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Title: Search for the doubly charmed baryon Ξ + cc
Authors: R., Aaij
B., Adeva
M., Adinolfi (...)
Keywords: Spectroscopy;Charm physics;Particle and resonance production;Hadron-Hadron Scattering
Issue Date: 2013
Publisher: H. : ĐHQGHN
Abstract: A search for the doubly charmed baryon Ξ + cc in the decay mode Ξ + cc → Λ + c K − π + is performed with a data sample, corresponding to an integrated luminosity of 0.65 fb −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 2 . Upper limits at the 95% confidence level on the ratio of the Ξ + cc production cross-section times branching fraction to that of the Λ + c , R, are given as a function of the Ξ + cc mass and lifetime. The largest upper limits range from R < 1.5 × 10 −2 for a lifetime of 100 fs to R < 3.9 × 10 −4 for a lifetime of 400 fs
Description: Journal of High Energy Physics 2013(12)
Appears in Collections:Bài báo của ĐHQGHN trong Scopus

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