4 papers
Rare Radiative Decays of Z boson into S- and P-wave Charmonium within the Bethe-Salpeter Model
Asif Ali, Yi-Jie Li, Guang-Zhi Xu +1
We employ the Bethe-Salpeter (BS) model to investigate radiative decays of the Z boson into charmonium. Within the instantaneous approximation of the BS equation, we analyze the re…
Rare Exclusive Decays of the Z-boson into S-wave Quarkonia within the Bethe-Salpeter Formalism
Asif Ali, Yi-Jie Li, Guang-Zhi Xu +1
This paper investigates the rare decays of the Z boson into S-wave quarkonia within the Bethe-Salpeter formalism. Both the production of double S-wave quarkonia and radiative decay…
Associated Production of Charmonia-Bottomonia with Color-Octet Channels at the Z Factory, CEPC and FCC-ee
Xiao-Peng Wang, Yi-Jie Li, Guang-Zhi Xu +1
Within the nonrelativistic QCD (NRQCD) framework, we investigate the associated production of charmonia+bottomonia at future super factory and at the CEPC/FCC-ee. The color-oct…
Order- corrections to heavy quark fragmentation to S-wave heavy quarkonium
Sai Cui, Yi-Jie Li, Guang-Zhi Xu +1
Within the framework of nonrelativistic quantum chromodynamics (NRQCD) factorization, we compute the relativistic corrections to the fragmentation of a heavy q…