Measurement of the $B^{\pm }$ production cross-section in pp collisions at $\sqrt{s}=$ 7 and 13 TeV

Abstract

The production of $B^{\pm }$ mesons is studied in $pp$ collisions at centre-of-mass energies of 7 and 13 TeV, using $B^{\pm }\to J/\psi K^{\pm }$ 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 $0<p_{\text{T}}<40$ GeV/$c$ and the rapidity range $2.0<y<4.5$ are measured to be $\sigma (pp\to B^{\pm }X,\sqrt{s}=\text{7 TeV})=43.0\pm 0.2\pm 2.5\pm 1.7\mu b,$ $\sigma (pp\to B^{\pm }X,\sqrt{s}=\text{13 TeV})=86.6\pm 0.5\pm 5.4\pm 3.4\mu b,$ where the first uncertainties are statistical, the second are systematic, and the third are due to the limited knowledge of the $B^{\pm }\to J/\psi K^{\pm }$ branching fraction. The ratio of the cross-section at 13 TeV to that at 7 TeV is determined to be $2.02\pm 0.02\text{(stat)}\pm 0.12\text{(syst)}$. Differential cross-sections are also reported as functions of $p_{\text{T}}$ and $y$. All results are in agreement with theoretical calculations based on the state-of-art fixed next-to-leading order quantum chromodynamics.

All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2017-037.html

References in corpus (2)

• Implications of CTEQ global analysis for collider observables
• Measurement of the B+- production cross-section in pp collisions at sqrt(s)=7 TeV

Cited by in corpus (25)

• Measurement of $CP$-averaged observables in the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay
• ${\mathrm{\Lambda }}_{\mathrm{c}}^{+}$ production and baryon-to-meson ratios in pp and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV at the LHC
• Flavor Anomalies in Heavy Quark Decays
• ${\mathrm{\Lambda }}_{\mathrm{c}}^{+}$ production in pp and in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Observation of a multiplicity dependence in the $p_{\mathrm{T}}$-differential charm baryon-to-meson ratios in proton-proton collisions at $\sqrt{s}=13$ TeV
• Measurement of $B^{+}$, $B^0$ and ${\Lambda }_b^0$ production in $p\mathrm{Pb}$ collisions at $\sqrt{s_{\mathrm{NN}}}=8.16\mathrm{TeV}$
• Measurement of $f_s/f_u$ variation with proton-proton collision energy and $B$-meson kinematics
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Predictions for Neutrinos and New Physics from Forward Heavy Hadron Production at the LHC
• Enhanced production of ${\Lambda }_b^0$ baryons in high-multiplicity $pp$ collisions at $\sqrt{s}=13$ TeV
• Bottom hadro-chemistry in high-energy hadronic collisions
• Study of flavor dependence of the baryon-to-meson ratio in proton-proton collisions at $\sqrt{s}=13$ TeV
• High-energy neutrino deep inelastic scattering cross sections
• Evidence for modification of $b$ quark hadronization in high-multiplicity $pp$ collisions at $\sqrt{s}=13$ TeV
• Searching for lepton number violating $\Lambda$ baryon decays mediated by GeV-scale Majorana neutrino with LHCb
• Discovering heavy neutrino oscillations in rare Bc meson decays at HL-LHCb
• Leptophilic Axion-like Particles at Forward Detectors
• Prospects for studies of $D^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ and $B_{(s)}^{\ast 0}\to {\mu }^{+}{\mu }^{-}$ decays
• Novel correlated $D^0\overline{D}{}^0$ systems for $c/b$ physics and tests of $T/CPT$
• Angular analysis of the rare decay $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$
• A search for rare $B\to D{\mu }^{+}{\mu }^{-}$ decays
• Heavy-flavor impact on CTEQ-TEA global QCD analyses
• The potential of CMS as a high-energy neutrino scattering experiment
• D and B-meson production using kt-factorization calculations in a variable-flavor-number scheme
• Studies of beauty hadron and non-prompt charm hadron production in pp collisions at $\sqrt{s}$=13 TeV within a transport model approach