Measurement of $\Xi^{+}_{c}$ production in pPb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV at LHCb

Information

LHCb-PAPER-2022-041
CERN-EP-2023-057
arXiv:2305.06711 [PDF]

(Submitted on 11 May 2023)
Phys. Rev. C 109 (2024) 044901
Inspire 2658872

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Abstract

A study of prompt $\Xi_{c}^{+}$ production in proton-lead collisions is performed with the LHCb experiment at a centre-of-mass energy per nucleon pair of 8.16 TeV in 2016 in $p$Pb and Pb$p$ collisions with an estimated integrated luminosity of approximately 12.5 and 17.4 nb$^{-1}$, respectively. The $\Xi_{c}^{+}$ production cross-section, as well as the $\Xi_{c}^{+}$ to $\Lambda_{c}^{+}$ production cross-section ratio, are measured as a function of the transverse momentum and rapidity and compared to latest theory predictions. The forward-backward asymmetry is also measured as a function of the $\Xi_{c}^{+}$ transverse momentum.

Figures and captions

Double-differential cross-section of the prompt $\Xi ^+_ c $ baryon times $\mathcal{B}(\Xi ^+_ c \rightarrow p K ^- \pi ^+ )$ in proton-lead collisions as a function of (a) $ p_{\mathrm{T}}$ and (b) $y^*$ in $p$Pb (red triangles) and Pb$p$ (blue triangles) collisions. The error bars represent the statistical uncertainties, while the black squares represent the total systematic uncertainties which include correlations among bins.	Fig1a.pdf [18 KiB] HiDef png [252 KiB] Thumbnail [199 KiB] *.C file
	Fig1b.pdf [16 KiB] HiDef png [212 KiB] Thumbnail [173 KiB] *.C file
Forward-backward ratio of $\Xi ^+_ c $ production as a function of $ p_{\mathrm{T}}$ . The error bars represent the statistical uncertainties, while the boxes indicate the systematic uncertainty.	Fig2.pdf [15 KiB] HiDef png [699 KiB] Thumbnail [266 KiB] *.C file
Ratio of (left) prompt $\Xi ^+_ c $ to $\Lambda ^+_ c $ production and (right) $\Xi ^+_ c $ to $D^{0}$ production in the $p$Pb (red triangles) and Pb$p$ (blue triangles) data samples as a function of $ p_{\mathrm{T}}$ . The error bars represent the statistical uncertainties, while the empty rectangles indicate the systematic uncertainty. Shaded rectangles denote the branching ratio uncertainty.	Fig3a.pdf [16 KiB] HiDef png [518 KiB] Thumbnail [226 KiB] *.C file
	Fig3b.pdf [16 KiB] HiDef png [468 KiB] Thumbnail [260 KiB] *.C file
Animated gif made out of all figures.	PAPER-2022-041.gif Thumbnail

Supplementary Material [file]

This ZIP file contains supplemetary material for the publication LHCb-PAPER-2022-041. The files are: supplementary.pdf : An overview of the extra figures and tables supplementary.tex : A tex file of the extra figures and tables .pdf, .png, *.eps : The figures in variuous formats	Fig5a.pdf [23 KiB] HiDef png [241 KiB] Thumbnail [195 KiB] *C file
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	supple[..].pdf [317 KiB] HiDef png [574 KiB] Thumbnail [338 KiB] *C file