Difference between revisions of "Master student Projects"
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Also for this project, computer skills and affinity with programming are required. You become a member of a small, international team with regular meetings. | Also for this project, computer skills and affinity with programming are required. You become a member of a small, international team with regular meetings. | ||
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| + | {| border="1" cellpadding="2" cellspacing="0" | ||
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| + | ! style="background:#3399ff;" | <font color=#ffffff> 3) Search for lepton flavor violation in Z decays with Run 2 data </font> | ||
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| + | ''' Supervisors:''' Olya Igonkina (staf) and Hartger Weits (PhD student) | ||
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| + | ''' Research description: ''' | ||
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| + | The lepton flavor violation is a mechanism which is forbidden by Standard Model and is not observed so far in experiment. However, it could explain a large amount of matter (and lack of antimatter) found in the Universe. Such mechanism could manifest itself in decays of Z bosons to tau and another lepton. Unlike other lepton flavor violating decays this channel is easier to record and identify. At the same time, the background from Z -> tau+tau, mu+mu, e+e decays can mimic signal and reduction of background is a challenge. | ||
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| + | All steps of this measurement (analysis of ATLAS data, tuning cuts on MC, understanding the background and trigger performance) are part of the master project. The programing of the code, the data analysis with ROOT and ATLAS software will be everyday tasks. | ||
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| + | ''' Relevant papers:''' | ||
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| + | Review of various lepton flavor violating processes: [http://arxiv.org/pdf/arXiv:1201.5093 arXiv:1201.5093] | ||
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| + | Relation between leptogenesis and lepton flavor violation : [http://arxiv.org/pdf/arXiv:0904.1182 arXiv:0904.1182] | ||