Hunting for the hidden-charm molecular states with strange quarks in 
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 and 
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 decays

Wu, Qi; Chen, Yan-Ke; Li, Gang; Liu, S.D.; Chen, Dian-Yong

doi:10.1103/physrevd.107.054044

Phys. Rev. D

2023

DOI: 10.1103/physrevd.107.054044

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Hunting for the hidden-charm molecular states with strange quarks in B and Bs decays

Qi Wu

Yan-Ke Chen

Gang Li

et al.

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2024

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Cited by 5 publications

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Roles of the Tcs¯0(2900)0 and
Lyu,
Lyu,
Duan
et al. 2024
Phys. Rev. D
6
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Motivated by the recent LHCb observations of Tcs¯0(2900)0 and Tcs¯0(2900)++ in the processes B0→D¯0Ds+π− and B+→D−Ds+π+, we have investigated the decay B−→Ds+K−π− by taking into account the contributions from the S-wave vector-vector interactions, and the S-wave Ds+K− interactions. Our results show that the Ds+K− invariant mass distribution has an enhancement structure near the threshold, associated with the D0*(2300), which is in good agreement with the Belle measurements. We have also predicted the Ds+π− invariant mass distribution and the Dalitz plot, which show the significant signal of the Tcs¯0(2900). With the same formalism, the Ds−Ks0 invariant mass distribution of the process B0→Ds−Ks0π+ measured by Belle could be well reproduced, and the peak of Tcs¯0(2900) is expected to be observed around 2900 MeV in the Ds−π+ invariant mass distribution. Our results could be tested by the Belle II and LHCb experiments in the future. Published by the American Physical Society 2024

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Roles of the Tcs¯0(2900)0 and
Lyu,
Lyu,
Duan
et al. 2024
Phys. Rev. D
6
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0
0
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Hidden charmonium decays of spin-2 partner of X(3872)

Zheng,

Cai,

et al. 2024

Phys. Rev. D

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The Belle Collaboration recently reported a promising candidate for the spin-2 D*D¯* partner of the X(3872), called the X2 for short, having a mass of (4014.3±4.0±1.5) MeV and a width of (4±11±6) MeV. Assuming the X2 as a pure molecule of the D*D¯*, we calculated in detail the hidden charmonium decays of the X2→J/ψV and X2→ηcP via the intermediate meson loops, where V=ρ0,ω and P=π0,η,η′. The results indicate that the decay widths are strongly dependent on the X2 mass. At present center value of the mass 4014.3 MeV, the width for the X2→J/ψρ0 is predicted to be a few tens of keV, while it is on the order of 102−3 keV for the X2→J/ψω; the predicted width for the X2→ηcπ0 is about a few keV, while the widths for X2→ηcη and ηcη′ are around a few tens and tenths of keV, respectively. We also investigated the dependence of the ratios between these widths on the X2 mass and on the η−η′ mixing angle, which may be good quantities for experiments. We hope that the present calculations will be checked experimentally in the future. Published by the American Physical Society 2024

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Hidden charm decays of Y(4626) in a Ds+
Yue,
Pan,
Chen
2024
Phys. Rev. D*
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In this work, we investigate the hidden charm decays properties of Y(4626), where Y(4626) is assigned as a S−wave Ds*+Ds1(2536)− molecular state with JPC=1−−. The partial widths of the processes Y(4626)→J/ψη, J/ψη′, ηcϕ, and χcJϕ,(J={0,1,2}) are estimated by employing the effective Lagrangian approach. The present estimations indicate that the partial widths of the J/ψη and J/ψη′ channels are of the order of 1 MeV, while the one of χc1ϕ is of the order of 0.1 MeV. Thus, we propose to further examine the molecular interpretation of Y(4626) by searching it in the cross sections for the e+e−→J/ψη(′) processes, which should be accessible by the BES III and Belle II. Published by the American Physical Society 2024

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Hunting for the hidden-charm molecular states with strange quarks in B and Bs decays

Cited by 5 publications

References 74 publications

Roles of the Tcs¯0(2900)0 and
Lyu,
Lyu,
Duan
et al. 2024
Phys. Rev. D
6
0
0
0
View full text Add to dashboard Cite

Roles of the Tcs¯0(2900)0 and
Lyu,
Lyu,
Duan
et al. 2024
Phys. Rev. D
6
0
0
0
View full text Add to dashboard Cite

Hidden charmonium decays of spin-2 partner of X(3872)

Hidden charm decays of Y(4626) in a Ds+
Yue,
Pan,
Chen
2024
Phys. Rev. D*
0
0
0
0
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Hunting for the hidden-charm molecular states with strange quarks in B and Bs decays

Cited by 5 publications

References 74 publications

Roles of the Tcs¯0(2900)0 and Lyu, Lyu, Duan et al. 2024Phys. Rev. D6000View full textAdd to dashboardCite

Roles of the Tcs¯0(2900)0 and Lyu, Lyu, Duan et al. 2024Phys. Rev. D6000View full textAdd to dashboardCite

Hidden charmonium decays of spin-2 partner of X(3872)

Hidden charm decays of Y(4626) in a Ds*+Yue, Pan, Chen 2024Phys. Rev. D0000View full textAdd to dashboardCite

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About

Roles of the Tcs¯0(2900)0 and
Lyu,
Lyu,
Duan
et al. 2024
Phys. Rev. D
6
0
0
0
View full text Add to dashboard Cite

Roles of the Tcs¯0(2900)0 and
Lyu,
Lyu,
Duan
et al. 2024
Phys. Rev. D
6
0
0
0
View full text Add to dashboard Cite

Hidden charm decays of Y(4626) in a Ds+
Yue,
Pan,
Chen
2024
Phys. Rev. D*
0
0
0
0
View full text Add to dashboard Cite