The doubly charmed strange tetraquark
Abstract
The LHCb experiment at CERN has discovered a doubly charmed isoscalar tetraquark Tcc with the quantum numbers of c c u d and mass of about 3875 MeV/c2, decaying to D0 D0 π+ through the intermediate channel D*+ D0. We present a study of its strange companions with the quantum numbers of c c q s, where q = u, d and isospin violation is neglected.
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