Naslov
Neutrino dipole moments and charge radii in non-commutative space-time

Autori
Minkowski, Peter ; Schupp, Peter ; Trampetić, Josip

Izvornik
European physical journal C : particles and fields (1434-6044) 37 (2004); 123-128

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

Ključne riječi
neutrino; dipole moment; charge radii; non-commutative space-time

Sažetak
In this paper we obtain a bound $\Lambda_{; ; \rm NC}; ; < 150$ TeV on the scale of space-time noncommutativity considering photon-neutrino interactions. We compute "star-dipole moments" and "star-charge radii" originating from space-time noncommutativity and compare them with the dipole moments calculated in the neutrino-mass extended standard model (SM). The computation depends on the nature of the neutrinos, Dirac versus Majorana, their mass and the energy scale. We focus on Majorana neutrinos. The "star-charge radius" is found to be $r^* = \sqrt{; ; ; |< r^2_{; ; ; \nu}; ; ; >_{; ; ; \rm NC}; ; ; |}; ; ; =|3\sum_{; ; ; i=1}; ; ; ^3 ({; ; ; \theta}; ; ; ^{; ; ; 0i}; ; ; )^2|^{; ; ; 1/4}; ; ; < 1.6 \times 10^{; ; ; -19}; ; ; $ cm at $\Lambda_{; ; ; \rm NC}; ; ; = 150$ TeV.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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