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Analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detector
In this thesis the angular analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi\Lambda$ decays is presented, using data from $pp$ collisions recorded by the LHCb experiment between 2011 and 2016, corresponding to an integrated luminosity of approximately 5 fb$^{-1...
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Lenguaje: | eng |
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2020
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Acceso en línea: | http://cds.cern.ch/record/2717628 |
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author | Chatzikonstantinidis, Georgios |
author_facet | Chatzikonstantinidis, Georgios |
author_sort | Chatzikonstantinidis, Georgios |
collection | CERN |
description | In this thesis the angular analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi\Lambda$ decays is presented, using data from $pp$ collisions recorded by the LHCb experiment between 2011 and 2016, corresponding to an integrated luminosity of approximately 5 fb$^{-1}$. For the $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ decay, the angular observables are extracted at low hadronic-recoil using the method of moments. This is the first time that the complete set of the angular observables has been measured; the results are published in Ref. [1]. A measurement of the angular observables of the $\Lambda^0_b\rightarrow J/\psi\Lambda$ decays is also performed. The angular observables are extracted using a moment analysis; an interpretation of the results in terms of the production polarisation of $\Lambda^0_b$ and the decay amplitudes is also performed. This is the first time that the complete set of the angular observables of the $\Lambda^0_b\rightarrow J/\psi\Lambda$ has been measured; the results are preliminary and correspond to the current status of the analysis. |
id | cern-2717628 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
record_format | invenio |
spelling | cern-27176282020-07-21T12:48:59Zhttp://cds.cern.ch/record/2717628engChatzikonstantinidis, GeorgiosAnalysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detectorParticle Physics - ExperimentIn this thesis the angular analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi\Lambda$ decays is presented, using data from $pp$ collisions recorded by the LHCb experiment between 2011 and 2016, corresponding to an integrated luminosity of approximately 5 fb$^{-1}$. For the $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ decay, the angular observables are extracted at low hadronic-recoil using the method of moments. This is the first time that the complete set of the angular observables has been measured; the results are published in Ref. [1]. A measurement of the angular observables of the $\Lambda^0_b\rightarrow J/\psi\Lambda$ decays is also performed. The angular observables are extracted using a moment analysis; an interpretation of the results in terms of the production polarisation of $\Lambda^0_b$ and the decay amplitudes is also performed. This is the first time that the complete set of the angular observables of the $\Lambda^0_b\rightarrow J/\psi\Lambda$ has been measured; the results are preliminary and correspond to the current status of the analysis.CERN-THESIS-2019-339oai:cds.cern.ch:27176282020-05-08T14:57:06Z |
spellingShingle | Particle Physics - Experiment Chatzikonstantinidis, Georgios Analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detector |
title | Analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detector |
title_full | Analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detector |
title_fullStr | Analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detector |
title_full_unstemmed | Analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detector |
title_short | Analysis of $\Lambda^0_b\rightarrow\Lambda\mu^+\mu^-$ and $\Lambda^0_b\rightarrow J/\psi \Lambda$ decays with the LHCb detector |
title_sort | analysis of $\lambda^0_b\rightarrow\lambda\mu^+\mu^-$ and $\lambda^0_b\rightarrow j/\psi \lambda$ decays with the lhcb detector |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2717628 |
work_keys_str_mv | AT chatzikonstantinidisgeorgios analysisoflambda0brightarrowlambdamumuandlambda0brightarrowjpsilambdadecayswiththelhcbdetector |