Top LHC France 2018

23 mai 2018, 14:00 → 25 mai 2018, 15:00 Europe/Paris

Amphitéatre Charpak (LPNHE Paris (Amphi Charpak))

The Top LHC France workshop series aims to foster, at a national level, all research activities connected to the physics of the top quark. These meetings hence allow for theoretical and experimental high energy physicists working in France to informally discuss the recent LHC results. A particular emphasis is put on results that originate from the work performed in the French laboratories and new collaborations are also encouraged.

The first editions of the Top LHC France workshops were mostly oriented towards precision measurements in the top sector. With the LHC increase in energy and luminosity, the discussion started to focus, for the last couple of years, on processes and measurements where new physics could be hiding. The same considerations have driven the agenda of the future 2018 workshop, that hence includes the problematics of the measurement of the top Yukawa coupling (via t-tbar Higgs production), searches for new resonances decaying into a top-antitop system and non-resonant anomalous top production. Moreover, the hunt for top partners (in supersymmetry or compositeness contexts) is also addressed, together with the development of new theoretical tools and experimental techniques. Finally, the 2018 edition will trigger discussions on the future High Luminosity Run of the LHC.

Although most participants are working in French laboratories, the workshop is open to international participants who have strong links with France.

No vidyo link.

mercredi 23 mai

14:00 → 14:30 Introduction

14:00 Introduction to the workshop

Orateur: Dr jeremy andrea (IPHC)

Top-LHC-France-Open-2018.pptx

14:15 Welcome (local committee)

Orateurs: Benjamin Fuks (LPTHE Paris), Frederic DERUE (LPNHE Paris), Dr jeremy andrea (IPHC)

TopLHCFrance2018-Intro-Local.pdf

14:30 → 16:00 Modelling and SM

Présidents de session: Frederic DERUE (LPNHE Paris), Dr jeremy andrea (IPHC)

14:30 Precise prediction for ttbar, ttV, tH, ttH, ...

Orateur: Rikkert Frederix (University of Louvain)

frederix.pdf

14:50 ttbb: experimental results in ATLAS and CMS

Orateur: Tom Neep (CEA Saclay)

top_lhc_france.pdf

15:10 measurement of the tZq cross section

Orateur: M. Nicolas Tonon (Université de Physique et Ingénierie de Strasbourg)

TopLHCFrance_Tonon.pdf

15:30 Discussions

16:00 → 16:30 Coffee break

16:30 → 18:00 Top and Higgs 1

Présidents de session: Dr Frédéric Déliot (CEA-Saclay), Lorenzo Feligioni (CPPM)

16:30 ttH multilepton: background estimation

Orateur: Stylianos Angelidakis (LPC Clermont-Ferrand)

tthML_background.pdf

16:50 ttH multilepton: combination

Orateur: Robert Wolff (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR))

2018-05-23-ttH-Robert.pdf

17:10 Discussions

jeudi 24 mai

09:00 → 10:30 Top and Higgs 2

Présidents de session: Dr Frédéric Déliot (CEA-Saclay), Lorenzo Feligioni (CPPM)

09:00 ttH(->bb)

Orateur: Dr Timothée Theveneaux-Pelzer (Deutsches Elektronen-Synchrotron (DE))

TopLHCFrance2018_TTP.pdf

09:20 FCNC Top->Higgs in ATLAS and CMS, focussing to H->yy

Orateur: daniel FOURNIER (LAL-Orsay-F91405 France)

Fournier-TopFrance2018.pdf

09:40 Discussions

10:30 → 11:00 Coffee break

11:00 → 12:30 Top BSM 1

Présidents de session: Dr Frédéric Déliot (CEA-Saclay), Samuel Calvet (LPC)

11:20 top and dark matter: theoretical review

Orateur: ANDREAS GOUDELIS (LPTHE - Paris)

AndreasTopLHCfrance.pdf

11:40 top and dark matter: experimental review

Orateur: Sabine Crépé-Renaudin (LPSC Grenoble; IN2P3-CNRS)

topandDM_topLHCFrance2018_Sabine_Crepe-Renaudin.pdf

12:00 Discussions

12:30 → 14:00 Lunch

14:00 → 15:50 Tools

Présidents de session: Frederic DERUE (LPNHE Paris), Sabine Crépé-Renaudin (LPSC Grenoble; IN2P3-CNRS)

14:00 Satus of b-tagging in ATLAS and CMS

Orateur: Alessandro Calandri (CPPM, Aix-Marseille Université, CNRS/IN2P3 (FR))

btagging_TOPLHC_v5.pdf

14:20 Matrix Element Method in ATLAS and CMS

Orateur: Nicolas Chanon (IPNL)

NC_TopLHCFrance_MEM_2018_final.pdf

14:40 Particle Flow algorithms in ATLAS and CMS

Orateur: Colin Bernet (IPNL/IN2P3)

colinbernet_PF_TopLHCFrance_final.pdf

colinbernet_PF_TopLHCFrance_final.pptx

15:00 Boosted objects

Orateur: Vincent Theeuwes (University of Gottingen)

VTheeuwes-TOP.pdf

15:20 Discussions

16:10 → 16:40 Coffee break

16:40 → 17:50 Top BSM2

Présidents de session: Benjamin Fuks (LPTHE Paris), Sabine Crépé-Renaudin (LPSC Grenoble; IN2P3-CNRS)

16:40 Search for tb resonance in ATLAS and CMS

Orateur: Marija Marjanovic (LPC Clermont)

2018_05_24_Wp_tb.pdf

17:00 Search for ttbar resonance in ATLAS and CMS

Orateur: Andrey Popov (Institut de Physique Nucléaire de Lyon)

2018.05_Paris_Top-LHC-France_v3.pdf

17:20 Discussions

vendredi 25 mai

09:00 → 10:00 TOP BSM 3

Présidents de session: Benjamin Fuks (LPTHE Paris), Sabine Crépé-Renaudin (LPSC Grenoble; IN2P3-CNRS)

09:00 Top partners in VLQ models in CMS

Orateur: Nicolas Bizot (IPNL)

Top-LHC-France-2018-BIZOT.pdf

09:20 Search for VLQ and 4 tops in ATLAS and CMS

Orateur: M. Thibault Chevalérias (CEA Saclay)

ThibaultChevalerias_2018-05-25_TopLHCFrance.pdf

09:40 Discussions

10:00 → 10:30 Coffee break

10:30 → 12:00 HL-LHC

Présidents de session: Dr jeremy andrea (IPHC), roberto chierici (ipnl)

10:30 Detector upgrade and performances (ATLAS)

Orateur: Philippe schwemling (LPNHE-Paris/Universite Paris-7)

Top-LHC-France-ATLAS-Upgrades.pdf

10:50 Detector upgrades and performances (CMS)

Orateur: Daniel Bloch (IPHC Strasbourg)

bloch_Phase2_TOPLHCFR_25may18.pdf

11:10 Physics prospectives (ATLAS+CMS)

Orateur: Dr Frédéric Déliot (CEA-Saclay)

topLHCFrance_FDeliot.pdf

11:30 Discussions

12:00 → 13:30 Lunch