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A search for ${\Xi}_{\mathrm{cc}}^{++} \to D^+pK^−π^+$ decays


LHCb Collaboration; Bernet, Roland; Müller, Katharina; Owen, Patrick; Serra, Nicola; Steinkamp, Olaf; Vollhardt, Achim; et al (2019). A search for ${\Xi}_{\mathrm{cc}}^{++} \to D^+pK^−π^+$ decays. Journal of High Energy Physics, 10:124.

Abstract

A search for the ${\Xi}_{cc}^{++}$ baryon through the ${\Xi}_{cc}^{++}$ → D+pK−π+ decay is performed with a data sample corresponding to an integrated luminosity of 1.7 $fb^{−1}$ recorded by the LHCb experiment in pp collisions at a centre-of-mass energy of 13 TeV. No significant signal is observed in the mass range from the kinematic threshold of the decay to 3800 MeV/c2. An upper limit is set on the ratio of branching fractions $\mathrm{\mathcal{R}}=\frac{\mathrm{\mathcal{B}}\left({\Xi}_{cc}^{++}\to {D}^{+}{pK}^{-}{\pi}^{+}\right)}{\mathrm{\mathcal{B}}\left({\Xi}_{cc}^{++}\to {\Lambda}_c^{+}{K}^{-}{\pi}^{+}{\pi}^{+}\right)}$ with $ℛ < 1.7 (2.1) × 10−2$ at the 90% (95%) confidence level at the known mass of the ${\Xi}_{cc}^{++}$ state.

Abstract

A search for the ${\Xi}_{cc}^{++}$ baryon through the ${\Xi}_{cc}^{++}$ → D+pK−π+ decay is performed with a data sample corresponding to an integrated luminosity of 1.7 $fb^{−1}$ recorded by the LHCb experiment in pp collisions at a centre-of-mass energy of 13 TeV. No significant signal is observed in the mass range from the kinematic threshold of the decay to 3800 MeV/c2. An upper limit is set on the ratio of branching fractions $\mathrm{\mathcal{R}}=\frac{\mathrm{\mathcal{B}}\left({\Xi}_{cc}^{++}\to {D}^{+}{pK}^{-}{\pi}^{+}\right)}{\mathrm{\mathcal{B}}\left({\Xi}_{cc}^{++}\to {\Lambda}_c^{+}{K}^{-}{\pi}^{+}{\pi}^{+}\right)}$ with $ℛ < 1.7 (2.1) × 10−2$ at the 90% (95%) confidence level at the known mass of the ${\Xi}_{cc}^{++}$ state.

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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:2019
Deposited On:10 Jan 2020 08:35
Last Modified:18 Feb 2020 11:03
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/JHEP10(2019)124

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