Time, be patient. Treat them as if they where a package. You should feed them (you nearly always feed swarms) then give them a week, maybe 2 with very minimal intervention. After that, do an inspection and look for signs of a queen. With a swarm, inspecting too soon could allow the queen to fly, not a good thing.
If, once you caught the swarm and hived it the bees found the hive and housed into it, you likely have the queen.
Note: May people immediately requeen a swarm; I don't but I wanted to throw that information out in case you wanted to consider it. The main reason that I don't is because a swarm, almost by definition has a queen that over wintered in your area and that can be gold. People who requeen often do so because they feel an older queen is more likely to swarm and/or that she swarmed once, maybe she is more prone to swarm again. You need to decide your path in this matter.
Good luck!
If, once you caught the swarm and hived it the bees found the hive and housed into it, you likely have the queen.
Note: May people immediately requeen a swarm; I don't but I wanted to throw that information out in case you wanted to consider it. The main reason that I don't is because a swarm, almost by definition has a queen that over wintered in your area and that can be gold. People who requeen often do so because they feel an older queen is more likely to swarm and/or that she swarmed once, maybe she is more prone to swarm again. You need to decide your path in this matter.
Good luck!