Hi, this is probably very simple.(adsbygoogle = window.adsbygoogle || []).push({});

1) What is the product of two singlets?

2) What is the product of two singlets and a doublet?

It looks like (2) breaks SU(2) symmetry and (1) doesn't, but I don't really understand why =/.

Any help would be appreciated,

Thanks!

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

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!

# Singlets and Doublets in SU(2)

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