The nonrelativistic quark model and the nonleptonic hyperon weak decays

1975 ◽  
Vol 29 (4) ◽  
pp. 548-556
Author(s):  
K. J. Sebastian
2006 ◽  
Vol 21 (01) ◽  
pp. 121-131 ◽  
Author(s):  
HARPREET KAUR ◽  
M. P. KHANNA

Two-body nonleptonic charmless weak decays of Λb baryon involving p (or Λ) have been discussed. The form factors for various transitions are calculated in the nonrelativistic quark model, based on factorization assumption.


2021 ◽  
Author(s):  
Hong-Wei Ke ◽  
Qing-Qing Kang ◽  
Xiao-Hai Liu ◽  
Xue-Qian 李学潜 Li
Keyword(s):  

1966 ◽  
Vol 17 (11) ◽  
pp. 612-613 ◽  
Author(s):  
L. I. Schiff

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
Yu-Kuo Hsiao ◽  
Ling Yang ◽  
Chong-Chung Lih ◽  
Shang-Yuu Tsai

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.


1981 ◽  
Vol 23 (7) ◽  
pp. 1580-1590 ◽  
Author(s):  
M. B. Gavela ◽  
A. Le Yaouanc ◽  
L. Oliver ◽  
O. Pène ◽  
J. C. Raynal

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