Fork me on GitHub

Changes between Version 13 and Version 14 of WorkBook/Tutorials/Student


Ignore:
Timestamp:
09/09/19 13:52:44 (13 months ago)
Author:
mselvaggi
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • WorkBook/Tutorials/Student

    v13 v14  
    7878This will create a file called {{{hist_data.root}}} that can be browsed as done earlier with {{{data.root}}}.
    7979
    80 == 2) Characterisation of a BSM excess
    81 
    82 - The provided data corresponds to LHC events that contains at least two isolated leptons (lepton=electron/muon) with pT > 15. Prove it!
    83 
    84 - The data contains the equivalent of an integrated luminosity of 60 pb-1. I presents an excess corresponding to a new physical state. Find the observable that makes this excess explicit.
    85 
    86 - What is the new particle's mass?
    87 
    88 - What does it decay into?
    89 
    90 - For each decay channel, express the cross section times branching ratio as a function of the number of observed events (Nobs) the number of background events (Nb), the integrated luminosity (L) and the event selection efficiency.
    91 
    92 - How would you measure the background yield from this data sample?
    9380
    9481
    9582
     83