Opened 13 years ago
Closed 8 years ago
#420 closed task (fixed)
Complex mass scheme in OVM
| Reported by: | Juergen Reuter | Owned by: | bcho |
|---|---|---|---|
| Priority: | P1 | Milestone: | v2.3.1 |
| Component: | omega | Version: | 2.0.5 |
| Severity: | major | Keywords: | O'Mega amplitudes |
| Cc: | cweiss |
Description
This feature has long been announced, we should discuss whether this is a real plan or only a straw man.
Change History (13)
comment:1 Changed 9 years ago by
| Cc: | cweiss added |
|---|---|
| Priority: | P3 → P1 |
comment:2 Changed 9 years ago by
| Milestone: | v3.0 → v2.2.6 |
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comment:3 Changed 9 years ago by
| Milestone: | v2.2.6 → v2.2.7 |
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comment:4 Changed 9 years ago by
| Milestone: | v2.2.7 → v2.2.8 |
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comment:5 Changed 9 years ago by
| Component: | omega → core |
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| Owner: | changed from ALL to Juergen Reuter |
| Priority: | P1 → P0 |
| Severity: | minor → major |
| Status: | new → assigned |
This is not really a task within O'Mega but for the import_from_whizard routines and hence the WHIZARD-O'Mega interface.
comment:6 Changed 9 years ago by
| Milestone: | v2.2.8 → v2.3.0 |
|---|---|
| Priority: | P0 → P2 |
comment:7 Changed 8 years ago by
| Owner: | changed from Juergen Reuter to kilian |
|---|---|
| Priority: | P2 → P1 |
| Status: | assigned → new |
Initial task should be a conditional clause (scheme dependence) in model files and according improvements for the import_from_whizard machinery.
comment:8 Changed 8 years ago by
| Status: | new → assigned |
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comment:9 Changed 8 years ago by
| Component: | core → omega |
|---|---|
| Owner: | changed from kilian to ohl, jr_reuter |
| Status: | assigned → new |
For the WHIZARD aspects of this, see #782.
Within O'Mega, there has to be support for correct propagators (fermion and vector) that take the imaginary part consistently into account.
comment:10 Changed 8 years ago by
I changed the fermion and (massive) vector propagators in O'Mega accordingly. BACN has to do the corresponding modifications for the OVM, and what is still missing is a steering from WHIZARD.
comment:11 Changed 8 years ago by
| Owner: | changed from ohl, jr_reuter to Juergen Reuter |
|---|---|
| Status: | new → assigned |
comment:12 Changed 8 years ago by
| Milestone: | v2.3.0 → v2.3.1 |
|---|---|
| Owner: | changed from Juergen Reuter to bcho |
| Status: | assigned → new |
| Summary: | Complex mass scheme in O'Mega → Complex mass scheme in OVM |
Only the OVM have to be done.
comment:13 Changed 8 years ago by
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
OVM support done by BACN in r7665.
If we want a proper NLO treatment of processes involving unstable particles, especially e.g. top-decay, we will not be able to ignore this feature any longer.