We call them red paprika in Croatia, but here in Australia paprika is the dried ground red paprika (herbs).
I think that I read in some recipes on the internet red peppers for this vegetable.
Look at my ingredients, in the photo there is one fresh red capsicum.
With your description, I see it now. A red bell pepper. I had that and a green bell pepper in the chicken mixture for supper today.
It is also delicious. Next time I'll cook them with chicken.