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Search for the doubly charmed baryon Ξ[+ over cc]

Author(s)
Williams, Michael
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Abstract
A search for the doubly charmed baryon Ξ[+ over cc] in the decay mode Ξ[+ over cc] → Λ[+ over c]K[superscript −]π[superscript +] is performed with a data sample, corresponding to an integrated luminosity of 0.65 fb[superscript −1], of pp collisions recorded at a centre-of-mass energy of 7 TeV. No significant signal is found in the mass range 3300-3800 MeV/c [superscript 2]. Upper limits at the 95% confidence level on the ratio of the Ξ[+ over cc] production cross-section times branching fraction to that of the Λ[+ over c] , R, are given as a function of the Ξ[+ over cc] mass and lifetime. The largest upper limits range from R < 1.5 × 10[superscript −2] for a lifetime of 100 fs to R < 3.9 × 10[superscript −4] for a lifetime of 400 fs.
Date issued
2013-12
URI
http://hdl.handle.net/1721.1/86024
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aaij, R., B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, et al. “Search for the Doubly Charmed Baryon Ξ[+ over cc].” J. High Energ. Phys. 2013, no. 12 (December 2013). © CERN, for the benefit of the LHCb collaboration
Version: Author's final manuscript
ISSN
1029-8479

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