Study of χb meson production in p p collisions at √s=7 and 8TeV and observation of the decay χb(3P)→Υ(3S)γ
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Título: | Study of χb meson production in p p collisions at √s=7 and 8TeV and observation of the decay χb(3P)→Υ(3S)γ |
Autor/a: | LHCb Collaboration Adeva Andany, Bernardo Álvarez Cartelle, Paula Dosil Suárez, Álvaro Fernández Albor, Víctor Manuel Gallas Torreira, Abraham Antonio García Pardiñas, Julián Hernando Morata, José Ángel Pazos Álvarez, Antonio Pérez Trigo, Eliseo Plo Casasus, Máximo Romero Vidal, Antonio Saborido Silva, Juan José Sanmartín Sedes, Brais Santamarina Ríos, Cibrán Seco Miguélez, Marcos Antonio Vázquez Regueiro, Pablo Vázquez Sierra, Carlos Vieites Díaz, María |
Centro/Departamento: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
Data: | 2014 |
Editor: | Springer |
Cita bibliográfica: | Aaij, R., Adeva, B., Adinolfi, M. et al. Study of χb meson production in p p collisions at √s=7 and 8TeV and observation of the decay χb(3P)→Υ(3S)γ . Eur. Phys. J. C 74, 3092 (2014). https://doi.org/10.1140/epjc/s10052-014-3092-z |
Resumo: | A study of χb meson production at LHCb is performed on proton–proton collision data, corresponding to 3.0 fb−1of integrated luminosity collected at centre-of-mass energies √s= 7 and 8 TeV. The fraction of Υ(nS) mesons originating from χb decays is measured as a function of the Υ transverse momentum in the rapidity range 2.0<yΥ<4.5. The radiative transition of the χb(3P) meson to Υ(3S) is observed for the first time. The χb1(3P) mass is determined to be mχb1(3P)=10511.3±1.7±2.5MeV/c2, where the first uncertainty is statistical and the second is systematic. |
Versión do editor: | https://doi.org/10.1140/epjc/s10052-014-3092-z |
URI: | http://hdl.handle.net/10347/21621 |
DOI: | 10.1140/epjc/s10052-014-3092-z |
ISSN: | 1434-6044 |
E-ISSN: | 1434-6052 |
Dereitos: | © CERN for the benefit of the LHCb collaboration 2014. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0 |
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© CERN for the benefit of the LHCb collaboration 2014. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0
© CERN for the benefit of the LHCb collaboration 2014. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Funded by SCOAP3 / License Version CC BY 4.0