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lat_evt_timestamp

timestamp of the event, caculated using GEM counters (sec)

lat_evt_delta_time

time difference between two consecutive events, calculated unsig GEM counters (sec)

lat_ancillary_delta_time

time difference between two consecutive events, calculated using AD counters (sec)

lat_timestamps_difference

lat_evt_delta_time - lat_ancillary_delta_time (sec)

gem_trigger_condition

GEM condition summary word remapped to the following values: ext=0, tkr=1, cal_le=2, cal_he=3, ext+tkr=4, ext+cal_le=5, ext+tkr+cal_le=6.

gem_tkr_trigger_timing

Arrival time of tkr trigger condition within the trigger window (clk ticks)

gem_cal_le_trigger_timing

Arrival time of cal_le trigger condition within the trigger window (clk ticks)

gem_cal_he_trigger_timing

Arrival time of cal_he trigger condition within the trigger window (clk ticks)

gem_ext_trigger_timing

Arrival time of ext trigger condition within the trigger window (clk ticks)

lat_evt_energy

Total raw energy in the calorimeters (MeV)

lat_evt_theta_xz

reconstructed event angle in the XZ plane (deg)

lat_evt_theta_yz

reconstructed event angle in the YZ plane (deg)

lat_evt_impact_point_tkr_x

reconstructed event impact point on top tracker layer, x coordinate (mm)

lat_evt_impact_point_tkr_y

reconstructed event impact point on top tracker layer, y coordinate (mm)

lat_evt_impact_point_cal_x

reconstructed event impact point on top of the cal, x coordinate (mm)

lat_evt_impact_point_cal_y

reconstructed event impact point on top of the cal, y coordinate (mm)    

lat_evt_top_tkr_x_hi 

hit position on top tracker layer x

lat_evt_top_tkr_y_hit

hit position on top tracker layer x

lat_evt_tkr_top_num_hits

number of hits summed over the top tracker layers

temX-tkr_strip_count

Number of strips per event in the tracker of tower X

temX-cal_log_count

Number of logs per event in the calorimeter of tower X

temX-cal_energy

Total raw energy in the calorimeter of tower X (MeV)

acd-tileXX_pulse_height

Pulse height in the ACD tile XX (adc counts)

acd-tileXX_veto_pulse_heigh

Pulse height in the ACD tile XX , when the veto signal is ON (adc counts)

tagger_tag_momentum

Particle momentum as measured by the tagger (GeV)

lat_tag_gamma_energy

Photon evergy, defined as BEAM_ENERGY - tagger_tag_momentum (MeV)

tagger_total_beam_energ

Total beam energy: tagger_tag_momentum + lat_evt_energy (MeV)

tagger_tag_cu_momentum

Particle momentum measured using the tagger module 0-1 and the CU

tagger_beam_angle_x

Beam angle, measured using tagger module 0-1, in the XZ plane (rad)

tagger_beam_angle_y

Beam angle, measured using tagger module 0-1, in the YZ plane (rad)

tagger_cu_projected_beam_x

Beam impact point on CU top tracker layer, measured using tagger module 0-1, x coordinate (mm)

tagger_cu_projected_beam_y

Beam impact point on CU top tracker layer, measured using tagger module 0-1, y coordinate (mm)

tagger_cu_projected_beam_residual_x

Difference between lat_evt_impact_point_tkr_x (traslated in the absolute reference frame) and tagger_cu_projected_beam_x (mm) 

tagger_cu_projected_beam_residual_y

Difference between lat_evt_impact_point_tkr_y (traslated in the absolute reference frame) and tagger_cu_projected_beam_y (mm)

tagger-modX_Number_of_Clusters_X

Number of cluster on the x Layer of Tagger Module X

tagger-modX_Number_of_Clusters_Y

Number of cluster on the y Layer of Tagger Module X

tagger-modX_Impact_Point_X

Beam impact point on the x Layer of Tagger Module X (defined as the position of the cluster with max pulse height)

tagger-modX_Impact_Point_Y

Beam impact point on the y Layer of Tagger Module X (defined as the position of the cluster with max pulse height)

tagger-modX_n_hits

 Number of readout strips of Tagger Module X

 tagger_X_int

 tagger_residual_x2

 tagger_residual_x3