Searching for long-lived particles at the LHC: Fourth workshop of the LHC LLP Community

23 Oct 2018, 08:00 → 25 Oct 2018, 21:00 Europe/Zurich

Turingzaal, Z011 (Amsterdam Science Park)

We welcome you to the fourth workshop of the LHC Long-Lived Particle (LLP) Community, taking place from 23 to 25 October 2018 in Amsterdam!

The LHC LLP Community, composed of experimentalists from ATLAS, CMS, LHCb, as well as theorists, phenomenologists and those interested in LLP searches with dedicated LHC detectors such as milliQan, MoEDAL, MATHUSLA, FASER, CODEX-b, etc. -- and continuing the tradition established by the previous workshops -- will meet again to discuss the hottest-and-latest in LLP searches and examine the future challenges of the field. 

In particular, we expect there to be some focus on the planned HL-LHC upgrades; the status of dark showers resulting from dark, QCD-like sectors and the challenges of simulation thereof; the phenomenology of heavy neutral leptons (HNLs); and the prospects of both imminent dedicated LLP detectors at the LHC as well as exciting future projects such as the FCC, CEPC, and CLIC.

The LLP community is a discussion space open to all scientists. As such we fully adhere to the CERN Code of Conduct. Community is collaboration, and collaboration is respect.

FourthWorkshop_LHC_LLP_Community.pdf

Tuesday 23 October

09:00 → 09:25 Registration

09:25 → 09:40 Welcome talk from Nikhef's director

Speaker: Stan Bentvelsen (Nikhef National institute for subatomic physics (NL))

OpeningLongLived-SB.pdf

09:40 → 09:50 Welcome and logistics

Speaker: Carlos Vazquez Sierra (Nikhef National institute for subatomic physics (NL))

LogisticsLLPWorkshop.pdf

09:50 → 10:10 Introduction to LHC LLP community

Speaker: James Beacham (Duke University (US))

Beacham_LHC_LLP_Nikhef_Intro_2018Oct23.pdf

10:10 → 10:35 Searches for LLPs at Belle-II

Speaker: Doris Yangsoo Kim (Soongsil University)

BelleII_DorisKim_v2.1.pdf

10:35 → 11:05 Coffee break

11:05 → 11:30 Heavy charged particles in ANITA experiment

Speaker: Derek Fox (Penn State University)

Fox-ANITA_Events.pdf

11:30 → 12:00 Theory overview

Speaker: José Francisco Zurita (KIT)

Zurita_Theory_Overview.pdf

12:00 → 12:30 Experimental overview

Speaker: Sascha Mehlhase (Ludwig Maximilians Universitat (DE))

2018-10-23 LLP.pdf

12:30 → 12:45 Discussion

12:45 → 14:15 Lunch

14:15 → 14:35 Emerging jets: theory perspective

Speaker: Pedro Klaus Schwaller (Mainz University)

Amsterdam_LLP.pdf

14:35 → 14:55 Emerging jets: experimental perspective

Speaker: Kevin Pedro (Fermi National Accelerator Lab. (US))

emerging jets LLP2018.pdf

14:55 → 15:15 Discussion

15:15 → 15:20 Micro-break

15:20 → 15:40 Dark matter and displaced decays of Hidden Valley mesons

Speaker: Hugues Beauchesne (Ben-Gurion University of the Negev)

DMHiddenValleyDisplaced.pdf

15:40 → 16:05 Theory ideas for ATLAS/CMS

Speakers: Alberto Escalante Del Valle (Austrian Academy of Sciences (AT)), James Beacham (Ohio State University (US)), José Francisco Zurita (KIT), Pedro Klaus Schwaller (Mainz University), Ryu Sawada (University of Tokyo (JP)), Steven Lowette (Vrije Universiteit Brussel (BE))

Theory_IDEAS_ZURITA.pdf

16:05 → 16:25 Theory ideas for LHCb/Belle-II

Speakers: Carlos Vazquez Sierra (Nikhef National institute for subatomic physics (NL)), Elena Dall'Occo (Nikhef National institute for subatomic physics (NL)), Yuhsin Tsai (University of Maryland)

theory ideas_LHCb.pdf

16:25 → 16:40 Wrap-up discussion

16:40 → 17:10 Coffee break

17:10 → 17:30 CODEX-b

Speaker: Simon Knapen (Institute for Advanced Study)

amsterdam_CODEX.pdf

17:30 → 17:50 MATHUSLA

Speaker: Cristiano Alpigiani (University of Washington, Seattle)

LLPworkshop_MATHUSLA_CristianoAlpigiani_AmsterdamOctober2018.pdf

17:50 → 18:10 milliQan

Speaker: Matthew Daniel Citron (Univ. of California Santa Barbara (US))

milliQanLLPWorkshopTalk.pdf

18:10 → 18:15 Micro-break

18:15 → 18:35 Prospects on LHC detector upgrades

Speaker: Victor Coco (CERN)

LLP_LHCUpgrade.pdf

18:35 → 18:55 Experimental prospects on LHC searches during Run 3 and 4

Speaker: Simone Pagan Griso (Lawrence Berkeley National Lab. (US))

spagan_LLP_Run34.pdf

19:00 → 20:30 Welcome reception

Wednesday 24 October

09:00 → 09:25 Future pp colliders and experiments

Speaker: Filip Moortgat (CERN)

LLP_Nikhef_Filip.pdf

09:25 → 09:50 MAMI/MESA and the potential for searching for dark photons/dark matter with MAGIX and BDX

Speaker: Achim Denig (Univ. Mainz)

Amsterdam_Oct2018_denig_pdf.pdf

09:50 → 10:15 Long-lived particles beyonds colliders

Speaker: Gaia Lanfranchi (INFN e Laboratori Nazionali di Frascati (IT))

LLP_Lanfranchi.pdf

10:15 → 10:45 Coffee break

10:45 → 11:05 R-parity violation and light neutralinos at CODEX-b, FASER and MATHUSLA

Speaker: Zeren Simon Wang (University of Bonn)

Oct2018_Amsterdam_LLP_LHC_Workshop_WANG.pdf

11:05 → 11:25 New physics opportunities in the ALICE/L3 cavern for LHC Run 5

Speaker: Ben Nachman (Lawrence Berkeley National Lab. (US))

AL3X.pdf

11:25 → 11:50 Heavy Neutral Leptons: theory perspective

Speaker: Marco Drewes (Universite Catholique de Louvain (UCL) (BE))

LLP-Workshop2018.pdf

11:50 → 12:15 Heavy Neutral Leptons: experimental perspective

Speaker: Philippe Mermod (Universite de Geneve (CH))

LHCLLP_Mermod_24Oct18.pdf

12:15 → 13:45 Lunch

13:45 → 14:05 Hunting Hidden Photons

Speaker: Patrick Foldenauer

HPs_LLP_PF.pdf

14:05 → 14:25 Displaced dimuons and dark photons: experimental perspective

Speaker: Antonio Policicchio (Sapienza Università di Roma and INFN ROMA1)

dark_photon_experiments_policicchio.pdf

14:25 → 14:45 Discussion

14:45 → 15:15 Coffee break

15:15 → 15:35 Heavy charged particles: theory perspective

Speaker: Dr Jan Heisig (Université catholique de Louvain (UCL))

Heisig_LLP_Amsterdam2018.pdf

15:35 → 15:55 Heavy charged particles: experimental perspective

Speaker: Laura Jeanty (University of Oregon (US))

jeanty_LLPworkshop_24Oct2018.pdf

15:55 → 16:15 Discussion

16:15 → 16:20 Workshop picture

To be taken outside the Turingzaal.

16:20 → 16:40 FASER

Speaker: Shih-Chieh Hsu (University of Washington Seattle (US))

FASER_2018.pdf

16:40 → 17:00 MoEDAL & MaPP

Speaker: James Pinfold (University of Alberta (CA))

4th LLP Workshop 2018.pdf

17:00 → 17:30 Searching for a stable sexaquark and related topics

Speaker: Glennys Farrar (NYU)

sexaquarkLHC102418.pdf

17:30 → 17:50 Long-lived scalars in the U(1) and left-right symmetric models at LHC and MATHUSLA

Speaker: Dr Yongchao Zhang

LLP_Amsterdam.pdf

17:50 → 18:10 Dark compton process in beam-dump experiments

Speaker: Igal Jaegle

igal_jaegle_LHC_LPP.pdf

18:10 → 18:20 Wrap-up discussion

20:00 → 23:30 Workshop dinner

The traditional workshop dinner will take place on Wednesday at the Long Pura restaurant at Jordaan, which offers a wide variety of Indonesian dishes. The address of Long Pura is Rozengracht 46-48, 1016 ND Amsterdam (to find the best route using public transport, we suggest you to use 9292.nl). The dinner will start at 20h.

Tickets for the dinner (including food and drinks) can be bought in the reception desk in front of Turingzaal during Tuesday and Wednesday (morning). The cost of each ticket is of 55 EUR.

The easiest way to go to the restaurant Long Pura is:
1) Take the train at Science Park station to Amsterdam Central station.
2) At Amsterdam central station take tram 13 - it leaves from the west-side of the station (when you come out to the right).
3) Get off the tram 13 at the stop called Westermarkt.
4) Walk to the restaurant.

We will leave at 18h50 from the door of the CWI Congress Centre.

Thursday 25 October

09:00 → 09:20 Machine learning techniques for dark photons at ATLAS

Speaker: Cristiano Sebastiani (Sapienza Universita e INFN, Roma I (IT))

sebastiani_machine_learning_dark_photons_atlas.pdf

09:20 → 09:40 Software-based trigger Turbo framework at LHCb

Speaker: Roel Aaij (Nikhef National institute for subatomic physics (NL))

raaij_Turbo_LLPs.pdf

09:40 → 10:00 Data scouting, parking and its potential to search for LLPs in CMS

Speaker: Ms Swagata Mukherjee (Rheinisch Westfaelische Tech. Hoch. (DE))

LLP_Swagata.pdf

10:00 → 10:15 Discussion

10:15 → 10:45 Coffee break

10:45 → 11:05 The heavy metal path to New Physics

Speaker: Jan Hajer (HKUST)

A Heavy Metal Path to New Physics

11:05 → 11:25 Long live the Higgs Portal

Speaker: Anastasiia Filimonova (Heidelberg University)

Filimonova_Long_Live_Higgs_Hortal_LLP.pdf

11:25 → 11:45 Machine learning for Dark Showers

Speaker: Gregor Kasieczka (Hamburg University (DE))

Autoencoder_DarkShowers_LLP.pdf

11:45 → 12:05 Long-Lived BLSSM Particles at the LHC

Speaker: Ahmed Hammad (Universität Basel)

LLP_2018.pdf

12:05 → 12:20 Wrap-up discussion

12:20 → 12:25 Micro-break

12:25 → 12:55 Summary and closeout

Speaker: Alberto Escalante Del Valle (Austrian Academy of Sciences (AT))

SummaryTalkAlbertoV2.pdf

13:00 → 14:30 Lunch