μ-e conversion in nuclei and Z' physics
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...
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| Autor*in: |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
1993 |
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| Reproduktion: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
|---|---|
| Übergeordnetes Werk: |
in: Nuclear Physics, Section B - Amsterdam : Elsevier, 409(1993), 1, Seite 69-86 |
| Übergeordnetes Werk: |
volume:409 ; year:1993 ; number:1 ; pages:69-86 |
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NLEJ181501740 |
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| 520 | |a 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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. | ||
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(DE-627)NLEJ181501740 (DE-599)GBVNLZ181501740 DE-627 ger DE-627 rakwb eng μ-e conversion in nuclei and Z' physics 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bernabeu, J. oth Nardi, E. oth Tommasini, D. oth in Nuclear Physics, Section B Amsterdam : Elsevier 409(1993), 1, Seite 69-86 (DE-627)NLEJ177218266 (DE-600)1466567-0 0550-3213 nnns volume:409 year:1993 number:1 pages:69-86 http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90446-V GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 409 1993 1 69-86 |
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(DE-627)NLEJ181501740 (DE-599)GBVNLZ181501740 DE-627 ger DE-627 rakwb eng μ-e conversion in nuclei and Z' physics 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bernabeu, J. oth Nardi, E. oth Tommasini, D. oth in Nuclear Physics, Section B Amsterdam : Elsevier 409(1993), 1, Seite 69-86 (DE-627)NLEJ177218266 (DE-600)1466567-0 0550-3213 nnns volume:409 year:1993 number:1 pages:69-86 http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90446-V GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 409 1993 1 69-86 |
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(DE-627)NLEJ181501740 (DE-599)GBVNLZ181501740 DE-627 ger DE-627 rakwb eng μ-e conversion in nuclei and Z' physics 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bernabeu, J. oth Nardi, E. oth Tommasini, D. oth in Nuclear Physics, Section B Amsterdam : Elsevier 409(1993), 1, Seite 69-86 (DE-627)NLEJ177218266 (DE-600)1466567-0 0550-3213 nnns volume:409 year:1993 number:1 pages:69-86 http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90446-V GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 409 1993 1 69-86 |
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(DE-627)NLEJ181501740 (DE-599)GBVNLZ181501740 DE-627 ger DE-627 rakwb eng μ-e conversion in nuclei and Z' physics 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bernabeu, J. oth Nardi, E. oth Tommasini, D. oth in Nuclear Physics, Section B Amsterdam : Elsevier 409(1993), 1, Seite 69-86 (DE-627)NLEJ177218266 (DE-600)1466567-0 0550-3213 nnns volume:409 year:1993 number:1 pages:69-86 http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90446-V GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 409 1993 1 69-86 |
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(DE-627)NLEJ181501740 (DE-599)GBVNLZ181501740 DE-627 ger DE-627 rakwb eng μ-e conversion in nuclei and Z' physics 1993 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier 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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 Bernabeu, J. oth Nardi, E. oth Tommasini, D. oth in Nuclear Physics, Section B Amsterdam : Elsevier 409(1993), 1, Seite 69-86 (DE-627)NLEJ177218266 (DE-600)1466567-0 0550-3213 nnns volume:409 year:1993 number:1 pages:69-86 http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90446-V GBV_USEFLAG_H ZDB-1-SDJ GBV_NL_ARTICLE AR 409 1993 1 69-86 |
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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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. |
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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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. |
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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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ181501740</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210706153849.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">070505s1993 xx |||||o 00| ||eng c</controlfield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ181501740</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVNLZ181501740</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">μ-e conversion in nuclei and Z' physics</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1993</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">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 E"6 models these limits provide quite stringent constraints on the Z' mass and on the ZZ' 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 E"6 origin lighter than a few TeV exists.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="f">Elsevier Journal Backfiles on ScienceDirect 1907 - 2002</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bernabeu, J.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Nardi, E.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tommasini, D.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">in</subfield><subfield code="t">Nuclear Physics, Section B</subfield><subfield code="d">Amsterdam : Elsevier</subfield><subfield code="g">409(1993), 1, Seite 69-86</subfield><subfield code="w">(DE-627)NLEJ177218266</subfield><subfield code="w">(DE-600)1466567-0</subfield><subfield code="x">0550-3213</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:409</subfield><subfield code="g">year:1993</subfield><subfield code="g">number:1</subfield><subfield code="g">pages:69-86</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://linkinghub.elsevier.com/retrieve/pii/0550-3213(93)90446-V</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_H</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-SDJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">409</subfield><subfield code="j">1993</subfield><subfield code="e">1</subfield><subfield code="h">69-86</subfield></datafield></record></collection>
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