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

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...

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Format: Article
Language:English
Published: Springer Science and Business Media LLC, 2021-10-27T19:57:03Z.
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245 0 0 |a Search in leptonic channels for heavy resonances decaying to long-lived neutral particles 
260 |b Springer Science and Business Media LLC,   |c 2021-10-27T19:57:03Z. 
856 |z Get fulltext  |u https://hdl.handle.net/1721.1/133871 
520 |a 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 √s = 7 TeV, and selected from data samples corresponding to 4.1 (5.1) fb-1 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. Copyright CERN. 
546 |a en 
655 7 |a Article 
773 |t 10.1007/JHEP02(2013)085 
773 |t Journal of High Energy Physics