Well, I'm new too and my notions aren't from experience ... just what I've been reading here.
Here are some ideas - shake them off the branches and into the hive at twilight. Then hide the branches where they can't get to them or smell them. Make sure that you have 1:1 sugar syrup available to them w/ some kind of feeding mechanism (see the section on spring feedin on this forum) and you might consider putting a goodly wad of green grass in their entrance so that they can breath and ventilate but go out too easily - as it dries in 3 days or so then they will be more at home and likely won't leave. And, don't check in on them until about 3-4 days. If you disturb a swarm they will not like it.
OK, you folks who've been at this - add your 2 cents.
I smile like this because I have no idea what I\'m doing :-)