paper

Pole analysis on the doubly charmed meson in mass spectrum

arXiv:2108.06002 · doi:10.1103/PhysRevD.105.L051507

Abstract

In this paper we study the scattering amplitudes of - coupled channels based on -matrix within the Chew-Mandelstam formalism. The invariant mass spectrum of LHCb is fitted and the pole parameters of the are extracted. The analysis of pole behavior suggests that the may originate from a virtual state and is formed as a result of an interplay between an attractive interaction between and and coupling to channel.

7 pages, 4 figures, to be the same as the published version

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