Strange partners of the doubly charmed tetraquark $$T^{+}_{cc}$$
نویسندگان
چکیده
The spectroscopic parameters and widths of the axial-vector $$T_{cc:s}^{ \textrm{AV}}$$ scalar $$T_{cc:s}^{\textrm{S}}$$ , $$\widetilde{T}_{cc:s}^{ \textrm{S}}$$ strange partners doubly charmed exotic meson $$T_{cc}^{+}$$ with content $$cc\overline{u}\overline{s}$$ are calculated in framework QCD sum rule method. We model $$T_{cc:s}^{\textrm{AV}}$$ as diquark–antidiquark state composed components, whereas particles $$\widetilde{ T}_{cc:s}^{\textrm{S}}$$ built diquarks, respectively. masses current couplings these tetraquarks context two-point approach by taking into account quark, gluon mixed condensates up to dimension 10. full width is found from analysis processes $$T_{cc:s}^{\textrm{AV}} \rightarrow D^{0}D_{s}^{*+}$$ $$ T_{cc:s}^{\textrm{AV}} D^{*}(2007)^{0}D_{s}^{+}$$ . Decays D^{0}D_{s}^{+}$$ $$D^{*}(2007)^{0}D_{s}^{*+}$$ $$D^{0}D_{s}^{+}$$ mesons utilized case $$T_{cc:s}^{\textrm{ S}}$$ $$\widetilde{T}_{cc:s}^{\textrm{S}}$$ partial aforementioned decays determined via strong g_1$$ $$g_2 $$G_1$$ $$G_2$$ $$\widetilde{G}$$ which describe interactions at relevant tetraquark–meson–meson vertices. These computed using three-point method, most appropriate for under study. predictions m=(3995 \pm 143)~\textrm{MeV} $$\Gamma _{\textrm{AV}}=(72 13)~ \textrm{MeV} well $$m_{\textrm{S}}=(4128 142)~\textrm{MeV}$$ \Gamma _{\textrm{S}}=(213 47)~\textrm{MeV}$$ $$\widetilde{m}_{\textrm{S} }=(4035 145)~\textrm{MeV} $$\widetilde{\Gamma }_{\textrm{S}}=(123 32)~\textrm{MeV} obtained present work can be useful future experimental investigations four-quark resonances.
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ژورنال
عنوان ژورنال: European Physical Journal Plus
سال: 2023
ISSN: ['2190-5444']
DOI: https://doi.org/10.1140/epjp/s13360-023-04260-2