Heavy P -wave quarkonium production via Higgs decays

Abstract

The production of the heavy quarkonium, i.e., jðcbÞ½ni (or jðbcÞ½ni), jðccÞ½ni, and jðbbÞ½ni-quarkonium [jðQQ 0 Þ½ni-quarkonium for short], through Higgs H 0 boson semiexclusive decays is evaluated within the nonrelativistic quantum chromodynamics (NRQCD) framework, where [n] stands for the production of the two color-singlet S-wave states, jðQQ 0 Þ½ 1 S 0 1 i and jðQQ 0 Þ½ 3 S 1 1 i, the production of the four color-singlet P-wave states, i.e., jðQQ 0 Þ½. Moreover, according to the velocity scaling rule of the NRQCD, the production of the two color-octet components, jðQQ 0 Þg½ 1 S 0 8 i and jðQQ 0 Þg½ 3 S 1 8 i, are also taken into account. The "improved trace technology" to derive the simplified analytic expressions at the amplitude level is adopted, which shall be useful for dealing with these decay channels. If all higher heavy quarkonium states decay completely to the ground states, it should be obtained ΓðH

Production of doubly heavy baryons via Higgs boson decays

“…Therefore, the decay of Higgs boson will be a good platform for studying the indirect production mechanism of doubly heavy hadrons. Many pioneering investigations of the production of doubly heavy meson through Higgs boson's decay have been done not only by experimental groups but also by theorist, i.e., the production of B c , J/ψ and Υ [4][5][6][7][8][9][10]. The analysis of Higgs boson decays also provides a platform for seeking the undetected doubly heavy baryons.…”

Inclusive productions of ϒ(1S,2S,3S) and χb(Sun1, Ma2 2019Phys. Rev. D6050View full textAdd to dashboardCite

“…The Higgs boson decay provides a good chance for the studies on ϒ and χ b because of the large number of H 0 events at the high energy colliders, e.g., the HL-LHC and HE-LHC can produce 1.65 × 10 8 and 5.78 × 10 8 H 0 events each year, respectively [12]. Although the number of H 0 events at the Circular Electron Positron Collider (CEPC) can only reach up to 1.1 × 10 6 per year [12][13][14], the "clean" background of CEPC comparing to LHC may help us to more easily hunt the heavy quarkonium related processes. Pioneering studies of inclusive ϒ and χ b productions via H 0 decay can be found in Refs.…”

“…Pioneering studies of inclusive ϒ and χ b productions via H 0 decay can be found in Refs. [12][13][14]. Qiao et al studied the direct (no feeddown contributions) inclusive production of ϒð1SÞ via H 0 decay, including both color-singlet (CS) and CO contributions [13].…”

“…J þ b þb, were carried out by Liao et al [14]. Note that, in addition to the processes in [14], the other CS process, H 0 → bb½ 3 P ½1 J þ g þ g, might also have remarkable contributions to χ b production. Moreover, we learned from the inclusive productions of heavy quarkonium via the Z boson decay that the 3 S ½8 1 state played a vital role.…”

Inclusive productions of $Υ(1S,2S,3S)$ and $χ_b(1P,2P,3P)$ via the Higgs boson decay

“…The Higgs boson decay provides a good chance for the studies on Υ and χ b because of the large number of H 0 events at the high energy colliders, e.g., the HL-LHC and HE-LHC can produce 1.65 × 10 8 and 5.78 × 10 8 H 0 events each year, respectively [12]. Although the number of H 0 events at the Circular Electron Positron Collider (CEPC) can only reach up to 1.1 × 10 6 per year [12][13][14], the "clean" background of CEPC comparing to LHC may help us to more easily hunt the heavy quarkonium related processes. Pioneering studies of inclusive Υ and χ b productions via H 0 decay can be found in Refs.…”