LHCb CollaborationAdeva Andany, BernardoÁlvarez Cartelle, PaulaDosil Suárez, ÁlvaroFernández Albor, Víctor ManuelGallas Torreira, Abraham AntonioGarcía Pardiñas, JuliánHernando Morata, José ÁngelPlo Casasus, MáximoRomero Vidal, AntonioSaborido Silva, Juan JoséSanmartín Sedes, BraisSantamarina Ríos, CibránVázquez Regueiro, PabloVázquez Sierra, CarlosVieites Díaz, María2020-05-062020-05-062014Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the χ b (3P) mass and of the relative rate of χ b1(1P) and χ b2(1P) production. J. High Energ. Phys. 2014, 88 (2014). https://doi.org/10.1007/JHEP10(2014)0881029-8479http://hdl.handle.net/10347/22069The production of b mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of p s = 7 and 8TeV and corresponding to an integrated luminosity of 3.0 fb−1. The b mesons are identified through their decays to (1S) and (2S) using photons that converted to e+e− pairs in the detector. The relative prompt production rate of b1(1P) and b2(1P) mesons is measured as a function of the (1S) transverse momentum in the b rapidity range 2.0 < y < 4.5. A precise measurement of the b(3P) mass is also performed. Assuming a mass splitting between the b1(3P) and the b2(3P) states of 10.5 MeV/c2, the measured mass of the b1(3P) meson is m( b1(3P)) = 10515.7+2.2 −3.9(stat)+1.5 −2.1(syst)MeV/c2.eng© CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.https://creativecommons.org/licenses/by/4.0QuarkoniumHadron-Hadron ScatteringFlavor physicsjournal articledoi.org/10.1007/JHEP10(2014)088open access