Kuang-Ta Chao

activity

19951997

collaborators

7 papers

hep-ph1997

Gluon fragmentation to ^3D_J quarkonia

Cong-feng Qiao, Feng Yuan, Kuang-Ta Chao

We present a calculation of the leading order QCD fragmentation functions for gluons to split into spin-triplet D-wave quarkonia. We apply them to evaluate the gluon fragmentation…

hep-ph1996

QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in $α_{s}$

Han-Wen Huang, Kuang-Ta Chao

The decay rates of P-wave heavy quarkonia to light hadrons are presented to leading order in $v^{2}$ and next-to-leading order in $α_{s}$ . They include contributions from both the colo…

hep-ph1996

Top Quark Decays into Heavy Quark Mesons

Cong-Feng Qiao, Chong Sheng Li, Kuang-Ta Chao

For top quark decays into heavy quark mesons $Υ$ and $B ˉ_{c}^{*}$ , a complete calculation to the leading order both in QCD coupling constant $α_{s}$ and in $v$ , the typical velocit…

hep-ph1996

Possible retardation effects of quark confinement on the meson spectrum

Cong-feng Qiao, Han-Wen Huang, Kuang-Ta Chao

The reduced Bethe-Salpeter equation with scalar confinement and vector gluon exchange is applied to quark-antiquark bound states. The so called intrinsic flaw of Salpeter equation…

hep-ph1996

Electromagnetic Annihilation Rates of $χ_{c 0}$ and $χ_{c 2}$ with Both Relativistic and QCD Radiative Corrections

Han-Wen Huang, Cong-Feng Qiao, Kuang-Ta Chao

We estimate the electromagnetic decay rates of $χ_{c 0} \to γ γ$ and $χ_{c 2} \to γ γ$ by taking into account both relativistic and QCD radiative corrections. The decay ra…

hep-ph1996

QCD Radiative Correction to the Hadronic Annihilation Rate of $1^{+-}$ Heavy Quarkonium

Han-Wen Huang, Kuang-Ta Chao

Hadronic annihilation rate of $1^{+-}$ heavy quarkonium is given to next-to-leading order in $α_{s}$ and leading order in $v^{2}$ using a recently developed factorization formalism whi…

Gluon fragmentation to ^3D_J quarkonia

QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in αs​

Top Quark Decays into Heavy Quark Mesons

Possible retardation effects of quark confinement on the meson spectrum

Electromagnetic Annihilation Rates of χc0​ and χc2​ with Both Relativistic and QCD Radiative Corrections

QCD Radiative Correction to the Hadronic Annihilation Rate of 1+− Heavy Quarkonium

QCD predictions for annihilation decays of P-wave quarkonia to next-to-leading order in $α_{s}$

Electromagnetic Annihilation Rates of $χ_{c 0}$ and $χ_{c 2}$ with Both Relativistic and QCD Radiative Corrections

QCD Radiative Correction to the Hadronic Annihilation Rate of $1^{+-}$ Heavy Quarkonium