A search is presented for long-lived particles with a mass between 25 and 50 GeV/c(2) and a lifetime between 2 and 500 ps, using proton-proton collision data corresponding to an integrated luminosity of 2.0 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 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.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Updated search for long-lived particles decaying to jet pairs. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 77(12) [10.1140/epjc/s10052-017-5178-x].

Updated search for long-lived particles decaying to jet pairs

Archilli, F.;Santovetti, E.
Membro del Collaboration Group
;
2017-01-01

Abstract

A search is presented for long-lived particles with a mass between 25 and 50 GeV/c(2) and a lifetime between 2 and 500 ps, using proton-proton collision data corresponding to an integrated luminosity of 2.0 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 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.
2017
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
PP COLLISIONS; HIGGS-BOSON; DETECTOR; MASS; LHC; TEV
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Updated search for long-lived particles decaying to jet pairs. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 77(12) [10.1140/epjc/s10052-017-5178-x].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/208079
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