Naslov
Photon-neutrino interaction in theta-exact covariant noncommutative field theory

Autori
Horvat, Raul ; Kekez, Dalibor ; Schupp, Peter ; Trampetić, Josip ; You, Jiangyang

Izvornik
Physical Review D - Particles, Fields, Gravitation, and Cosmology (1550-7998) 84 (2011), 4; 045004-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Neutrino interactions; Cosmic rays; Big Bang nucleosynthesis; Noncommutative field theory

Sažetak
Photon-neutrino interactions arise quite naturally in noncommutative field theories. Such couplings are absent in ordinary field theory and imply experimental lower bounds on the energy scale Λ_NC∼|θ|^−2 of noncommutativity. Using nonperturbative methods and a Seiberg-Witten map based covariant approach to noncommutative gauge theory, we obtain θ-exact expressions for the interactions, thereby eliminating previous restrictions to low-energy phenomena. We discuss implications for plasmon decay, neutrino charge radii, big bang nucleosynthesis, and ultrahigh energy cosmic rays. Our results behave reasonably throughout all interaction energy scales, thus facilitating further phenomenological applications.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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