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| DC Field | Value | Language |
|---|---|---|
| dc.creator | Bernabéu, José | - |
| dc.creator | Nardi, Enrico | - |
| dc.creator | Tommasini, Daniele | - |
| dc.date | 2007-12-21T12:22:11Z | - |
| dc.date | 2007-12-21T12:22:11Z | - |
| dc.date | 1993-11-22 | - |
| dc.date.accessioned | 2017-01-31T00:59:28Z | - |
| dc.date.available | 2017-01-31T00:59:28Z | - |
| dc.identifier | Nuclear Physics B 409(1): 69-86 | - |
| dc.identifier | <http://hdl.handle.net/2027.42/30445> | - |
| dc.identifier | http://www.sciencedirect.com/science/article/B6TVC-4719VT3-2P1/2/9966d03cfd3e8dade1d48b51f63ba2cb | - |
| dc.identifier | http://hdl.handle.net/10261/2565 | - |
| dc.identifier | 10.1016/0550-3213(93)90446-V | - |
| dc.identifier.uri | http://dspace.mediu.edu.my:8181/xmlui/handle/2027 | - |
| dc.description | Together with the existence of new neutral gauge bosons, models based on extended gauge groups (rank > 4) often predict also new charged fermions. A mixing of the known fermions with new states with exotic weak-isospin assignments (left-handed singlets and right-handed doublets) will induce tree level flavour changing neutral interactions mediated by Z exchange, while if the mixing is only with new states with ordinary weak-isospin assignments, the flavour changing neutral currents are mainly due to the exchange of the lightest new neutral gauge boson Z'. We show that the present experimental limits on μ-e conversion in nuclei give a nuclear-model-independent bound on the Z-e-μ vertex which is twice as strong as that obtained from μ --> eee. In the case of E6 models these limits provide quite stringent constraints on the Z' mass and on the Z-Z' mixing angle. We point out that the proposed experiments to search for μ-e conversion in nuclei have good chances to find evidence of lepton flavour violation, either in the case that new exotic fermions are present at the electroweak scale, or if a new neutral gauge boson Z' of E6 origin lighter than a few TeV exists. | - |
| dc.description | One of us (D.T.) acknowledges a post-doc fellowship from the Spanish Ministry of Education and Science. This work has been partially supported by CICYT (Spain), under grant AEN/90-0040. | - |
| dc.description | Peer reviewed | - |
| dc.language | eng | - |
| dc.publisher | Elsevier | - |
| dc.rights | closedAccess | - |
| dc.subject | Elementary Particles | - |
| dc.subject | Particle Physics | - |
| dc.subject | Theoretical Physics | - |
| dc.title | μ-e conversion in nuclei and Z' physics | - |
| dc.type | Artículo | - |
| Appears in Collections: | Digital Csic | |
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