Chiral Extrapolation of Lattice Data of Λ b →Λ c Form Factors

2019 ◽  
Vol 71 (2) ◽  
pp. 175
Author(s):  
Rui-Cheng Li ◽  
Xin-Heng Guo
Keyword(s):  
Form Factors ◽  
Lattice Data ◽  
Chiral Extrapolation

scholarly journals Electric form factors of the octet baryons from lattice QCD and chiral extrapolation

2014 ◽  
Vol 90 (3) ◽  
Author(s):  
P. E. Shanahan ◽  
R. Horsley ◽  
Y. Nakamura ◽  
D. Pleiter ◽  
P. E. L. Rakow ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Form Factors ◽  
Chiral Extrapolation ◽  
Octet Baryons

Bc → J/ψ tensor form factors at large momentum recoil

2021 ◽  
pp. 2150135
Author(s):  
Dandan Shen ◽  
Huimin Ren ◽  
Fan Wu ◽  
Ruilin Zhu
Keyword(s):  
Form Factors ◽  
Distance Matrix ◽  
Relativistic Correction ◽  
Large Momentum ◽  
Matrix Elements ◽  
Leading Order ◽  
Lattice Data ◽  
Tensor Form ◽  
Long Distance ◽  
Current Form

We present a next-to-leading order (NLO) relativistic correction to [Formula: see text] tensor form factors within nonrelativistic QCD (NRQCD). We also consider complete Dirac bilinears [Formula: see text] with [Formula: see text] matrices [Formula: see text] in the [Formula: see text] transition. The relation among different current form factors is given and it shows that symmetries emerge in the heavy bottom quark limit. For a phenomenological extension, we propose to extract the long-distance matrix elements (LDMEs) for [Formula: see text] meson from the recent HPQCD lattice data and the NLO form factors at large momentum recoil.

scholarly journals Chiral extrapolation and determination of low-energy constants from lattice data

2010 ◽  
Vol 692 (3) ◽  
pp. 184-188 ◽  
Author(s):  
G. Ecker ◽  
P. Masjuan ◽  
H. Neufeld
Keyword(s):  
Low Energy ◽  
Lattice Data ◽  
Chiral Extrapolation ◽  
Energy Constants

scholarly journals Chiral extrapolation of nucleon magnetic form factors

2007 ◽  
Vol 75 (7) ◽  
Author(s):  
P. Wang ◽  
D. B. Leinweber ◽  
A. W. Thomas ◽  
R. D. Young
Keyword(s):  
Form Factors ◽  
Chiral Extrapolation ◽  
Magnetic Form Factors

Some QCD/gravity intersections

2016 ◽  
Vol 31 (28n29) ◽  
pp. 1645032
Author(s):  
O. V. Teryaev
Keyword(s):  
Equivalence Principle ◽  
Energy Momentum Tensor ◽  
Form Factors ◽  
Momentum Tensor ◽  
Matrix Elements ◽  
Lattice Data ◽  
Hadron Structure ◽  
The Matrix ◽  
Dimensional Gravity ◽  
Quark Transverse Momentum

Gravitational form factors are the matrix elements of the Belinfante energy momentum tensor (EMT) which naturally incorporate the hadron structure and the equivalence principle. The relocalization property allowing to transform EMT to the Belinfante form provides the “kinematical” counterpart of the famous [Formula: see text] problem. The equivalence principle may be approximately valid for quarks and gluons separately in non-perturbative (NP)QCD, and this conjecture is supported by the experimental and lattice data. The extra-dimensional gravity leading to holographic AdS/QCD is supporting the relation of quark transverse momentum to the Regge slope, discovered by V.N. Gribov.

scholarly journals Electromagnetic transition form factors, E2/M1 and C2/M1 ratios of the baryon decuplet

2020 ◽  
Vol 80 (11) ◽  
Author(s):  
June-Young Kim ◽  
Hyun-Chul Kim
Keyword(s):  
Lattice Qcd ◽  
Empirical Data ◽  
Pion Mass ◽  
Form Factors ◽  
The Self ◽  
Transition Form ◽  
Lattice Data ◽  
Electromagnetic Transition ◽  
Self Consistent ◽  
Good Agreement

AbstractWe investigate the electromagnetic transition form factors of the baryon decuplet to the baryon octet, based on the self-consistent SU(3) chiral quark-soliton model, taking into account the effects of explicit breaking of flavor SU(3) symmetry. We emphasize the $$Q^2$$ Q 2 dependence of the electromagnetic $$N\rightarrow \Delta $$ N → Δ transition form factors and the ratios of E2/M1 and C2/M1 in comparison with the experimental and empirical data. In order to compare the present results of the electromagnetic transition form factors of the $$N\rightarrow \Delta $$ N → Δ with those from lattice QCD, we evaluate the form factors with the pion mass deviated from its physical value. The results of the E2/M1 and C2/M1 ratios are in good agreement with the lattice data. We also present the results of the electromagnetic transition form factors for the decuplet to the octet transitions.

scholarly journals Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation

2014 ◽  
Vol 89 (7) ◽  
Author(s):  
P. E. Shanahan ◽  
R. Horsley ◽  
Y. Nakamura ◽  
D. Pleiter ◽  
P. E. L. Rakow ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Form Factors ◽  
Chiral Extrapolation ◽  
Magnetic Form Factors ◽  
Octet Baryons

scholarly journals Chiral Extrapolation of Lattice Data for Heavy Meson Hyperfine Splittings

2005 ◽  
Vol 38 (1) ◽  
pp. 17-29 ◽  
Author(s):  
X.-H. Guo ◽  
P. C. Tandy ◽  
A. W. Thomas
Keyword(s):  
Heavy Meson ◽  
Lattice Data ◽  
Chiral Extrapolation ◽  
Hyperfine Splittings
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