Search for the doubly heavy baryon Ξ0+bc decaying to J/ψ Ξ0+c

Media type: E-Article
Title: Search for the doubly heavy baryon Ξ0+bc decaying to J/ψ Ξ0+c
Contributor: Aaij, Roel [Author]; Archilli, Flavio [Author]; Bachmann, Sebastian [Author]; Berninghoff, Daniel [Author]; Borsato, Martino [Author]; Caspary, Rowina [Author]; Frau, Giulia [Author]; Gerick, David [Author]; Grabowski, Jascha [Author]; Günther, Paul André [Author]; Han, Xiaoxue [Author]; Hansmann-Menzemer, Stephanie [Author]; Hu, Jiangqiao [Author]; Kopecná, Renata [Author]; Kubat, Jakub [Author]; Leverington, Blake [Author]; Li, Peilian [Author]; Malygina, Hanna [Author]; Marks, Jörg [Author]; Schmelling, Michael [Author]; Skuza, Raphael [Author]; Unverzagt, Daniel Joachim [Author]; Uwer, Ulrich [Author]; Waldi, Roland [Author]; Wang, Chishuai [Author]; Witola, Lukas [Author]; Zavertyaev, M. [Author]; Zhelezov, Alexey [Author]
Published: 2023
Published in: Chinese physics. C, High energy physics and nuclear physics ; 47(2023), 9, Artikel-ID 093001, Seite 1-13
Language: English
DOI: 10.1088/1674-1137/ace9c8
Identifier:

Origination:
Footnote: LHCb Collaboration: R. Aaij, F. Archilli, S. Bachmann, Berninghoff, M. Borsato, R. Caspary, G. Frau, D. Gerick, J. P. Grabowski, P. A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, J. Kubat, B. Leverington, P. Li, H. Malygina, J. Marks, M. Schmelling, R. Skuza, D. J. Unverzagt, U. Uwer, R. Waldi, C. Wang, L. Witola, M. Zavertyaev, A. Zhelezov [und 986 weitere]
Im Titel sind "+" hochgestellt, "bc" und "c" tiefgestellt
Description: A first search for the decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two peaking structures are seen with a local (global) significance of and standard deviations at masses of 6571 and 6694 MeV/, respectively. Upper limits are set on the baryon production cross-section times the branching fraction relative to that of the decay at centre-of-mass energies of 8 and 13 TeV, in the and in the rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to , respectively. Upper limits are presented as a function of the mass and lifetime.
Access State: Open Access

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