Systematic twist expansion of 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo mathvariant="bold" stretchy="false">(</mml:mo><mml:msub><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi></mml:mrow></mml:msub><mml:mo>,</mml:mo><mml:msub><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mi>b</mml:mi></mml:mrow></mml:msub><mml:mo mathvariant="bold" stretchy="false">)</mml:mo><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>γ</mml:mi

Ryu, Hui-Young; Choi, Ho-Meoyng; Ji, Chueng‐Ryong

doi:10.1103/physrevd.98.034018

Cited by 9 publications

(1 citation statement)

References 49 publications

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“…We expect that our result is useful for the calculation of hard exclusive processes based on the QCD factorization. Especially, the higher twist DAs may be important in the low-Q 2 region [55,56]. It would be of great importance to extend our analysis to the vector mesons with the longitudinal and transverse polarizations for further test of our methodology [49].…”

Section: Discussionmentioning

confidence: 97%

Pseudoscalar meson decay constants and distribution amplitudes up to the twist-4 in the light-front quark model

Arifi,

Choi,

2023

Phys. Rev. D

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Section: Discussionmentioning

confidence: 97%

Pseudoscalar meson decay constants and distribution amplitudes up to the twist-4 in the light-front quark model

Arifi,

Choi,

2023

Phys. Rev. D

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Tensor form factors of P→ P, S, V and A transitions within standard and covariant light-front approaches *

Chang

Wang

2020

Chinese Phys. C

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We investigate the tensor form factors of , and A transitions within the standard light-front (SLF) and the covariant light-front (CLF) quark models (QMs). The self-consistency and Lorentz covariance of CLF QM are analyzed via these quantities, and the effects of zero-mode are discussed. For the and A transitions, besides the inconsistency between the results extracted via longitudinal and transverse polarization states, which is caused by the residual -dependent spurious contributions, we find and analyze a “novel” self-consistence problem of the traditional CLF QM, caused by different strategies for dealing with the trace term in CLF matrix element. A possible solution to the problems of traditional CLF QM is discussed and confirmed numerically. Finally, the theoretical predictions for the tensor form factors of some and ( ) induced and A transitions are updated within the CLF QM with a self-consistent scheme.

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Charm physics with overlap fermions on 2+1-flavor domain wall fermion configurations*

Li 李,

Chen 陈,

Gong 宫

et al. 2024

Chinese Phys. C

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Decay constants of pseudoscalar mesons $D$, $D_s$, $\eta_c$ and vector mesons $D^*$, $D_s^*$, $J/\psi$ are determined from $N_f=2+1$ lattice QCD at a lattice spacing $a\sim0.08$ fm. For vector mesons, the decay constants defined by tensor currents are given in the $\msbar$ scheme at $2$ GeV. The calculation is performed on domain wall fermion configurations generated by the RBC-UKQCD Collaborations and the overlap fermion action is used for the valence quarks. Comparing the current results with our previous ones at a coarser lattice spacing $a\sim0.11$ fm gives us a better understanding of the discretization error. We obtain $f_{D_s^*}^T(\msbar,\mbox{ 2 GeV})/f_{D_s^*}=0.909(18)$ with a better precision than our previous result. Combining our $f_{D_s^*}=277(11)$ MeV with the total width of $D_s^*$ determined in a recent work gives a branching fraction $4.26(52)\times10^{-5}$ for $D_s^*$ leptonic decay.Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Systematic twist expansion of (ηc,ηb)→γ

Cited by 9 publications

References 49 publications

Pseudoscalar meson decay constants and distribution amplitudes up to the twist-4 in the light-front quark model

Pseudoscalar meson decay constants and distribution amplitudes up to the twist-4 in the light-front quark model

Tensor form factors of P→ P, S, V and A transitions within standard and covariant light-front approaches *

Charm physics with overlap fermions on 2+1-flavor domain wall fermion configurations*

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