Measurement of the B ^± production cross-section in pp collisions at √s=7 and 13 TeV

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi, M. AndreottiJ. E. Andrews, R. B. Appleby, F. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, G. Auriemma, M. Baalouch, I. Babuschkin, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, S. Baker, V. Balagura, W. Baldini, A. Baranov, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, F. Baryshnikov, V. Batozskaya, V. Battista, A. Bay, A. Mazurov, A. Vagner, The LHCb collaboration

Research output: Contribution to journal › Article

7 Citations (Scopus)

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 < p_T < 40 GeV/c and the rapidity range 2.0 < y < 4.5 are measured to beσ(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 p_T and y. All results are in agreement with theoretical calculations based on the state-of-art fixed next-to-leading order quantum chromodynamics.[Figure not available: see fulltext.].

Original language	English
Article number	26
Journal	Journal of High Energy Physics
Volume	2017
Issue number	12
DOIs	https://doi.org/10.1007/JHEP12(2017)026
Publication status	Published - 1 Dec 2017

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Keywords

B physics
Hadron-Hadron scattering (experiments)
Particle and resonance production

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., ... The LHCb collaboration (2017). Measurement of the B ^± production cross-section in pp collisions at √s=7 and 13 TeV. Journal of High Energy Physics, 2017(12), [26]. https://doi.org/10.1007/JHEP12(2017)026

Measurement of the B ^± production cross-section in pp collisions at √s=7 and 13 TeV. / Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Archilli, F.; d’Argent, P.; Arnau Romeu, J.; Artamonov, A.; Artuso, M.; Aslanides, E.; Atzeni, M.; Auriemma, G.; Baalouch, M.; Babuschkin, I.; Bachmann, S.; Back, J. J.; Badalov, A.; Baesso, C.; Baker, S.; Balagura, V.; Baldini, W.; Baranov, A.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Baryshnikov, F.; Batozskaya, V.; Battista, V.; Bay, A.; Mazurov, A.; Vagner, A.; The LHCb collaboration.

In: Journal of High Energy Physics, Vol. 2017, No. 12, 26, 01.12.2017.

Research output: Contribution to journal › Article

Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Mazurov, A, Vagner, A & The LHCb collaboration 2017, 'Measurement of the B ^± production cross-section in pp collisions at √s=7 and 13 TeV', Journal of High Energy Physics, vol. 2017, no. 12, 26. https://doi.org/10.1007/JHEP12(2017)026

Aaij, R. ; Adeva, B. ; Adinolfi, M. ; Ajaltouni, Z. ; Akar, S. ; Albrecht, J. ; Alessio, F. ; Alexander, M. ; Alfonso Albero, A. ; Ali, S. ; Alkhazov, G. ; Alvarez Cartelle, P. ; Alves, A. A. ; Amato, S. ; Amerio, S. ; Amhis, Y. ; An, L. ; Anderlini, L. ; Andreassi, G. ; Andreotti, M. ; Andrews, J. E. ; Appleby, R. B. ; Archilli, F. ; d’Argent, P. ; Arnau Romeu, J. ; Artamonov, A. ; Artuso, M. ; Aslanides, E. ; Atzeni, M. ; Auriemma, G. ; Baalouch, M. ; Babuschkin, I. ; Bachmann, S. ; Back, J. J. ; Badalov, A. ; Baesso, C. ; Baker, S. ; Balagura, V. ; Baldini, W. ; Baranov, A. ; Barlow, R. J. ; Barschel, C. ; Barsuk, S. ; Barter, W. ; Baryshnikov, F. ; Batozskaya, V. ; Battista, V. ; Bay, A. ; Mazurov, A. ; Vagner, A. ; The LHCb collaboration. / Measurement of the B ^± production cross-section in pp collisions at √s=7 and 13 TeV. In: Journal of High Energy Physics. 2017 ; Vol. 2017, No. 12.

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title = "Measurement of the B ± production cross-section in pp collisions at √s=7 and 13 TeV",

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 beσ(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.[Figure not available: see fulltext.].",

keywords = "B physics, Hadron-Hadron scattering (experiments), Particle and resonance production",

author = "R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and F. Archilli and P. d{\textquoteright}Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and F. Baryshnikov and V. Batozskaya and V. Battista and A. Bay and A. Mazurov and A. Vagner and {The LHCb collaboration}",

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AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - d’Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Mazurov, A.

AU - Vagner, A.

AU - The LHCb collaboration

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AB - 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 beσ(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.[Figure not available: see fulltext.].

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KW - Hadron-Hadron scattering (experiments)

KW - Particle and resonance production

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10.1007/JHEP12(2017)026