Hey folks,(adsbygoogle = window.adsbygoogle || []).push({});

I'm writing a pop-sci article for a journal and one of the referees wants me to give the cosmological const in mks units instead of GeV. I just wanted to check with anyone in the know if the following looks correct.

First, the accepted value of lambda (order of mag):

[tex]\Lambda=10^{-47}(GeV)^4[/tex]

I want to convert this to [itex]J/m^3[/itex]

The following website http://hep.uchicago.edu/~dkrop/Natural_Units_Conversions.html [Broken] gives the conversion from meters to GeV

[tex]1m=5.07\times 10^{15}GeV[/tex]

so I can convert lambda to GeV/m^3

[tex]\Lambda=\frac{10^{-47}GeV^4}{(5\times 10^{-15}GeV)^3}=8\times 10^{-2}GeV/m^3[/tex]

Finally the website gives conversion from GeV to Joules

[tex] 1 J=7 \times 10^{9}GeV[/tex]

So,

[tex]\Lambda=\frac{8\times 10^{-2}GeV/m^3}{1 \times 10^{9}GeV}\approx 10^{-10} J/m^3[/tex]

Has anyone performed this conversion before?

Does this figure of [itex]\Lambda[/itex] look correct???

Thanks in advance!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Cosmological Constant in mks units

**Physics Forums | Science Articles, Homework Help, Discussion**