منابع مشابه
Neutrino - Photon Interactions at Low Energy
We discuss ν−γ interactions in the presence of a homogeneous magnetic field with energies less than pair production threshold. The neutrinos are taken to be massless with only standardmodel couplings. The magnetic field fulfills the dual purpose of inducing an effective neutrinophoton vertexes and of modifying the photon dispersion relation. Our conclusion is ν − γ interactions are too weak to ...
متن کاملLow-energy neutrino-photon inelastic interactions
The computation of the polarized amplitudes and cross section of the processes γν → γγν, γγ → γνν̄ and νν̄ → γγγ is described. We used an effective lagrangian approach for energies below the threshold for e+e− pair production and the complete computation at higher energies for application in supernova dynamics. Leading contributions of physics beyond the SM are also commented.
متن کاملFive-leg photon–neutrino interactions
In a first part, we justify the feasibility of substituting a photon leg by a neutrino current in the Euler–Heisenberg Lagrangian to obtain an effective Lagrangian for the process γν → γγν and its crossed reactions. We establish the link between these processes and the four-photon scattering in both the Standard Model and the effective theory. As an application, we compute in this effective the...
متن کاملHigh energy photon interactions at the LHC
Experimental prospects for studying high-energy photon-photon and photon-proton interactions at the CERN Large Hadron Collider (lhc) are discussed. Cross sections are calculated for many electroweak and beyond the Standard Model processes. Selection strategies based on photon interaction tagging techniques are studied. Assuming a typical lhc multipurpose detector, various signals and their irre...
متن کاملPhoton-neutrino interactions in strong magnetic field
The two-photon two-neutrino interaction induced by magnetic field is investigated. In particular the processes γγ → νν̄ and γ → γνν̄ are studied in the presence of strong magnetic field. An effective Lagrangian and partial amplitudes of the processes are presented. Neutrino emissivities due to the reactions γγ → νν̄ and γ → γνν̄ are calculated taking into account of the photon dispersion and large ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1998
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.59.013012