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(Re)interpreting the results of new physics searches at the LHC

14–16 May 2018
CERN
Europe/Zurich timezone

Session

Joint session with Long-Lived Particles Workshop

16 May 2018, 09:00
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
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Description

LLP workshop timetable at https://indico.cern.ch/event/714087/timetable/

Presentation materials

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  1. 38. Whitepaper recommendations: re-interpretation and presentation of results
    Nishita Desai (LUPM, Montpellier)
    16/05/2018, 11:30
  2. 19. Long-lived particles with Delphes and MadAnalysis 5
    Eric Conte (Universite de Haute Alsace (FR))
    16/05/2018, 12:00
    Methods & tools

    The Delphes package offers a generic simulation of a detector in high energy physics. The simulation process consists in a mixture between parametric and algorithmic simulations and provides a good comprise between the transfer function method and a full detector simulation. In this talk, we will show the last Delphes performance results and explain step-by-step how LLPs are processed in the...

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  3. 17. Recasting LLP searches with GAMBIT
    Anders Kvellestad (Nordita)
    16/05/2018, 12:20
    Methods & tools

    Work is currently ongoing to expand the ColliderBit module in GAMBIT to allow recasting of LHC searches for long-lived particles. We are aiming to implement both quick recasts, using maps of acceptance times efficiency as functions of the LLP mass and lifetime, and more detailed simulations. I will report on our progress so far, both on the implementation of required physics calculations in...

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  4. 39. LLPs in Checkmate
    Jong Soo Kim
    16/05/2018, 12:30
  5. 40. CMS material for re-interpretation
    Juliette Alimena (Ohio State University (US))
    16/05/2018, 14:00
  6. 41. ATLAS material for re-interpretation
    Hideyuki Oide (INFN-Genova)
    16/05/2018, 14:30
  7. 42. Discussion
    16/05/2018, 14:50
  8. 44. Dark photon interpretation of LHCb search
    Wei Xue (CERN)
    16/05/2018, 16:00
  9. 46. Reinterpretation of long-lived particles searches within SModelS
    Jan Heisig (RWTH Aachen University)
    16/05/2018, 16:20

    SModelS provides an efficient framework to reinterpret new physics searches at the LHC in arbitrary theories with Z_2-odd BSM sectors by a decomposition into simpified model topologies. We show how the signatures of heavy stable charged particles and R-hadrons are embedded in this framework. We discuss recasting of this exotic search and the generation of the simplified model database....

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  10. 45. Freeze-in and LLPs
    Mr Bryan Zaldivar (LAPTh, Annecy)
    16/05/2018, 16:40

    Long-lived particles appearing in models in which dark matter is produced via the freeze-in mechanism can be probed at the LHC. This is illustrated for the case of a long-lived charged fermion which decays into dark matter and a lepton (electron or muon), using a search for heavy stable charged particles and a displaced lepton search by the CMS collaboration.

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  11. 37. Recasting the scotogenic FIMP
    Stefan Vogl (Max Planck Institute for Nuclear Physics)
    16/05/2018, 17:00
    Reinterpretation and LLP workshops joint session

    Taking the scotogenic FIMP model as an example I discuss LHC signatures which arise in models with dark matter freeze-in. The small couplings required to reproduce the observed dark matter abundance translate into decay-lengths for the next-to-lightest dark sector particle which can be macroscopic, potentially leading to spectacular signatures at the LHC. I present the leading experimental...

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  12. 47. Novel signatures for long-lived particles at the LHC
    Ms Swagata Mukherjee (Rheinisch Westfaelische Tech. Hoch. (DE))
    16/05/2018, 17:20
  13. 51. Long-lived neutrinos in the left-right symmetric model
    Goran Popara
    16/05/2018, 17:40
  14. 48. Discussion
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