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RE: Particle physics @ Utopian - Implementing an LHC analysis on a computer: the physics objects
You mean implementing the (e,μ) and (j,l) checks only, right?
Argh! A typo in my post. I meant second column. Sorry about that. One needs to implement the e/j and j/l removals.
Finally what does the "/GeV" mean in Plt/GeV?
Does this mean the transversal momentum of the lepton expressed in GeV?
In particle physics, we use a very handy system of units in which the speed of light equals 1 and the Planck constant equals 1. This implies that everything can be expressed in GeV (energy, momentum, mass, etc...) or 1/GeV (length, time, etc...) or actually some powers of GeV.
Ah cool, that makes sense now.
OK, but I'm still unsure how this affects the calculation in column 4.
I understand the Plt part but I'm not sure if the /GeV has any bearing.
Units are usually not explicitly indicated in formulas, right?
Or am I wrong and there is some kind of division to apply to Plt?
Thanks!
This is actually a way to write the equation consistently from the dimension standpoint. The transverse momentum pT has to be given in GeV, so that pT/GeV is dimensionless. Note that MadAnalysis assumes every single pT is given in GeV, so that you can in fact ignore the "/GeV" part.
Perfect. Thanks.
Most welcome sir...
Thanks sir
Most welcome sir
Thanks