Heavy mesons to open-charmed tetraquark decays
Open Access
- 8 October 2025
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 112 (7)
Abstract
Motivated by the recent observations of T c s 0 * ( 2870 ) 0 , T c s ¯ 0 * ( 2900 ) 0 , and T c s ¯ 0 * ( 2900 ) + + open-charmed tetraquark states by LHCb, we study the decays of heavy mesons to these open-charmed tetraquark states ( T ) using a topological amplitude approach. We first obtain the T → D P and D S strong decay amplitudes by decomposing them into several topological amplitudes, where P is a light pseudoscalar particle and S is a low-lying scalar particle. Subsequently, weak decay amplitudes of B ¯ → D T ¯ , D ¯ T , B ¯ → T P , and T S decays are decomposed topologically. In addition, B c − → T T ¯ decays are also discussed. Using these results, modes with an unambiguous exotic interpretation in flavor are highlighted.Keywords
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Funding Information
- National Science and Technology Council (NSTC-112-2112-M-033-006, NSTC-113-2112-M-033-004)
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