Pair Production of Majorana Neutrinos by Annihilation of Charged Particles in High Energy Collision

Assuming that neutrinos have non-vanishing magnetic moments, we discuss the possibility of pair production through annihilation of charged fermions in high-energy collisions. Adopting the Pauli interaction for photon-neutrino coupling, we calculate the neutrino pair production cross section in the photon channel and compare the result with the standard model in Z(0) channel, we demonstrated that the enhancement of the production rate for Majorana neutrino pairs over the standard model rate can be possible at the center-of-mass energy of 10 - 100 TeV for the Large Hadron Collider or the ultra-high-energy cosmic Ray when the transition magnetic moment is not smaller than 10(-9) - 10(-10) mu(B).The authors would like to thank Byung-Cu Cheon for useful discussions. This work is supported by the World Class University (WCU) project of the Korean Ministry of Education, Science and Technology (R33-2008-000-10087-0)