Rescattering mechanism of weak decays of double-charm baryons *

Han, Jia-Jie; Jiang, H. L.; Liu, Wei; Xiao, Z. J.; Yu, Fu-Sheng

doi:10.1088/1674-1137/abec68

Cited by 24 publications

(8 citation statements)

References 107 publications

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“…[75][76][77], the production of tetraquark candidates Z c (3900), Z c (4020) and X(3872) in B c decays has ever been discussed. The contributions from rescattering processes in weak decays are also widely discussed in the literature [78][79][80][81][82][83][84][85][86][87][88]. c is treated as a spectator.…”

Section: Production Of Tmentioning

confidence: 99%

Searching for doubly charmed tetraquark candidates $T_{cc}$ and $T_{cc\bar{s}}$ in $B_c$ decays

Li¹,

He²,

Liu³

et al. 2023

Preprint

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In this work, we propose to search for the exotic doubly charmed meson T + cc and its analog T + ccs in B + c decays, which provide a good environment for the formation of the exotic state containing double charm quarks. Within the molecular scheme, the production of T + cc and T + ccs through various rescattering processes with different intermediate states are investigated. For the moderate values of model parameters, the branching ratios of B + c decaying into T + cc D0 , T + cc D * 0 , T + ccs D0 and T + ccs D * 0 are estimated to be of the order of 10 −7 , 10 −5 , 10 −6 and 10 −4 , respectively, which may be tested by future experiments.

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Section: Production Of Tmentioning

confidence: 99%

Searching for doubly charmed tetraquark candidates $T_{cc}$ and $T_{cc\bar{s}}$ in $B_c$ decays

Li¹,

He²,

Liu³

et al. 2023

Preprint

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“…4. Current researches about weak decays of doubly heavy baryon concentrate on two-body modes and there are few studies on decay modes of triply heavy baryon [50][51][52][53][54][55][56]. In terms of quasi two-body decay approach as well as the idea of quark-diquark correspondence, the transition ++ ccc → T 8/10 D D might be related to However, it is necessary to point out that the above relationships between decay widths are obtained in the flavor SU(3) symmetry limit, in which the mass differences between final state hadrons have been ignored.…”

Section: Nonleptonic ++ CCC Decaysmentioning

confidence: 99%

Deciphering weak decays of triply heavy baryons by SU(3) analysis

Huang

Zhang

2021

Eur. Phys. J. C

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Baryons with three heavy quarks are the last missing pieces of the lowest-lying baryon multiplets in the quark model after the discovery of doubly heavy baryons. In this work, we study nonleptonic weak decays of triply heavy baryons $$\Omega _{ccc}^{++}$$ Ω ccc + + , $$\Omega _{bbb}^{-}$$ Ω bbb - , $$\Omega _{ccb}^{+}$$ Ω ccb + , and $$\Omega _{cbb}^{0}$$ Ω cbb 0 . Decay amplitudes for various processes have been parametrized in terms of the SU(3) irreducible nonperturbative amplitudes. A number of relations for the partial decay widths can be deduced from these results that can be examined in future. Some decay channels and cascade decay modes which likely to be used to reconstruct the triply heavy baryons have been also listed.

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“…Including the contribution from the internal W -emission, the relative branching fraction is predicted between 0.81 and 0.83 [11,12]. Additionally, including the rescattering mechanism between the final-state hadrons, the predicted relative branching fraction varies between 0.44 and 0.70 [13]. When the interference between the external and the internal W -emission contributions for both S-and P -wave amplitudes are considered, the relative branching fraction is predicted to be considerably enhanced at 6.74 [14].…”

Section: Introductionmentioning

confidence: 96%

Observation of the doubly charmed baryon decay $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$

Aaij

Abdelmotteleb

Beteta

et al. 2022

J. High Energ. Phys.

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The $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$ Ξ cc + + → Ξ c ′ + π + decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb−1. The $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$ Ξ cc + + → Ξ c ′ + π + decay is reconstructed partially, where the photon from the $$ {\varXi}_c^{\prime +}\to {\varXi}_c^{+}\gamma $$ Ξ c ′ + → Ξ c + γ decay is not reconstructed and the pK−π+ final state of the $$ {\varXi}_c^{+} $$ Ξ c + baryon is employed. The $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$ Ξ cc + + → Ξ c ′ + π + branching fraction relative to that of the $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{+}{\pi}^{+} $$ Ξ cc + + → Ξ c + π + decay is measured to be 1.41 ± 0.17 ± 0.10, where the first uncertainty is statistical and the second systematic.

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Rescattering mechanism of weak decays of double-charm baryons *

Cited by 24 publications

References 107 publications

Searching for doubly charmed tetraquark candidates $T_{cc}$ and $T_{cc\bar{s}}$ in $B_c$ decays

Searching for doubly charmed tetraquark candidates $T_{cc}$ and $T_{cc\bar{s}}$ in $B_c$ decays

Deciphering weak decays of triply heavy baryons by SU(3) analysis

Observation of the doubly charmed baryon decay $$ {\varXi}_{cc}^{++}\to {\varXi}_c^{\prime +}{\pi}^{+} $$

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