scholarly journals Transition form factors between pseudoscalar and vector mesons in light-front dynamics

2003 ◽  
Vol 67 (11) ◽  
Author(s):  
Bernard L. G. Bakker ◽  
Ho-Meoyng Choi ◽  
Chueng-Ryong Ji
Keyword(s):  
Form Factors ◽  
Light Front ◽  
Transition Form ◽  
Vector Mesons ◽  
Front Dynamics

scholarly journals Frame dependence of transition form factors in light-front dynamics

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Meijian Li ◽  
Yang Li ◽  
Pieter Maris ◽  
James P. Vary
Keyword(s):  
Form Factors ◽  
Light Front ◽  
Transition Form ◽  
Frame Dependence ◽  
Front Dynamics

scholarly journals PSEUDOSCALAR-SCALAR TRANSITION FORM FACTORS IN COVARIANT LIGHT FRONT DYNAMICS

2007 ◽  
Author(s):  
O. M. A. LEITNER ◽  
B. EL-BENNICH ◽  
B. LOISEAU ◽  
J. P. DEDONDER
Keyword(s):  
Form Factors ◽  
Light Front ◽  
Transition Form ◽  
Front Dynamics

MODEL INDEPENDENT CONSTRAINTS ON HADRON FORM FACTORS AT LARGE Q2 IN LIGHT-FRONT QCD

2014 ◽  
Vol 25 ◽  
pp. 1460047
Author(s):  
CHUENG-RYONG JI
Keyword(s):  
Hamiltonian Dynamics ◽  
Form Factors ◽  
Light Front ◽  
Large Momentum ◽  
First Principle ◽  
Transition Form ◽  
Front Form ◽  
Model Independent ◽  
Relativistic Hamiltonian Dynamics ◽  
Front Dynamics

Among the three forms of relativistic Hamiltonian dynamics proposed by Dirac in 1949, the front form has the largest number of kinematic generators. This distinction provides useful consequences in the analysis of physical observables in hadron physics. We discuss a rationale for using the front form dynamics, known nowadays as the light-front dynamics (LFD), and present a few explicit examples of hadron phenomenology that the front form uniquely can offer from the first principle QCD. In particular, model independent constraints are provided for the analyses of deuteron form factors and the NΔ transition form factors at large momentum transfer square Q2.

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 Light-front dynamic analysis of transition form factors in the process of

2011 ◽  
Vol 856 (1) ◽  
pp. 95-111 ◽  
Author(s):  
Ho-Meoyng Choi ◽  
Chueng-Ryong Ji
Keyword(s):  
Dynamic Analysis ◽  
Form Factors ◽  
Light Front ◽  
Transition Form
Sign in / Sign up

Export Citation Format

Share Document