Difference between revisions of "Master student Projects"

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! style="background:#3399ff;" | <font color=#ffffff> 3) Measurement of BR(B0 -> pi Ds-) </font>  
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! style="background:#3399ff;" | <font color=#ffffff> 3) Measurement of relative ratio of B+->D0D+ and B+-D0Ds decays </font>  
 
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''' Supervisors:''' Niels Tuning (staff), Lennaert Bel (PhD) , Mick Mulder (PhD)  
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''' Supervisors:''' Sevda Esen (postdoc), Niels Tuning (staf), Michele Veronesi (PhD)  
  
 
''' Research description: '''
 
''' Research description: '''
  
This project aims to measure the branching fraction of the decay B0->pi Ds+.
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This decay is closely related to B0->Ds- Ds+ (see above), and close collaboration between the two master projects is foreseen.
This decay is closely related to Lb->p Ds+ (see above), and close collaboration between the two master projects is foreseen.
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The decay mode B+->D0D+ is expected to be dominated by tree diagrams with some additional
This research was started by a previous master student.  
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contributions from penguin diagrams. Assuming SU(3) symmetry,
The new measurement will finish the work, and include the new data from 2015 and 2016.
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measurement of its branching fraction relative to Cabibbo-favored
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B+->D0D will enable better understanding of penguin contributions
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to the CP violating mixing phase.
  
 
''' Relevant information: '''
 
''' Relevant information: '''
  
[1] [http://www.nikhef.nl/pub/experiments/bfys/lhcb/Theses/master/2015_MickMulder.pdf Master Thesis], Mick Mulder, 2015.
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[1] L.Bel, K.de Bruyn, R. Fleischer, M.Mulder, N.Tuning,
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"Anatomy of B -> DD Decays"
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https://arxiv.org/pdf/1505.01361.pdf
  
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[2] R.Aaij et al. [LHCb Collaboration],
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"First observations of B0s -> D+D, Ds+D and D0D0 decays"
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https://arxiv.org/pdf/1302.5854.pdf
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[3] PDG: http://pdglive.lbl.gov/BranchingRatio.action?desig=261&parCode=S041
  
  

Revision as of 15:41, 11 April 2018