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

Timestamp:

Sep 9, 2019, 1:52:44 PM (5 years ago)

Author:

Michele Selvaggi

Comment:

--

WorkBook/Tutorials/Student

@@ -78 +78 @@
 This will create a file called {{{hist_data.root}}} that can be browsed as done earlier with {{{data.root}}}. 
 
-== 2) Characterisation of a BSM excess
-
-- The provided data corresponds to LHC events that contains at least two isolated leptons (lepton=electron/muon) with pT > 15. Prove it!
-
-- 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. 
-
-- What is the new particle's mass? 
-
-- What does it decay into? 
-
-- 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. 
-
-- How would you measure the background yield from this data sample? 
 
 
 
+