# Search for long-lived particles decaying to jet pairs

Abstract : A search is presented for long-lived particles with a mass between 25 and 50 GeV$/c^2$ and a lifetime between 1 and 200 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 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.
Type de document :
Article dans une revue
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2015, 75 (4), pp.152. 〈10.1140/epjc/s10052-015-3344-6〉

http://hal.in2p3.fr/in2p3-01095394
Contributeur : Claudine Bombar <>
Soumis le : lundi 15 décembre 2014 - 15:21:34
Dernière modification le : mardi 13 novembre 2018 - 21:58:08

### Citation

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Ziad Ajaltouni, et al.. Search for long-lived particles decaying to jet pairs. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2015, 75 (4), pp.152. 〈10.1140/epjc/s10052-015-3344-6〉. 〈in2p3-01095394〉

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