Neutrino, Photon Interaction in Unparticle Physics
| dc.creator | Dutta, Sukanta | |
| dc.creator | Goyal, Ashok | |
| dc.date | 2008-01-14 | |
| dc.date.accessioned | 2026-07-07T11:55:13Z | |
| dc.date.available | 2026-07-07T11:55:13Z | |
| dc.description | We investigate the impact of unparticle physics on the annihilation of relic neutrinos with the neutrinos identified as primary source of ultra high energy (UHE) cosmic ray events, producing a cascade of photons and charged particles. We compute the contribution of the unparticle exchange to the cross-sections $ν\barν\toγγ$ and $ν\barν\to f \bar f$ scattering. We estimate the neutrino photon decoupling temperature from the reaction rate of $ν\barν\toγγ$. We find that inclusion of unparticles can in fact account for the flux of UHE cosmic rays and can also result in the lowering of neutrino - photon decoupling temperature below the QCD phase transition for unparticle physics parameters in a certain range. We calculate the mean free path of these high energy neutrinos annihilating themselves with the relic neutrinos to produce vector and tensor unparticles. | |
| dc.description | 11 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0801.2143 | |
| dc.identifier | http://arxiv.org/abs/0801.2143 | |
| dc.identifier | Phys.Lett.B664:25-30,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2008.05.018 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205174 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Neutrino, Photon Interaction in Unparticle Physics | |
| dc.type | text |