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

LHCb Collaboration; Bernet, R; Müller, K; Serra, N; Steinkamp, O; Straumann, U; Vollhardt, A; et al (2017). Measurement of the $B^{\pm}$ production cross-section in $pp$ collisions at $\sqrt{s}$ = 7 and 13 TeV. Journal of High Energy Physics, 12:026.

## 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 $0 < p_T < 40 GeV/c$ and the rapidity range $2.0 < y < 4.5$ are measured to be
$\sigma (pp \to B^{\pm}X,\sqrt{s} = 7 TeV) = 43.0 \pm 0.2 \pm 2.5 \pm 1.7 \mu b$,
$\sigma (pp \to B^{\pm}X,\sqrt{s} = 13 TeV) = 86.6 \pm 0.5 \pm 5.4 \pm 3.4 \mu b$,
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 $2.02 \pm 0.02 (stat) \pm 0.12 (syst)$. 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.

## 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 $0 < p_T < 40 GeV/c$ and the rapidity range $2.0 < y < 4.5$ are measured to be
$\sigma (pp \to B^{\pm}X,\sqrt{s} = 7 TeV) = 43.0 \pm 0.2 \pm 2.5 \pm 1.7 \mu b$,
$\sigma (pp \to B^{\pm}X,\sqrt{s} = 13 TeV) = 86.6 \pm 0.5 \pm 5.4 \pm 3.4 \mu b$,
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 $2.02 \pm 0.02 (stat) \pm 0.12 (syst)$. 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.

## Statistics

### Citations

Dimensions.ai Metrics

### Altmetrics

Detailed statistics