Updated 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 $\,\mathrm{GeV}/c^{2}$ and a lifetime between 2 and 500 ps, using proton–proton collision data corresponding to an integrated luminosity of 2.0 $\,\mathrm{fb}^{-1}$ , collected by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. The particles are assumed to be pair-produced in the decay of a 125 $\,\mathrm{GeV}/c^{2}$ Standard-Model-like Higgs boson. The experimental signature is a single long-lived particle, identified by a displaced vertex with two associated jets. No excess above background is observed and limits are set on the production cross-section as a function of the mass and lifetime of the long-lived particle.
Keywords :
Type de document :
Article dans une revue
Eur.Phys.J.C, 2017, 77 (12), pp.812. 〈10.1140/epjc/s10052-017-5178-x〉

https://hal.archives-ouvertes.fr/hal-01669717
Contributeur : Inspire Hep <>
Soumis le : jeudi 21 décembre 2017 - 00:09:33
Dernière modification le : lundi 16 avril 2018 - 22:59:11

Citation

R. Aaij, Bernardo Adeva, Marco Adinolfi, Ziad Ajaltouni, Simon Akar, et al.. Updated search for long-lived particles decaying to jet pairs. Eur.Phys.J.C, 2017, 77 (12), pp.812. 〈10.1140/epjc/s10052-017-5178-x〉. 〈hal-01669717〉

Métriques

Consultations de la notice