[Rivet] Rivet 2.1.2: LorentzTransform with 0 Boost should do nothing

[Andy Buckley]

Hi Michael,

Fantastic -- thanks very much. I'll merge and test these asap, and we
should soon have a new release out with this included. Good timing!

Andy


On 29/08/14 16:59, Michael Große wrote:
> Hi,
> 
> I'm using Rivet 2.1.2 and I noticed incorrect behavior of the class
> LorentzTransform, if it is created with a (0,0,0) boost-vector. In
> this case the resulting boost-matrix should be the unity-matrix, since
> we are already in the restframe and no boosting should be happening.
> 
> My current workaround is to add an if-condition to the constructor
> LorentzTransform& setBoost(const Vector3& boost) in LorentzTrans.hh,
> but I'm not sure if this is the proper place to fix this, since I
> suspect that the error is somewhere in the calculation of the angle
> between a vector and a vector with length 0.
> I have also added another unittest to testMatVec.cc to check for this.
> 
> I have attached both my files to this email.
> 
> Cheers,
> 
> Michael
> 
> 
> 
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-- 
Dr Andy Buckley, Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow / PH Dept, CERN