Precision timing in high pile-up and time-based vertex reconstruction
- Creators
- Flamant, Cedric Wen
Abstract
For the High Luminosity upgrade of the Large Hadron Collider (HL-LHC), the Com- pact Muon Solenoid Experiment (CMS) is currently studying various upgrade options (CMS Phase II Upgrade). HL-LHC involves raising the rate of collisions (luminosity) by a factor of 10 beyond the LHC's original design value, posing the challenge of an in- creased rate of collisions per bunch-crossing (pile-up). In high pile-up conditions, it is difficult to assign final state particles to individual collisions, and complicated to separate jets. Studies have been conducted on the use of time of flight measurements in the elec- tromagnetic calorimeter (ECAL) of CMS in regards to time cleaning of pile-up jets and vertexing through triangulation of rechits. This project verifies a few applications of ECAL timing within the recently updated timing portion of the CMSSW framework.
Additional Information
CERN Document Server: Preprints (2014), 1-5. CERN-STUDENTS-Note-2014-073.Attached Files
Submitted - tVert_draft.pdf
Files
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Additional details
- Alternative title
- Pile-Up: multiple collisions happening in a single bunch crossing
- Alternative title
- Vertex Reconstruction: locating collision points
- Eprint ID
- 51147
- Resolver ID
- CaltechAUTHORS:20141102-102949284
- Created
-
2014-11-03Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Caltech groups
- CMS@Caltech
- Other Numbering System Name
- CERN-STUDENTS-Note
- Other Numbering System Identifier
- 2014-073