could you post the transform publisher you’re using to translate between base_link and laser? It looks like yours is turned by 90 degrees.
it should look something like this:
rosrun tf static_transform_publisher 0 0 0.1 3.14 0 0 base_link laser 100
or this
node if="$(arg use_rosbot)" pkg=“tf” type=“static_transform_publisher” name=“laser_broadcaster” args=“0 0 0 3.14 0 0 base_link laser 100” / with pointy brackets around it
depending on if you run it separately or in a launch file