Opened 15 years ago
Closed 14 years ago
#229 closed defect (fixed)
Proper treatment of beam remnants and their pT spectra
| Reported by: | Juergen Reuter | Owned by: | kilian |
|---|---|---|---|
| Priority: | P3 | Milestone: | v2.0.4 |
| Component: | core | Version: | 2.0.0rc2 |
| Severity: | normal | Keywords: | beams |
| Cc: |
Description
There was a rudimentary support for this in WHIZARD 1, e.g. for ISR by Tim Barklow, but no general solution. This should be done in WHIZARD 2. Also, the counter (at least) for beam remnants has to switched on again.
Change History (3)
comment:1 Changed 14 years ago by
| Milestone: | v2.1 → v2.0.3 |
|---|---|
| Owner: | changed from ALL to kilian |
| Status: | new → assigned |
comment:2 Changed 14 years ago by
| Milestone: | v2.0.3 → v2.0.4 |
|---|
comment:3 Changed 14 years ago by
| Resolution: | → fixed |
|---|---|
| Status: | assigned → closed |
This feature is activated for ISR and EPA in r2815.
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The code has been there for a long time now, but never tested. Activating it for ISR, I discovered that the splitting formula (momentum transfer bound) fails in double precision due to me / sqrts being too small. It is necessary to use a Taylor expansion here. Otherwise, it should be ok.