Rather than using a broom or other object that might be frighteningly aggressive, I suggest treating her the way I treat my cockerels. That is, walk through her. Not in a challenging way, but simply as a force of nature -- the way a cow or a horse would walk where it intends to walk and not divert for a little ball of feathers.
You should see me doing my chicken chores. I'm wading through the flock saying "Pardon me. Excuse me. Pardon me. Excuse me," like a line from an old comedy movie as I go from point A to point B without ever diverting to walk around a chicken.
Now and then I have to push one with my boot, but I never act as if I'm challenging them.
When I have cockerels I often unnecessarily rearrange coop and run furniture so that I have an excuse to do this that isn't directly challenging them. For example, I pick up a bucket, carry it in a straight line through the place that the cockerel is standing, then set it down. Pick up a lawn chair, carry it in a straight line through the place that the other cockerel is standing, and put it down. And so on.
But never as a direct challenge, always just doing what I'm doing and going through that space because I'm The Giant Who Brings Food and not part of the flock at all.
I have lost count of the times I've stepped on the Cochin's foot feathers because she's right there hoping I'll drop something she can grab before the others get to it.