[Rivet] rev. 890 broke CDF_2008_DRELLYAN

[Hendrik Hoeth]

Hi,

Thus spake Andy Buckley (andy.buckley at durham.ac.uk):

> Which functions are being used?

Adding more and more debugging output I found this:

Rivet.Analysis.CDF_2008_DRELLYAN: DEBUG  (104.531; -26.4864, 31.6441, 45.92)
Rivet.Analysis.CDF_2008_DRELLYAN: DEBUG  dilepton mass = 84.352
Rivet.Analysis.CDF_2008_DRELLYAN: DEBUG  dilepton pT   = 1702.88

Indeed pT() in Vector4.hh returned pT2 instead of pT.

This is now fixed in r918. I guess virtually every analysis was affected
by this. So I wonder whether we should write a test suite for all this
little things. Probably a matter of man-power -- some student?

   Hendrik

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