mostly plus

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Metric tensor

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mostly plus (not comparable)

1. (physics) in general relativity, describing the convention in which the metric tensor has a signature of (-,+,+,+).

   Antonym: mostly minus

   • 2018, Essig Rouven, Low Ian, Anticipating the Next Discoveries in Particle Physics: TASI 2016Proceedings of 2016 Theoretical Advanced Study Institute in Elementary Particle Physics, World Scientific, →ISBN, page 356:

     ... two possible choices for the spacetime metric (either the mostly minus metric used in these lectures or the mostly plus metric), ...

   • 2014, Kurt Sundermeyer, Symmetries in Fundamental Physics, Springer, →ISBN, page 77:

     I allow myself to be inconsistent in using the “mostly plus” metric in some contexts, but tried to emphasize this deviation properly.

   • 2006, Dmitri Kazakov, G. Smadja, Particle Physics and Cosmology: The Interface: Proceedings of the NATO Advanced Study Institute on Particle Physics and Cosmology: The Interface Cargèse, France, 4-16 August 2003, Springer Science & Business Media, →ISBN, page 465:

     We use the mostly plus convention wherein at any space time point a locally inertial frame can be found in which ${\displaystyle g_{MN}=\eta _{MN}\equiv (-1,+1,\dots ,+1)}$.

   • 2000, The Journal of High Energy Physics: JHEP.. Paper archive:

     We use a “mostly plus” metric and the conventions that indices m, n = 0 , 1 , 2 , . . . , 9 run over all of ten - dimensional space - time, M , v = 0 , 1 , 2 , 3 run over the 3 - brane world volume  ...