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Journal Articles Journal of High Energy Physics Year : 2013

Search in leptonic channels for heavy resonances decaying to long-lived neutral particles

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S. Chatrchyan
  • Function : Author
S. Baffioni
Pierre Busson
R. Granier de Cassagnac
C. Mironov
P. Paganini
C. Collard
P. van Hove
D. Contardo
M. Gouzevitch
M. Lethuillier
V. Sordini
S. Viret

Abstract

A search is performed for heavy resonances decaying to two long-lived massive neutral particles, each decaying to leptons. The experimental signature is a distinctive topology consisting of a pair of oppositely charged leptons originating at a separated secondary vertex. Events were collected by the CMS detector at the LHC during pp collisions at sqrt(s) = 7 TeV, and selected from data samples corresponding to 4.1 (5.1) inverse femtobarns of integrated luminosity in the electron (muon) channel. No significant excess is observed above standard model expectations, and an upper limit is set with 95% confidence level on the production cross section times the branching fraction to leptons, as a function of the long-lived massive neutral particle lifetime.

Dates and versions

in2p3-00751221 , version 1 (13-11-2012)

Identifiers

Cite

S. Chatrchyan, M. Besançon, S. Choudhury, F. Couderc, M. Dejardin, et al.. Search in leptonic channels for heavy resonances decaying to long-lived neutral particles. Journal of High Energy Physics, 2013, 2, pp.085. ⟨10.1007/JHEP02(2013)085⟩. ⟨in2p3-00751221⟩
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