An explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomaly
A global fit to the recent B → K* μ + μ - data shows indications for a large new-physics contribution to the Wilson coefficient of the semi-leptonic vector operator. In this article we consider a simple Z′-boson model of 3-3-1 type that can accommodate such an effect without violating any other cons...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Published: |
Springer Berlin Heidelberg
2014
|
| _version_ | 1797091136775389184 |
|---|---|
| author | Gauld, R Goertz, F Haisch, U |
| author_facet | Gauld, R Goertz, F Haisch, U |
| author_sort | Gauld, R |
| collection | OXFORD |
| description | A global fit to the recent B → K* μ + μ - data shows indications for a large new-physics contribution to the Wilson coefficient of the semi-leptonic vector operator. In this article we consider a simple Z′-boson model of 3-3-1 type that can accommodate such an effect without violating any other constraint from quark-flavour physics. Implications for yet unobserved decay modes such as B → X s ν v and longstanding puzzles like B → πK are also discussed. The Z′-boson masses required to address the observed anomaly lie in the range of 7 TeV. Such heavy Z′ bosons evade the existing bounds from precision data and direct searches, and will remain difficult to discover even at a high-luminosity LHC. The potential of an ILC as well as the next generation of low-energy parity-violation experiments in constraining the Z′-boson parameter space is also examined. © 2014 The Author(s). |
| first_indexed | 2024-03-07T03:28:42Z |
| format | Journal article |
| id | oxford-uuid:b9f0c45b-7122-4578-9f90-e91f6eac6ee2 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:28:42Z |
| publishDate | 2014 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | oxford-uuid:b9f0c45b-7122-4578-9f90-e91f6eac6ee22022-03-27T05:06:29ZAn explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomalyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b9f0c45b-7122-4578-9f90-e91f6eac6ee2Symplectic Elements at OxfordSpringer Berlin Heidelberg2014Gauld, RGoertz, FHaisch, UA global fit to the recent B → K* μ + μ - data shows indications for a large new-physics contribution to the Wilson coefficient of the semi-leptonic vector operator. In this article we consider a simple Z′-boson model of 3-3-1 type that can accommodate such an effect without violating any other constraint from quark-flavour physics. Implications for yet unobserved decay modes such as B → X s ν v and longstanding puzzles like B → πK are also discussed. The Z′-boson masses required to address the observed anomaly lie in the range of 7 TeV. Such heavy Z′ bosons evade the existing bounds from precision data and direct searches, and will remain difficult to discover even at a high-luminosity LHC. The potential of an ILC as well as the next generation of low-energy parity-violation experiments in constraining the Z′-boson parameter space is also examined. © 2014 The Author(s). |
| spellingShingle | Gauld, R Goertz, F Haisch, U An explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomaly |
| title | An explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomaly |
| title_full | An explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomaly |
| title_fullStr | An explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomaly |
| title_full_unstemmed | An explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomaly |
| title_short | An explicit Z (')-boson explanation of the B -> K (au) mu (+) mu (-) anomaly |
| title_sort | explicit z boson explanation of the b gt k au mu mu anomaly |
| work_keys_str_mv | AT gauldr anexplicitzbosonexplanationofthebgtkaumumuanomaly AT goertzf anexplicitzbosonexplanationofthebgtkaumumuanomaly AT haischu anexplicitzbosonexplanationofthebgtkaumumuanomaly AT gauldr explicitzbosonexplanationofthebgtkaumumuanomaly AT goertzf explicitzbosonexplanationofthebgtkaumumuanomaly AT haischu explicitzbosonexplanationofthebgtkaumumuanomaly |