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نویسندگان
چکیده
The values of the masses particles involved in decay ${T}_{cc}^{+}\ensuremath{\rightarrow}{D}^{*+}{D}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{D}^{0}{D}^{0}$ suggest that due to final state interactions transition vertex ${T}_{cc}^{+}\ensuremath{\rightarrow}{D}^{*+}{D}^{0}$ there may be triangle logarithmic singularities. We discuss their possible role and show tree approximation for calculating widths ${T}_{cc}^{+}\ensuremath{\rightarrow}({D}^{*+}{D}^{0}+{D}^{*0}{D}^{+})\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{D}^{0}{D}^{0}$, ${\ensuremath{\pi}}^{0}{D}^{0}{D}^{+}$, $\ensuremath{\gamma}{D}^{0}{D}^{+}$ is quite sufficient at current level measurement accuracy.
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.105.096038