Measurement of the B± production cross-section in pp collisions at √s=7 and 13 TeV
Title: | Measurement of the B± production cross-section in pp collisions at √s=7 and 13 TeV
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Author: | LHCb Collaboration
Adeva Andany, Bernardo
Borsato, Martino
Chobanova, Veronika
Cid Vidal, Xabier
Dosil Suárez, Álvaro
Fernández Prieto, Antonio
García Pardiñas, Julián
Lemos Cid, Edgar
Lucio Martínez, Miriam
Martínez Santos, Diego
Plo Casasus, Máximo
Prisciandaro, Jessica
Ramos Pernas, Miguel
Romero Vidal, Antonio
Saborido Silva, Juan José
Sanmartín Sedes, Brais
Santamarina Ríos, Cibrán
Vázquez Regueiro, Pablo
Vieites Díaz, María
Vázquez Sierra, Carlos
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Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
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Subject: | B physics | Hadron-Hadron scattering (experiments) | Particle and resonance production | |
Date of Issue: | 2017
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Publisher: | Springer
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Citation: | Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the B± production cross-section in pp collisions at √s=7 and 13 TeV. J. High Energ. Phys. 2017, 26 (2017). https://doi.org/10.1007/JHEP12(2017)026
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Abstract: | The production of B± mesons is studied in pp collisions at centre-of-mass energies of 7 and 13 TeV, using B± → J/ψ K± decays and data samples corresponding to 1.0 fb−1 and 0.3 fb−1, respectively. The production cross-sections summed over both charges and integrated over the transverse momentum range 0 < pT < 40 GeV/c and the rapidity range 2.0 < y < 4.5 are measured to be
σ(pp→B±X,s√=7TeV)=43.0±0.2±2.5±1.7μb,σ(pp→B±X,s√=13TeV)=86.6±0.5±5.4±3.4μb,
where the first uncertainties are statistical, the second are systematic, and the third are due to the limited knowledge of the B± → J/ψ K± branching fraction. The ratio of the cross-section at 13 TeV to that at 7 TeV is determined to be 2.02 ± 0.02 (stat) ± 0.12 (syst). Differential cross-sections are also reported as functions of pT and y. All results are in agreement with theoretical calculations based on the state-of-art fixed next-to-leading order quantum chromodynamics. |
Publisher version: | https://doi.org/10.1007/JHEP12(2017)026 |
URI: | http://hdl.handle.net/10347/22656
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DOI: | 10.1007/JHEP12(2017)026 |
ISSN: | 1029-8479
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Rights: | © CERN, for the bene t 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.
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