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njacazio merged 2 commits into from
Mar 12, 2026
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[ALICE 3] Update TRK README #15151

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Update TRK README
scannito Mar 12, 2026
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Update TRK README 2
scannito Mar 12, 2026
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5 changes: 2 additions & 3 deletions Detectors/Upgrades/ALICE3/TRK/README.md
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Expand Up @@ -15,14 +15,13 @@ Configurables for various sub-detectors are presented in the following Table:
| Subsystem | Available options | Comments |
| ------------------ | ------------------------------------------------------- | ---------------------------------------------------------------- |
| `TRKBase.layoutVD` | `kIRIS4` (default), `kIRISFullCyl`, `kIRIS5`, `kIRIS4a` | [link to definitions](./base/include/TRKBase/TRKBaseParam.h) |
| `TRKBase.layoutML` | `kCylinder`, `kTurboStaves` (default), `kStaggered` | |
| `TRKBase.layoutOT` | `kCylinder`, `kTurboStaves`, `kStaggered` (default) | |
| `TRKBase.layoutMLOT` | `kCylindrical`, `kSegmented` (default) | `kSegmented` produced a Turbo layout for ML and a Staggered layout for OT |
| `TRKBase.layoutSRV` | `kPeacockv1` (default), `kLOISymm` | `kLOISymm` produces radially symmetric service volumes, as used in the LoI |

For example, a geometry with fully cylindrical tracker barrel (for all layers in VD, ML and OT) can be obtained by
```bash
o2-sim-serial-run5 -n 1 -g pythia8hi -m A3IP TRK FT3 TF3 \
--configKeyValues "TRKBase.layoutVD=kIRISFullCyl;TRKBase.layoutML=kCylinder;TRKBase.layoutOL=kCylinder"
--configKeyValues "TRKBase.layoutVD=kIRISFullCyl;TRKBase.layoutMLOT=kCylindrical"
```

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