 TeV

Dinardo M. E.;Fiorendi S.;Gerosa R.;Ghezzi A.;Govoni P.;Lucchini M. T.;Manzoni R. A.;Martelli A.;Marzocchi B.;Moroni L.;Paganoni M.;Ragazzi S.;Tabarelli de Fatis T.;Branca A.;Benaglia A.;De Guio F.;Malberti M.;Massironi A.;
2016

Abstract

Results are presented from a search for new physics in final states containing a photon and missing transverse momentum. The data correspond to an integrated luminosity of 19.6 fb−1 collected in proton–proton collisions at s=8 TeV with the CMS experiment at the LHC. No deviation from the standard model predictions is observed for these final states. New, improved limits are set on dark matter production and on parameters of models with large extra dimensions. In particular, the first limits from the LHC on branon production are found and significantly extend previous limits from LEP and the Tevatron. An upper limit of 14.0 fb on the cross section is set at the 95% confidence level for events with a monophoton final state with photon transverse momentum greater than 145 GeV and missing transverse momentum greater than 140 GeV.
Articolo in rivista - Articolo scientifico
CMS; Dark matter; Monophoton; Physics;
English
2016
755
102
124
none
Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., et al. (2016). Search for new phenomena in monophoton final states in proton–proton collisions at s=8 TeV. PHYSICS LETTERS. SECTION B, 755, 102-124 [10.1016/j.physletb.2016.01.057].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/319246
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