Focus on:  Hide Contributions
Back to Conference View
Login

Searches for long-lived particles at the LHC: Workshop of the LHC LLP Community

→ Europe/Zurich
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110
Show room on map
Albert De Roeck (CERN), Brian Shuve (SLAC National Accelerator Laboratory), James Beacham (Ohio State University (US)), Xabier Cid Vidal (Universidade de Santiago de Compostela)
Description

Following the success of the LHC Long-Lived Particle (LLP) Mini-Workshop in May of 2016, the LHC LLP Community -- composed of members of the CMS, LHCb, and ATLAS collaborations as well as theorists, phenomenologists and those interested in LLP searches with auxiliary LHC detectors -- convenes again to address the status and future of LLP searches at the LHC.

This workshop will be one of two workshops devoted to producing an LHC LLP white paper that will be a snapshot of the status of LLP searches at the LHC as of 2017, organized by experimental signature; contain an enumeration of gaps in the coverage of classes of BSM models that can produce LLPs; propose recommendations for triggering strategies for LLPs in ATLAS, CMS, and LHCb; list ideas for new searches for LLPs; and propose a set of recommendations for the presentation of search results to ensure future reinterpretation and recasting.

We will have three days of talks and breakout working sessions that will be geared toward solidifying the structure and components of the white paper, performing phenomenology-level studies for new or existing ideas for LLP searches, and identifying concrete tasks (other studies and writing sections) to be completed during the summer.  To that end, we have converged upon four working groups for the workshop:

WG 1: Simplified models / MC / RECASTing and reinterpretation for LLPs

  • How do we make sure the published searches are optimally useful in the future?  In addition to discussing simplified models for LLPs, this working group will include a hands-on, proof-of-concept recasting of some existing experimental searches that have been archived with the RECAST framework, for a few benchmark model scenarios.

WG 2: Backgrounds for LLP searches

  • What are the challenges of low- or non-standard background searches?  How these have been addressed in the past?  What are the limitations of the current approaches?  What new ideas for better estimates may exist?

WG 3: Triggering strategies and recommended studies for experiments for LLP searches

  • What are the most important, high priority LLP signatures for which triggering strategies don't exist or are known to be sub-optimal?  What recommendation can we as a community make to the experiments for studies that should be done over the summer in support of new triggers?  New, blue-sky ideas mandatory.

WG 4: Dark showers

  • As theorist and ad hoc coordinating committee member Jessie Shelton put it, "one of the major outstanding questions in designing a search program for displaced objects is how to design a simple and flexible basis of models for showering dark sectors."  How do we address this in a more detailed and comprehensive way, and what does this mean for the current searches in the experimental collaborations for this class of models?

For each of the first two days of the workshop, two working groups will proceed in parallel, to be followed by reports on the final day.

The second of the two workshops will take place in October of 2017 and will be centered on finalizing the white paper.

​And although in-person attendance is encouraged, active remote participation -- including for the afternoon breakout working sessions -- will be available via Vidyo.

For information relative to housing and laptop registration, please check
http://lpcc.web.cern.ch/LPCC/index.php?page=visit

Those without a CERN access card can request one in the registration form.

Participants
132 View full list
  • Monday 24 April
    • 09:00 → 12:45
      Talks and discussion: Day 1 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
      • 09:00
        Welcome: White paper overview and workshop goals 15m 4/3-006 - TH Conference Room

        4/3-006 - TH Conference Room

        CERN

        110
        Show room on map
        Speaker: James Beacham (Ohio State University (US))
        Beacham_LHC_LLP_Workshop_2017April24.pdf
      • 09:15
        Theory/pheno overview of LLP searches at the LHC 45m 4/3-006 - TH Conference Room

        4/3-006 - TH Conference Room

        CERN

        110
        Show room on map
        Speaker: Brian Shuve (SLAC National Accelerator Laboratory)
        LHC-LLP_Shuve.pdf
      • 10:00
        Experimental overview of LLP searches at the LHC 45m 4/3-006 - TH Conference Room

        4/3-006 - TH Conference Room

        CERN

        110
        Show room on map
        Speaker: Heather Russell (McGill University (CA))
        20170424_LLPs.pdf
      • 10:45
        Coffee 30m 61/1-201 - Pas perdus - Not a meeting room - (CERN)

        61/1-201 - Pas perdus - Not a meeting room -

        CERN

        10
        Show room on map
      • 11:15
        Backgrounds for LLP searches 30m 4/3-006 - TH Conference Room

        4/3-006 - TH Conference Room

        CERN

        110
        Show room on map
        Speaker: Jamie Antonelli (The Ohio State University (US))
        Antonelli_LLP_April25.pdf
      • 11:45
        Simplified models for LLPs 30m 4/3-006 - TH Conference Room

        4/3-006 - TH Conference Room

        CERN

        110
        Show room on map
        Speaker: Jared Evans
        LLP-SimpModels.pdf
      • 12:15
        RECAST for LLP searches 30m 4/3-006 - TH Conference Room

        4/3-006 - TH Conference Room

        CERN

        110
        Show room on map
        Speaker: Lukas Alexander Heinrich (New York University (US))
        RECAST_LLP 2.pdf
    • 12:45 → 14:00
      Lunch 1h 15m
    • 14:00 → 16:50
      Breakout working groups: Day 1
      • 14:00
        WG 1: Simplified models / MC / reinterpretation and RECAST-ing 2h 50m 304/1-001

        304/1-001

        CERN

        25
        Show room on map
        Speakers: Giovanna Francesca Cottin Buracchio (University of Cambridge (GB)), Jared Evans, Lukas Alexander Heinrich (New York University (US)), Oliver Buchmueller (Imperial College (GB))
        LLP-LHC-Workshop_WG1IntroSlides.pdf
      • 14:00
        WG 2: Backgrounds for LLP searches 2h 50m 40/R-C10

        40/R-C10

        CERN

        20
        Show room on map
        Speakers: Juliette Alimena (Ohio State University (US)), Martino Borsato (Universidade de Santiago de Compostela (ES)), Sascha Mehlhase (Ludwig-Maximilians-Univ. Muenchen (DE)), Zhen Liu (Fermilab)
        online document
    • 16:50 → 17:20
      Coffee 30m 61/1-201 - Pas perdus - Not a meeting room -

      61/1-201 - Pas perdus - Not a meeting room -

      CERN

      10
      Show room on map
    • 17:20 → 17:50
      Capstone talk: SHiP 30m 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
      Speaker: Philippe Mermod (Universite de Geneve (CH))
      Mermod_LHCLLP_Apr17.pdf
    • 17:50 → 18:20
      Capstone talk: MoEDaL and the beam pipe monopole initiative 30m 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
      Speaker: James Pinfold (University of Alberta (CA))
      CERN-Long-Lived-Workshop-MoEDAL-Talk-April-2017.pdf
    • 18:30 → 19:30
      Welcome drink 1h 61/1-201 - Pas perdus - Not a meeting room -

      61/1-201 - Pas perdus - Not a meeting room -

      CERN

      10
      Show room on map
  • Tuesday 25 April
    • 09:00 → 12:40
      Talks and discussion: Day 2 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
    • 12:40 → 14:00
      Lunch 1h 20m
    • 14:00 → 16:50
      Breakout working groups: Day 2
      • 14:00
        WG 3: Triggering strategies and recommended studies for experiments 2h 50m 104/R-A10

        104/R-A10

        CERN

        10
        Show room on map
        Speakers: Chris Hill (Ohio State University (US)), David Curtin (University of Maryland), Henry Lubatti (University of Washington (US)), Xabier Cid Vidal (Universidade de Santiago de Compostela)
        davidcurtin_LLP_trigger_discussion_startingpoint_25april2017.key.pdf
      • 14:00
        WG 4: Dark showers 2h 50m 14/4-030

        14/4-030

        CERN

        20
        Show room on map
        Speakers: Andrew Haas (New York University), Devin Walker, Jakub Scholtz (UW Seattle), James Beacham (Ohio State University (US)), Dr Julia Shelton, Pedro Klaus Schwaller (DESY)
        WG4.pdf
    • 16:50 → 17:20
      Coffee 30m 61/1-201 - Pas perdus - Not a meeting room -

      61/1-201 - Pas perdus - Not a meeting room -

      CERN

      10
      Show room on map
    • 17:20 → 17:50
      Capstone talk: MATHUSLA 30m 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
      Speaker: John Paul Chou (Rutgers, State Univ. of New Jersey (US))
      CERNLLPWorkshop.pdf
    • 17:50 → 18:20
      Capstone talk: milliQan 30m 4/3-006 - TH Conference Room

      4/3-006 - TH Conference Room

      CERN

      110
      Show room on map
      Speaker: Chris Hill (Ohio State University (US))
      milliQan_LLP_CERN_042617.pdf
    • 19:00 → 20:00
      Workshop dinner 1h Other Institutes

      Other Institutes

      Dinner will be at Il Piatto d'Oro...

      https://goo.gl/maps/JY96buQpzok

      ...just off the Jardin-Alpin-Vivarium stop of the 18 tram. Many of us will most likely catch the tram that leaves CERN at 18h42, if you'd like to caravan.

  • Wednesday 26 April
Powered by Indico v3.3.7-pre