Search for resonances in the dilepton mass distribution in pp collisions at root s=7 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109671" target="_blank" >RIV/00216208:11320/11:10109671 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/JHEP05(2011)093" target="_blank" >http://dx.doi.org/10.1007/JHEP05(2011)093</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP05(2011)093" target="_blank" >10.1007/JHEP05(2011)093</a>

Result language
angličtina
Original language name
Search for resonances in the dilepton mass distribution in pp collisions at root s=7 TeV
Original language description
A search for narrow resonances at high mass in the dimuon and dielectron channels has been performed by the CMS experiment at the CERN LHC, using pp collision data recorded at root s = 7 TeV. The event samples correspond to integrated luminosities of 40pb(-1) in the dimuon channel and 35 pb(-1) in the dielectron channel. Heavy dilepton resonances are predicted in theoretical models with extra gauge bosons (Z') or as Kaluza-Klein graviton excitations (G(KK)) in the Randall-Sundrum model. Upper limits onthe inclusive cross section of Z'(GKK) -} l + l(-) relative to Z -} l + l(-) are presented. These limits exclude at 95% confidence level a Z' with standard-model-like couplings below 1140 GeV, the superstring-inspired Z'(psi) below 887 GeV, and, for values of the coupling parameter k/(M) over bar (Pl) of 0.05 (0.1), Kaluza-Klein gravitons below 855 (1079) GeV.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
<a href="/en/project/LA08015" target="_blank" >LA08015: Collaboration of the Czech Republic with CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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