Lepton flavor violation with light vector bosons
New sub-GeV vector bosons with couplings to muons but not electrons have been discussed in order to explain the muon's magnetic moment, the gap of high-energy neutrinos in IceCube or the proton radius puzzle. If such a light Z′ not only violates lepton universality but also lepton flavor, as ex...
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| Format: | Article |
| Language: | English |
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Elsevier
2016-07-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026931630154X |
| _version_ | 1811262273439662080 |
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| author | Julian Heeck |
| author_facet | Julian Heeck |
| author_sort | Julian Heeck |
| collection | DOAJ |
| description | New sub-GeV vector bosons with couplings to muons but not electrons have been discussed in order to explain the muon's magnetic moment, the gap of high-energy neutrinos in IceCube or the proton radius puzzle. If such a light Z′ not only violates lepton universality but also lepton flavor, as expected for example from the recent hint for h→μτ at CMS, the two-body decay mode τ→μZ′ opens up and for MZ′<2mμ gives better constraints than τ→3μ already with 20-year-old ARGUS limits. We discuss the general prospects and motivation of light vector bosons with lepton-flavor-violating couplings. |
| first_indexed | 2024-04-12T19:22:18Z |
| format | Article |
| id | doaj.art-07340f718cac4f0bba690fc9f5097f39 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-04-12T19:22:18Z |
| publishDate | 2016-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-07340f718cac4f0bba690fc9f5097f392022-12-22T03:19:34ZengElsevierPhysics Letters B0370-26931873-24452016-07-01758C10110510.1016/j.physletb.2016.05.007Lepton flavor violation with light vector bosonsJulian HeeckNew sub-GeV vector bosons with couplings to muons but not electrons have been discussed in order to explain the muon's magnetic moment, the gap of high-energy neutrinos in IceCube or the proton radius puzzle. If such a light Z′ not only violates lepton universality but also lepton flavor, as expected for example from the recent hint for h→μτ at CMS, the two-body decay mode τ→μZ′ opens up and for MZ′<2mμ gives better constraints than τ→3μ already with 20-year-old ARGUS limits. We discuss the general prospects and motivation of light vector bosons with lepton-flavor-violating couplings.http://www.sciencedirect.com/science/article/pii/S037026931630154X |
| spellingShingle | Julian Heeck Lepton flavor violation with light vector bosons Physics Letters B |
| title | Lepton flavor violation with light vector bosons |
| title_full | Lepton flavor violation with light vector bosons |
| title_fullStr | Lepton flavor violation with light vector bosons |
| title_full_unstemmed | Lepton flavor violation with light vector bosons |
| title_short | Lepton flavor violation with light vector bosons |
| title_sort | lepton flavor violation with light vector bosons |
| url | http://www.sciencedirect.com/science/article/pii/S037026931630154X |
| work_keys_str_mv | AT julianheeck leptonflavorviolationwithlightvectorbosons |