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2014-05

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cc-by (c) Camboni, Alessandro et al., 2014
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/185629

Measurement of psi (2S) polarisation in pp collisions at root s=7 TeV

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https://doi.org/10.1140/epjc/s10052-014-2872-9

Abstract

The polarisation of prompt ψ(2S) mesons is measured by performing an angular analysis of ψ(2S)→ µ +µ − decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb−1 , collected by the LHCb detector at a centre-ofmass energy of 7 TeV. The polarisation is measured in bins of transverse momentum pT and rapidity y in the kinematic region 3.5 < pT < 15 GeV/c and 2.0 < y < 4.5, and is compared to theoretical models. No significant polarisation is observed.

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Hadrons, Gran Col·lisionador d'Hadrons, Física de partícules, Experiments

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Hadrons, Large Hadron Collider (France and Switzerland), Particle physics, Experiments

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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CAMBONI, Alessandro, et al. Measurement of psi (2S) polarisation in pp collisions at root s=7 TeV. European Physical Journal C. 2014. Vol. 74, num. 5, pags. 2872. ISSN 1434-6044. [consulted: 8 of June of 2026]. Available at: https://hdl.handle.net/2445/185629

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