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Neutrino dipole moments and charge radii in non-commutative space-time (CROSBI ID 107316)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Minkowski, Peter ; Schupp, Peter ; Trampetić, Josip Neutrino dipole moments and charge radii in non-commutative space-time // European physical journal C : particles and fields, 37 (2004), 123-128-x

Podaci o odgovornosti

Minkowski, Peter ; Schupp, Peter ; Trampetić, Josip

engleski

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

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.

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

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Podaci o izdanju

37

2004.

123-128-x

objavljeno

1434-6044

Povezanost rada

Fizika

Indeksiranost