A study of meson production at LHCb is performed on proton–proton collision data, corresponding to 3.0 of integrated luminosity collected at centre-of-mass energies = 7 and 8. The fraction of Υ mesons originating from χ decays is measured as a function of the transverse momentum in the rapidity range. The radiative transition of the meson to Υ is observed for the first time. The χ mass is determined to be (Formula presented.) where the first uncertainty is statistical and the second is systematic.

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2014). Study of Xb meson production in pp collisions at √s=7 and 8 TeV and observation of the decay Xb (3P) → ϒ (3S) γ. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(10), 1-13 [10.1140/epjc/s10052-014-3092-z].

Study of Xb meson production in pp collisions at √s=7 and 8 TeV and observation of the decay Xb (3P) → ϒ (3S) γ

Borsato, M;CALVI, MARTA;CASSINA, LORENZO;GOTTI, CLAUDIO;KHANJI, BASEM;KUCHARCZYK, MARCIN;Martinelli, M;
2014

Abstract

A study of meson production at LHCb is performed on proton–proton collision data, corresponding to 3.0 of integrated luminosity collected at centre-of-mass energies = 7 and 8. The fraction of Υ mesons originating from χ decays is measured as a function of the transverse momentum in the rapidity range. The radiative transition of the meson to Υ is observed for the first time. The χ mass is determined to be (Formula presented.) where the first uncertainty is statistical and the second is systematic.
Articolo in rivista - Articolo scientifico
Physics and Astronomy (miscellaneous); Engineering (miscellaneous)
English
2014
74
10
1
13
3092
none
Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., et al. (2014). Study of Xb meson production in pp collisions at √s=7 and 8 TeV and observation of the decay Xb (3P) → ϒ (3S) γ. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 74(10), 1-13 [10.1140/epjc/s10052-014-3092-z].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/89004
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