The major problems were examined and hopefully put right:

• Split tracks
• Lost points
• Sensitive volumes
  • High and low y values
  • Padrow shapes in vt
  • Padrow shapes in mt
  • Potential points
• 'Spirals'

The program reform and subprograms: structure.

The following plots are based on 17083 p+Pb central (CD>=7) events.

Split tracks

- p+Pb central

	Proposed cut distance for split tracks: 1.5cm

- Pb+Pb central

Lost points

- p+Pb central Proposed cut distance for lost points: 1cm
- Pb+Pb central

High and low y values



Padrow shapes in vt



Padrow shapes in mt

There are padrows with four different lengths: 67.58cm, 68.13cm, 68.57cm and 69.20cm.

Potential points

- new - old

'Spirals'

- p+Pb central Proposed cut for spirals on average residuals: 0.25cm
- Pb+Pb central