Production of $B_c$ or $\bar{B}_c$ meson and its excited states via $\bar{t}$-quark or $t$-quark decays
| dc.creator | Chang, Chao-Hsi | |
| dc.creator | Wang, Jian-Xiong | |
| dc.creator | Wu, Xing-Gang | |
| dc.date | 2007-11-13 | |
| dc.date.accessioned | 2026-07-07T11:13:07Z | |
| dc.date.available | 2026-07-07T11:13:07Z | |
| dc.description | The production of $(b\bar{c})$-quarkonium ($\bar{B}_c$ meson and its excited states) or $(c\bar{b})$-quarkonium ($B_c$ meson and its excited states) via top quark $t$ or top anti-quark $\bar{t}$ decays, $t\to (b\bar{c})+c+W^+$ or $\bar{t}\to (c\bar{b})+\bar{c}+W^-$, respectively is studied within the framework of NRQCD. In addition to the production of the two color-singlet $S$-wave states $|(b\bar{c})(^1S_0)_{\bf 1}>$ or $|(c\bar{b})(^1S_0)_{\bf 1}>$ and $|(b\bar{c})(^3S_1)_{\bf 1}>$ or $|(c\bar{b})(^3S_1)_{\bf 1}>$, the production of the $P$-wave excited $(b\bar{c})$ or $(c\bar{b})$ states, i.e. the four color-singlet $P$-wave states $|(b\bar{c})(^1P_1)_{\bf 1}>$ or $|(c\bar{b})(^1P_1)_{\bf 1}>$, and $(b\bar{c})(^3P_J)_{\bf 1}>$ or $(c\bar{b})(^3P_J)_{\bf 1}>$ (with $J=(1,2,3)$), is also studied. According to the velocity scaling rule of NRQCD, for the production of $P$-wave excited states the contributions from the two color-octet components $|(b\bar{c})(^1S_0)_{\bf 8}>$ or $|(c\bar{b})(^1S_0)_{\bf 8}>$ and $|(b\bar{c})(^3S_1)_{\bf 8}>$ or $|(c\bar{b})(^3S_1)_{\bf 8}>$ are also taken into account. We quantitatively discuss the possibility and the advantages in experimental studies of $B_c$ or $\bar{B}_c$ meson and its excited states via the indirect production at LHC in high luminosity runs and at LHC possible upgraded versions such as SLHC, DLHC, TLHC etc. in future. | |
| dc.description | 39 pages, 3 figures, regular paper | |
| dc.identifier | https://arxiv.org/abs/0711.1898 | |
| dc.identifier | http://arxiv.org/abs/0711.1898 | |
| dc.identifier | Phys.Rev.D77:014022,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.014022 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/191609 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Production of $B_c$ or $\bar{B}_c$ meson and its excited states via $\bar{t}$-quark or $t$-quark decays | |
| dc.type | text |