UK taxes on US pension income

Hi,

I am a US citizen living as a tax resident in UK. I have read Articles 17 and 19 of the tax treaty and find it confusing.

I receive a US Social Security benefit monthly payment.

I receive an Oregon PERS pension monthly payment.

Am I correct in assuming that the PERS payment is only taxed in US and that the SSA benefit is only taxed in UK?

Thanks for your clarification.

DPA.