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[Rivet] Fwd: FourMomentum massHendrik Hoeth hendrik.hoeth at cern.chThu Nov 11 00:32:39 GMT 2010
Thus spake Sercan Sen (Sercan.Sen at cern.ch): > And, please can somebody explain why we have those values (NaN) ? Photons tend to have a fairly low rest mass, both in nature and in Monte Carlo. Combine this with the fact that computer have a limited numerical accuracy, and you get sqrt(small_negative_number_instead_of_zero). At least from time to time. Guess we should catch that. In fact I thought we had already fixed this several months ago. Cheers, Hendrik -- One doesn't discover new lands without consenting to lose sight of the shore for a very long time. -- André Gide
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