An updated search for heavy narrow resonances decaying to muon or electron pairs using the CMS detector is presented. Data samples from pp collisions at View the MathML sources=7 TeV and 8 TeV at the LHC, with integrated luminosities of up to 5.3 and 4.1 fb−14.1 fb−1, respectively, are combined. No evidence for a heavy narrow resonance is observed. The analysis of the combined data sets excludes, at 95% confidence level, a Sequential Standard Model View the MathML sourceZSSM′ resonance lighter than 2590 GeV, a superstring-inspired View the MathML sourceZψ′ lighter than 2260 GeV, and Kaluza–Klein gravitons lighter than 2390 (2030) GeV, assuming that the coupling parameter View the MathML sourcek/M¯Pl is 0.10 (0.05). These are the most stringent limits to date.

Chatrchyan, S., Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Aguilo, E., et al. (2013). Search for heavy narrow dilepton resonances in pp collisions at root s = 7 TeV and root s = 8 TeV. PHYSICS LETTERS. SECTION B, 720(1-3), 63-82 [10.1016/j.physletb.2013.02.003].

Search for heavy narrow dilepton resonances in pp collisions at root s = 7 TeV and root s = 8 TeV

BENAGLIA, ANDREA DAVIDE;DE GUIO, FEDERICO;DI MATTEO, LEONARDO;FIORENDI, SARA;GHEZZI, ALESSIO;MANZONI, RICCARDO ANDREA;MARTELLI, ARABELLA;MASSIRONI, ANDREA;MORONI, LUIGI;PAGANONI, MARCO;RAGAZZI, STEFANO;TABARELLI DE FATIS, TOMMASO;Branca, A;Govoni, P;DINARDO, MAURO EMANUELE;
2013

Abstract

An updated search for heavy narrow resonances decaying to muon or electron pairs using the CMS detector is presented. Data samples from pp collisions at View the MathML sources=7 TeV and 8 TeV at the LHC, with integrated luminosities of up to 5.3 and 4.1 fb−14.1 fb−1, respectively, are combined. No evidence for a heavy narrow resonance is observed. The analysis of the combined data sets excludes, at 95% confidence level, a Sequential Standard Model View the MathML sourceZSSM′ resonance lighter than 2590 GeV, a superstring-inspired View the MathML sourceZψ′ lighter than 2260 GeV, and Kaluza–Klein gravitons lighter than 2390 (2030) GeV, assuming that the coupling parameter View the MathML sourcek/M¯Pl is 0.10 (0.05). These are the most stringent limits to date.
Articolo in rivista - Articolo scientifico
high energy collider; LHC; CMS; heavy dilepton resonances
English
2013
720
1-3
63
82
none
Chatrchyan, S., Khachatryan, V., Sirunyan, A., Tumasyan, A., Adam, W., Aguilo, E., et al. (2013). Search for heavy narrow dilepton resonances in pp collisions at root s = 7 TeV and root s = 8 TeV. PHYSICS LETTERS. SECTION B, 720(1-3), 63-82 [10.1016/j.physletb.2013.02.003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/46138
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