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Search for long-lived particles decaying to jet pairs

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A search is presented for long-lived particles with a mass between 25 and 50 $$\mathrm{GeV}/\mathrm{c}^{2}$$and a lifetime between 1 and 200$$\mathrm{\,ps}$$in a sample of proton-proton collisions at a centre-of-mass energy of $$\sqrt{s}=7$$ TeV, corresponding to an integrated luminosity of 0.62 $$\...

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Main Authors: Aaij, Roel (Author) , Aquines Gutiérrez, Osvaldo (Author) , Bachmann, Sebastian (Author) , Bien, Alexander (Author) , Blouw, Johan (Author) , Britsch, Markward (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Dordei, Francesca (Author) , Esen, Sevda (Author) , Färber, Christian (Author) , Fontana, Marianna (Author) , Gersabeck, Evelina (Author) , Grillo, Lucia (Author) , Grünberg, Oliver (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Heß, Miriam (Author) , Jäger, Andreas (Author) , Kolpin, Michael (Author) , Kreplin, Katharina (Author) , Krocker, Georg Alexander (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Schmelling, Michael (Author) , Seyfert, Paul (Author) , Stahl, Marian (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Voß, Christian (Author) , Waldi, Roland (Author) , Wandernoth, Sebastian (Author) , Wiedner, Dirk (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 17 April 2015
In: The European physical journal. C, Particles and fields
Year: 2015, Volume: 75, Issue: 4, Pages: 1-12
ISSN:1434-6052
DOI:10.1140/epjc/s10052-015-3344-6
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-015-3344-6
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Author Notes:LHCb Collaboration
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Summary:A search is presented for long-lived particles with a mass between 25 and 50 $$\mathrm{GeV}/\mathrm{c}^{2}$$and a lifetime between 1 and 200$$\mathrm{\,ps}$$in a sample of proton-proton collisions at a centre-of-mass energy of $$\sqrt{s}=7$$ TeV, corresponding to an integrated luminosity of 0.62 $$\text{ fb }^{-1}$$, collected by the LHCb detector. The particles are assumed to be pair-produced by the decay of a standard model-like Higgs boson. The experimental signature of the long-lived particle is a displaced vertex with two associated jets. No excess above the background is observed and limits are set on the production cross-section as a function of the long-lived particle mass and lifetime.
Item Description:LHCb Collaboration: R. Aaij, B. Adeva, M. Adinolfi, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Comerma-Montells, M. De Cian, F. Dordei, S. Esen, C. Färber, M. Fontana, E. Gersabeck, L. Grillo, O. Grünberg, X. Han, S. Hansmann-Menzemer, M. Heß, A. Jaeger, M. Kolpin, K. Kreplin, G. Krocker, B. Leverington, J. Marks, M. Meissner, M. Neuner, T. Nikodem, M. Schmelling, P. Seyfert, M. Stahl, U. Uwer, M. Vesterinen, C. Voß, R. Waldi, S. Wandernoth, D. Wiedner, A. Zhelezov [und 662 weitere]
Gesehen am 26.07.2021
Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-015-3344-6

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