2016-11-22-straight-tracks-paper » History » Revision 6
Tuesday 22nd November at 15:00 and continued on Wednesday 23rd November at 14:00.
Page 1¶First three comments may be more appropriate for the paper rather than the MICE note
- Should defend choice of Xenon
- Should define symbols in emittance formula
- Should define equilibrium emittance
- "Thus, despite the limited angular range it is extremely attractive as a direct measure of the
scattering of muons" Need to add some more quantitative discussion of angular acceptance.
- Table 1: Row for Al numbers are suspect - correct
- Table 1: General comment that some description of the material budget is required; how much material and where?
- Table 1: In similar vein, some description of absorber is necessary
- Scattering angle definitions eqn (3) and (4) are not correct - see supplementary note from JHC Projected-angles.pdf
theta = \sqrt(<theta_scatt>)should be
theta = \sqrt(<theta^2>)
- There was some discussion over the use of a Gaussian fit, as mentioned in final sentence of 1.1. Comment that the description would be better in the "analysis" section where the relevant measurements and plots are listed.
- 0.0038 should be 0.038
- Comment that section 1.2 needs a lot of work; it was not reviewed in detail.
- "deviation between data and simulation": some discussion over this comment. Which direction is "South"? Why does beam offset introduce bias?
- Beam offset causes clipping, which is a bias
- the 4 cm shift is in MC
- It is a bias in the simulated measurement, not in the data itself
Page 4 (Fig. 1)¶
- Be explicit that this is MC through a "bare absorber"
- Why is the Geant4 MC of Xenon so weird - e.g. asymmetric?
- Ryan is not sure and will (continue to) dig
- Why is the Cobb-Carlisle MC of Xenon so weird (e.g. thick)?
- JHC will dig
- Some discussion of the cuts and rate accounting
- Timing selection is a very small time bin, e.g. 200 ps over the few ns width of the muon peak
- Fiducial selection is a 300 mm diameter tracker over a 5 m drift length
- Need to add some description of the basic geometry