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  Inverse neutrinoless double beta decay revisited: Neutrinos, Higgs triplets, and a muon collider

Rodejohann, W. (2010). Inverse neutrinoless double beta decay revisited: Neutrinos, Higgs triplets, and a muon collider. Physical Review D, 81(11): 114001, pp. 1-10. doi:10.1103/PhysRevD.81.114001.

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 Creators:
Rodejohann, Werner1, Author           
Affiliations:
1Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907556              

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 Abstract: We revisit the process of inverse neutrino-less double beta decay (e e -> W W) at future linear colliders. The cases of Majorana neutrino and Higgs triplet exchange are considered. We also discuss the processes e mu -> W W and mu mu -> W W, which are motivated by the possibility of muon colliders. For heavy neutrino exchange and center of-mass energies larger than 1 TeV, we show that masses up to 106 (105) GeV could be probed for e-e and e-mu machines, respectively. The stringent limits for mixing of heavy neutrinos with muons render mu mu -> W W less promising, even though this process is not constrained by limits from neutrino-less double beta decay. If Higgs triplets are responsible for inverse neutrino-less double beta decay, observable signals are only possible if a very narrow resonance is met. We also consider unitarity aspects of the process in case both Higgs triplets and neutrinos are exchanged. An exact see-saw relation connecting low energy data with heavy neutrino and triplet parameters is found.

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Language(s): eng - English
 Dates: 2010-06-01
 Publication Status: Issued
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 Rev. Type: -
 Identifiers: eDoc: 477119
URI: http://arxiv.org/abs/1005.2854
DOI: 10.1103/PhysRevD.81.114001
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 81 (11) Sequence Number: 114001 Start / End Page: 1 - 10 Identifier: -