4.7 Article

Doubly charmed strange tetraquark

期刊

PHYSICAL REVIEW D
卷 105, 期 3, 页码 -

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AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.105.034020

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  1. NSFC-ISF Grant [3423/19]

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The LHCb experiment at CERN has discovered a doubly charmed isoscalar tetraquark T-cc with specific quantum numbers and decay pattern. They also present a study on its strange companions, further confirming its unique characteristics.
The LHCb experiment at CERN has discovered a doubly charmed isoscalar tetraquark T-cc with the quantum numbers of cc (u) over bar (d) over bar and mass of about 3875 MeV/c(2), decaying to (DD0)-D-0 pi(+) through the intermediate channel D*D-+(0). We present a study of its strange companions with the quantum numbers of cc (q) over bar (s) over bar, where q = u, d and isospin violation is neglected.

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