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Measurements of prompt charm production cross-sections in $pp$ collisions at $\sqrt{s}$ = 5 TeV


LHCb Collaboration; Bernet, R; Müller, K; Serra, N; Steinkamp, O; Straumann, U; Vollhardt, A; et al (2017). Measurements of prompt charm production cross-sections in $pp$ collisions at $\sqrt{s}$ = 5 TeV. Journal of High Energy Physics, 06:147.

Abstract

Production cross-sections of prompt charm mesons are measured using data from pp collisions at the LHC at a centre-of-mass energy of 5 TeV. The data sample corresponds to an integrated luminosity of $8.60 \pm 0.33 pb^{−1}$ collected by the LHCb experiment. The production cross-sections of $D^0, D^+, D_s^+$ , and $D^{∗+}$ mesons are measured in bins of charm meson transverse momentum, $p_T$, and rapidity, $y$. They cover the rapidity range $2.0 < y < 4.5$ and transverse momentum ranges $0 < p_T < 10 GeV/c$ for $D^0$ and $D^+$ and $1 < p_T < 10 GeV/c$ for $D_s^+$ and $D^{∗+}$ mesons. The inclusive cross-sections for the four mesons, including charge-conjugate states, within the range of $1 < p_T < 8 GeV/c$ are determined to be
$\sigma(pp \to D^0 X) = 1004 \pm 3 \pm 54\mu b,$
$\sigma(pp \to D^+X) = 402 \pm 2 \pm 30\mu b,$
$\sigma(pp \to D^+_sX) = 170 \pm 4 \pm 16\mu b,$
$\sigma(pp \to D^{∗+}X) = 421 \pm 5 \pm 36\mu b,$
where the uncertainties are statistical and systematic, respectively.

Abstract

Production cross-sections of prompt charm mesons are measured using data from pp collisions at the LHC at a centre-of-mass energy of 5 TeV. The data sample corresponds to an integrated luminosity of $8.60 \pm 0.33 pb^{−1}$ collected by the LHCb experiment. The production cross-sections of $D^0, D^+, D_s^+$ , and $D^{∗+}$ mesons are measured in bins of charm meson transverse momentum, $p_T$, and rapidity, $y$. They cover the rapidity range $2.0 < y < 4.5$ and transverse momentum ranges $0 < p_T < 10 GeV/c$ for $D^0$ and $D^+$ and $1 < p_T < 10 GeV/c$ for $D_s^+$ and $D^{∗+}$ mesons. The inclusive cross-sections for the four mesons, including charge-conjugate states, within the range of $1 < p_T < 8 GeV/c$ are determined to be
$\sigma(pp \to D^0 X) = 1004 \pm 3 \pm 54\mu b,$
$\sigma(pp \to D^+X) = 402 \pm 2 \pm 30\mu b,$
$\sigma(pp \to D^+_sX) = 170 \pm 4 \pm 16\mu b,$
$\sigma(pp \to D^{∗+}X) = 421 \pm 5 \pm 36\mu b,$
where the uncertainties are statistical and systematic, respectively.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:31 Jan 2018 13:35
Last Modified:20 Sep 2018 04:28
Publisher:Springer
ISSN:1029-8479
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/JHEP06(2017)147

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