# Search for a dimuon resonance in the $\Upsilon$ mass region

Abstract : A search is performed for a spin-0 boson, ϕ, produced in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, using prompt ϕ → μ$^{+}$μ$^{−}$ decays and a data sample corresponding to an integrated luminosity of approximately 3.0 fb$^{−1}$ collected with the LHCb detector. No evidence is found for a signal in the mass range from 5.5 to 15 GeV. Upper limits are placed on the product of the production cross-section and the branching fraction into the dimuon final state. The limits are comparable to the best existing over most of the mass region considered and are the first to be set near the ϒ resonances.
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Article dans une revue
Journal of High Energy Physics, Springer, 2018, 09, pp.147. 〈10.1007/JHEP09(2018)147〉

https://hal.archives-ouvertes.fr/hal-01815275
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Soumis le : jeudi 14 juin 2018 - 00:21:02
Dernière modification le : jeudi 21 février 2019 - 12:42:23

### Citation

Roel Aaij, Bernardo Adeva, Marco Adinolfi, Ziad Ajaltouni, Simon Akar, et al.. Search for a dimuon resonance in the $\Upsilon$ mass region. Journal of High Energy Physics, Springer, 2018, 09, pp.147. 〈10.1007/JHEP09(2018)147〉. 〈hal-01815275〉

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