A search is presented for long-lived particles with a mass between 25 and 50 GeV/c2 and a lifetime between 1 and 200 ps in a sample of proton–proton collisions at a centre-of-mass energy of 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.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Search for long-lived particles decaying to jet pairs. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 75(4), 1-12 [10.1140/epjc/s10052-015-3344-6].

Search for long-lived particles decaying to jet pairs

Borsato, M;CALVI, MARTA;CASSINA, LORENZO;GOTTI, CLAUDIO;KHANJI, BASEM;Martinelli, M;MATTEUZZI, CLARA;
2015

Abstract

A search is presented for long-lived particles with a mass between 25 and 50 GeV/c2 and a lifetime between 1 and 200 ps in a sample of proton–proton collisions at a centre-of-mass energy of 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.
Articolo in rivista - Articolo scientifico
Engineering (miscellaneous); Physics and Astronomy (miscellaneous)
English
2015
75
4
1
12
152
open
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2015). Search for long-lived particles decaying to jet pairs. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 75(4), 1-12 [10.1140/epjc/s10052-015-3344-6].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/154293
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