71 citations · 211 across the 18 of their papers we have counts for
18 papers
Triangle and box diagrams in coupled-channel systems from the chiral Lagrangian
Tobias Isken, Xiao-Yu Guo, Yonggoo Heo +2
We perform an analysis of triangle- and box-loop contributions to the generalized potential in the scattering of Goldstone bosons off the J^P= 0^- and 1^- charmed mesons. Particula…
Low-energy constants in the chiral Lagrangian with baryon octet and decuplet fields from Lattice QCD data on CLS ensembles
Matthias F. M. Lutz, Yonggoo Heo, Xiao-Yu Guo
We perform an analysis of Lattice QCD data on baryon octet and decuplet masses based on the chiral SU(3) Lagrangian. Low-energy constants (LEC) are adjusted to describe baryon mass…
A coupled-channel system with anomalous thresholds and unitarity
Csaba L. Korpa, Matthias F. M. Lutz, Xiao-Yu Guo +1
We consider the isospin one-half example system, with coupled channels in the partial wave, chosen such that various p…
Coupled-channel dynamics with chiral long-range forces in the open-charm sector of QCD
Matthias F. M. Lutz, Xiao-Yu Guo, Yonggoo Heo +1
We perform an analysis of Lattice QCD data in the open-charm sector based on the chiral SU(3) Lagrangian. The low-energy constants are adjusted to recover the open-charm meson mass…
From lattice QCD to predictions of scattering phase shifts at the physical point
Xiao-Yu Guo, Yonggoo Heo, Matthias F. M. Lutz
The Hadron Spectrum Collaboration (HSC) presented new results on two of their ensembles for s-wave scattering phase shifts in the open-charm sector of QCD. For such ensembles we ha…
Chiral excitations of open-beauty systems
Xiao-Yu Guo, Matthias F. M. Lutz
We study the scattering of open-beauty mesons and Goldstone bosons as predicted by the chiral SU(3) Lagrangian. The impact of subleading order chiral interactions to systems with $…
On a first order transition in QCD with up, down and strange quarks
Xiao-Yu Guo, Yonggoo Heo, Matthias F. M. Lutz
We consider the quark-mass dependence of the baryon octet and decuplet ground state masses. It is predicted that QCD dynamics implies a first order transition when increasing the s…
A generalized Higgs potential with two degenerate minima for a dark QCD matter scenario
Matthias F. M. Lutz, Yonggoo Heo, Xiao-Yu Guo
We consider the Higgs potential in generalizations of the Standard Model. The possibility of the potential to develop two almost degenerate minima is explored. This would imply tha…
Low-energy constants from charmed baryons on QCD lattices
Yonggoo Heo, Xiao-Yu Guo, Matthias F. M. Lutz
We study the light quark-mass dependence of charmed baryon masses as measured by various QCD lattice collaborations. A global fit to such data based on the chiral SU(3) Lagrangian…
On the convergence of chiral expansions for charmed meson masses in the up, down and strange quark masses
Matthias F. M. Lutz, Xiao-Yu Guo, Yonggoo Heo
We discuss the convergence properties of chiral expansions for the pseudoscalar and vector charmed meson masses based on the chiral SU(3) Lagrangian. Conventional expansion strateg…
On pion and kaon decay constants and chiral SU(3) extrapolations
Xiao-Yu Guo, Matthias F. M. Lutz
We consider the dependence of the pion and kaon decay constants on the up, down and strange quark masses in QCD with strict isospin symmetry. The role of dynamical vector meson deg…
On light vector mesons and chiral SU(3) extrapolations
Xiao-Yu Guo, Matthias F. M. Lutz
A chiral extrapolation of the light vector meson masses in the up, down and strange quark masses of QCD is presented. We apply an effective chiral Lagrangian based on the hadrogene…
On chiral excitations with exotic quantum numbers
Xiao-Yu Guo, Yonggoo Heo, Matthias F. M. Lutz
We consider the flavour sextet of charmed meson resonances with J^P= 1^+ quantum numbers that is predicted by the leading order chiral Lagrangian with up, down and strange quarks.…
A framework for the chiral extrapolation of the charmed baryon ground-state masses
Yonggoo Heo, Xioa-Yu Guo, Matthias F. M. Lutz
We consider the chiral Lagrangian for charmed baryon fields with or quantum numbers. A chiral expansion framework for the baryon ground st…
On the chiral expansion of vector meson masses
Ruchipas Bavontaweepanya, Xiao-Yu Guo, Matthias F. M. Lutz
We study the chiral expansion of meson masses and decay constants using a chiral Lagrangian that was constructed previously based on the hadrogenesis conjecture. The one-loop self…
On chiral extrapolations of charmed meson masses and coupled-channel reaction dynamics
Xiao-Yu Guo, Yonggoo Heo, Matthias F. M. Lutz
We perform an analysis of QCD lattice data on charmed meson masses. The quark-mass dependence of the data set is used to gain information on the size of counter terms of the chiral…
On the convergence of the chiral expansion for the baryon ground-state masses
M. F. M. Lutz, Yonggoo Heo, Xiao-Yu Guo
We study the chiral expansion of the baryon octet and decuplet masses in the isospin limit. It is illustrated that a chiral expansion of the one-loop contributions is rapidly conve…
The heavy mesons in Nambu--Jona-Lasinio model
Xiao-Yu Guo, Xiao-Lin Chen, Wei-Zhen Deng
We propose an extended Nambu--Jona-Lasinio model to include the heavy mesons with the heavy quark symmetry. The quark current-current interaction is generalized to include the heav…