This picture shows the luminosity at the CDF and D0 detectors for each bunch crossing as well as the intensities of the 36 proton and antiproton bunches.
Yahoo! We just succeeded putting in our first colliding beam store since the long shutdown ended! The initial luminosity was only ~20% of the norm before the shutdown, but the proton and antiproton intensities were intentionally low. All of the accelerators still need more tune-up work, but delivering the first collisions after a shutdown is a big stepping stone. The experiments need colliding beams to shake out their detectors, too.
While this first store spins, we can catch our breath, get a good night’s sleep (I hope), and prepare for the additional tune-up work.
We’re back!
