scholarly journals Semileptonic weak decays of antitriplet charmed baryons in the light-front formalism

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
C. Q. Geng ◽  
Chia-Wei Liu ◽  
Tien-Hsueh Tsai
Keyword(s):  
Light Front ◽  
Charmed Baryons ◽  
Weak Decays

scholarly journals The weak decays of $\Xi^{(')}_{c}\to\Xi$ in the light-front quark model

2021 ◽  
Author(s):  
Hong-Wei Ke ◽  
Qing-Qing Kang ◽  
Xiao-Hai Liu ◽  
Xue-Qian 李学潜 Li
Keyword(s):  
Quark Model ◽  
Light Front ◽  
Weak Decays

scholarly journals Two-body weak decays of doubly charmed baryons

2020 ◽  
Vol 101 (3) ◽  
Author(s):  
Hai-Yang Cheng ◽  
Guanbao Meng ◽  
Fanrong Xu ◽  
Jinqi Zou
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

scholarly journals Charmed baryon decay to a strange baryon plus a pion using QCD sum rules

2019 ◽  
Vol 34 (03n04) ◽  
pp. 1950015 ◽  
Author(s):  
Leonard S. Kisslinger ◽  
Bijit Singha
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Strange Baryon ◽  
Weak Decays ◽  
Baryon Decay

This is an extension of the prediction of strange baryon decays to the decays of charmed baryons using QCD sum rules. Using QCD sum rules, we estimate the decay [Formula: see text]. Although some weak decays of the [Formula: see text] have been measured, since it is difficult to measure [Formula: see text] our estimates should be useful for future experiments.

scholarly journals Two-body hadronic weak decays of antitriplet charmed baryons

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Jinqi Zou ◽  
Fanrong Xu ◽  
Guanbao Meng ◽  
Hai-Yang Cheng
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

scholarly journals Charmed $$\Omega _c$$ weak decays into $$\Omega $$ in the light-front quark model

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
Yu-Kuo Hsiao ◽  
Ling Yang ◽  
Chong-Chung Lih ◽  
Shang-Yuu Tsai
Keyword(s):  
Quark Model ◽  
Recent Observation ◽  
Branching Fractions ◽  
Form Factors ◽  
Weak Decay ◽  
Current Data ◽  
Light Front ◽  
Transition Form ◽  
Decay Modes ◽  
Weak Decays

AbstractMore than ten $$\Omega _c^0$$ Ω c 0 weak decay modes have been measured with the branching fractions relative to that of $$\Omega ^0_c\rightarrow \Omega ^-\pi ^+$$ Ω c 0 → Ω - π + . In order to extract the absolute branching fractions, the study of $$\Omega ^0_c\rightarrow \Omega ^-\pi ^+$$ Ω c 0 → Ω - π + is needed. In this work, we predict $${{\mathcal {B}}}_\pi \equiv {{\mathcal {B}}}(\Omega _c^0\rightarrow \Omega ^-\pi ^+)=(5.1\pm 0.7)\times 10^{-3}$$ B π ≡ B ( Ω c 0 → Ω - π + ) = ( 5.1 ± 0.7 ) × 10 - 3 with the $$\Omega _c^0\rightarrow \Omega ^-$$ Ω c 0 → Ω - transition form factors calculated in the light-front quark model. We also predict $${{\mathcal {B}}}_\rho \equiv {{\mathcal {B}}}(\Omega _c^0\rightarrow \Omega ^-\rho ^+)=(14.4\pm 0.4)\times 10^{-3}$$ B ρ ≡ B ( Ω c 0 → Ω - ρ + ) = ( 14.4 ± 0.4 ) × 10 - 3 and $${{\mathcal {B}}}_e\equiv {{\mathcal {B}}}(\Omega _c^0\rightarrow \Omega ^-e^+\nu _e)=(5.4\pm 0.2)\times 10^{-3}$$ B e ≡ B ( Ω c 0 → Ω - e + ν e ) = ( 5.4 ± 0.2 ) × 10 - 3 . The previous values for $${{\mathcal {B}}}_\rho /{{\mathcal {B}}}_\pi $$ B ρ / B π have been found to deviate from the most recent observation. Nonetheless, our $${{\mathcal {B}}}_\rho /{{\mathcal {B}}}_\pi =2.8\pm 0.4$$ B ρ / B π = 2.8 ± 0.4 is able to alleviate the deviation. Moreover, we obtain $${{\mathcal {B}}}_e/{{\mathcal {B}}}_\pi =1.1\pm 0.2$$ B e / B π = 1.1 ± 0.2 , which is consistent with the current data.

scholarly journals Study on $$\Xi _{cc}\rightarrow \Xi _c$$ and $$\Xi _{cc}\rightarrow \Xi '_c$$ weak decays in the light-front quark model

2020 ◽  
Vol 80 (2) ◽  
Author(s):  
Hong-Wei Ke ◽  
Fang Lu ◽  
Xiao-Hai Liu ◽  
Xue-Qian Li
Keyword(s):  
Quark Model ◽  
Form Factors ◽  
Light Front ◽  
Initial State ◽  
Leptonic Decays ◽  
Weak Decays ◽  
The Future

Abstract In this work we study the weak decays of $$\Xi _{cc}\rightarrow \Xi _c$$Ξcc→Ξc and $$\Xi _{cc}\rightarrow \Xi '_c$$Ξcc→Ξc′ in the light-front quark model. Generally, a naive, but reasonable conjecture suggests that the cc subsystem in $$\Xi _{cc}$$Ξcc ( us pair in $$\Xi ^{(')}_c$$Ξc(′)) stands as a diquark with definite spin and color assignments. During the concerned processes, the diquark of the initial state is not a spectator, namely must be broken. A Racah transformation would decompose the original (cc)q into a combination of c(cq) components. Thus we may deal with the decaying c quark alone while keeping the (cq) subsystem as a spectator. With the re-arrangement of the inner structure we calculate the form factors numerically and then obtain the rates of semi-leptonic decays and non-leptonic decays, which will be measured in the future.

Weak decays of charmed baryons

1979 ◽  
Vol 2 (2) ◽  
pp. 117-135 ◽  
Author(s):  
J. G. K�rner ◽  
G. Kramer ◽  
J. Willrodt
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

Nonleptonic weak decays of charmed baryons

1992 ◽  
Vol 46 (3) ◽  
pp. 1042-1059 ◽  
Author(s):  
Hai-Yang Cheng ◽  
B. Tseng
Keyword(s):  
Charmed Baryons ◽  
Weak Decays

scholarly journals SU(3)flavoranalysis of two-body weak decays of charmed baryons

1997 ◽  
Vol 55 (11) ◽  
pp. 7067-7074 ◽  
Author(s):  
K. K. Sharma ◽  
R. C. Verma
Keyword(s):  
Charmed Baryons ◽  
Weak Decays
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