Gluon-Photon mixing in dense QCD
| dc.creator | Nguyen, Van Hieu | |
| dc.creator | Pham, Xuan-Yem | |
| dc.date | 2001-01-30 | |
| dc.date | 2001-02-06 | |
| dc.date.accessioned | 2026-07-07T03:43:47Z | |
| dc.date.available | 2026-07-07T03:43:47Z | |
| dc.description | At high baryonic density with the formation of a diquark condensate $Δ\neq 0$, the QCD color symmetry is spontaneously broken. Being massive by the Anderson-Higgs mechanism, gluon and photon should mix together within two linear combinations due to the color non-conservation. Consequently a gluon $\widetilde{G}$ could decay into an $e^- e^+$ pair via its photon component. With a low invariant mass (about a few ten MeV) and an extremely narrow width peaking above the continuum background, the purely leptonic decay of a strongly-interacting gluon $\widetilde{G} \to e^- + e^+$ constitutes a very distinctive signature of the color superconductivity phase. By a similar scenario of gluon-$Z$ mixing, another "missing-energy" decay into invisible neutrinos $\widetilde{G} \to ν+\barν$ could arise, its amplitude is however $(Δ/M_Z)^2$ power-suppressed. | |
| dc.description | LaTeX, 8 pages + 1 postscript figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0101332 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0101332 | |
| dc.identifier | Phys.Rev. D64 (2001) 074009 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40352 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Gluon-Photon mixing in dense QCD | |
| dc.type | text |