Beamspot Resources

Position resolution in X using MC truth information in simulated minimum bias events filtered to pass a L1 trigger

Position resolution in Y using MC truth information in simulated minimum bias events filtered to pass a L1 trigger

Position resolution in Z using MC truth information in simulated minimum bias events filtered to pass a L1 trigger

X position with respect to the nominal beam position taken from beamspot conditions database in simulated minimum bias events filtered to pass a L1 trigger

Y position with respect to the nominal beam position taken from beamspot conditions database in simulated minimum bias events filtered to pass a L1 trigger

3D surface plot of the measured beam profile in simulated minimum bias events filtered to pass a L1 trigger

2D surface plot of the measured beam profile in simulated minimum bias events filtered to pass a L1 trigger

OHP display of all online beamspot histograms present in the Gatherer for simulated minimum bias events filtered to pass a L1 trigger

OHP display of the track impact parameter distribution vs. azimuthal angle for simulated minimum bias events filtered to pass a L1 trigger

OHP display of a few histograms describing the beam profile in the transverse plane for simulated minimum bias events filtered to pass a L1 trigger

OHP display of a few more histograms describing the beam profile in the transverse plane for simulated minimum bias events filtered to pass a L1 trigger

DQMD display taken directly from the ACR during a test of the DQMF operation for the beamspot algorithms. This shows the X distribution with respect to the nominal position

DQMD display taken directly from the ACR during a test of the DQMF operation for the beamspot algorithms. This shows the X profile of the beam along with fit parameters from the DQM algorithm

ATLAS beam conditions (hit rates) panel on which we expect to eventually see additional information coming from the online beamspot algorithm.
ATLAS DCS Page