11th Annual Meeting of the Helmholtz Alliance "Physics at the Terascale"

27 Nov 2017, 14:00 → 29 Nov 2017, 16:30 Europe/Berlin

DESY Hamburg

Welcome to the 11th Annual Helmholtz Alliance Workshop on "Physics at the Terascale"! As in the past 10 years, the workshop will offer a rich programme of stimulating plenary talks and parallel sessions full of intense discussion on topics connected to the LHC, linear colliders, and Belle. The following parallel sessions will be held:
- Higgs physics
- Searches
- Top physics
- B physics
- Standard Model physics
- Linear Collider Forum
- Computing

Parallel sessions will take place on Tuesday, the plenary session is planned for Wednesday, and  a workshop dinner on Tuesday evening will round off the event.

Monday, 27 November

Linear Collider Forum - Physics, Analysis, Political Developments

Conveners: Dr Frank Simon (Max-Planck-Institute for Physics), Prof. Gudrid Moortgat-Pick (University of Hamburg / DESY), Prof. Ivor Fleck (University Siegen), Sabine Riemann (DESY), Dr Sabine Riemann (DESY)

1 Welcome

Speaker: Gudrid Moortgat-Pick (University of Hamburg / DESY)

Slides Poster-draft-2018.pdf

2 ICFA Statement on ILC

Speaker: Joachim Mnich (DESY)

3 Discussion

4 A global view on the Higgs self-coupling at lepton colliders

Speaker: Gauthier Durieux (DESY)

Slides durieux-lc-forum-nov-2017.pdf

5 Branching ratio measurement of H->mu+mu- at the ILC

Speaker: Shin-ichi Kawada (FLC)

Slides SK_Helmholtz_11th.pdf

15:30 Coffee Break

6 Nonlinear Compton Scattering: Comparison of two calculation methods

Speaker: Arne Müller (Universität Hamburg)

7 SUSY parameter fits in stau coannihilation scenarios

Speaker: Suvi-Leena Lehtinen (DESY - FLC)

Slides lehtinen-terascale2017.pdf

8 Gravitino masses

Speaker: Sebastian Prenzel (University Hamburg)

Slides Vortrag_Master_w_uncover.pdf

9 Gaugino Property Determination as Performance Study for a Fast Detector Simulation at the ILC

Speaker: Madalina Chera (DESY)

Slides LCForum17MChera.pdf

10 gamma gamma background

Speaker: Swathi Sasikumar (DESY)

Slides LCForum17_Swathi.pdf

11 From Polarimetry to Anomalous Triple Gauge Couplings

Speaker: Mr Robert Karl (DESY)

Slides PolarimetryAndTGC.pdf

Tuesday, 28 November

B-physics

Conveners: Dr Ami Rostomyan (DESY), Dr Maiko Takahashi (ETH Zurich)

12 Flavor Theory 2017 plus (a primer)

Speaker: Prof. Gudrun Hiller (TU Dortmund)

Slides DESY-flavorprimer-ghiller2017.pdf

13 CKM Parameters: Present and Future

Speaker: Dr Florian Bernlochner (University of Bonn)

Slides Helmholtz.pdf

14 CP Violation Measurements at B-Factories and Hadron Colliders

Speaker: Thomas Kuhr (LMU München)

Slides CPV_Kuhr.pdf

Higgs

Conveners: Dr Anna Kulesza (University of Muenster), Dr Chayanit Asawatangtrakuldee (DESY), Dr Jenny List (DESY Hamburg), Sarah Heim (DESY)

15 “Search for additional Higgs bosons in WW final states with CMS”

Speaker: Dennis Roy (RWTH)

Slides Terascale_HWW.pdf

16 “Search for Higgs dimuon decay with CMS”

Speaker: Mr Oliver Rieger (University of Hamburg)

Slides h2mu_2311_terascale17.pdf

17 “Search for additional neutral MSSM Higgs bosons in the di-tau final state in pp collisions at √s = 13 TeV”

Speaker: Dr Roger Wolf (Karlsruhe Institut für Technologie (KIT))

Slides Terascale-MSSM-HTT-2017.pdf

18 Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb−1 of pp collisions at s√ = 13 TeV with the ATLAS detector - part 2

Speaker: Dr Lei Zhang (University of Freiburg)

Slides 2017Nov28_TeraWorkshopHamburg_talk.pdf

19 Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb−1 of pp collisions at s√ = 13 TeV with the ATLAS detector - part 1

Speaker: Dirk Duschinger (TU Dresden)

Slides Terrascale_20171128.pdf

Searches: Exotics

Conveners: Erdmann Johannes (TU Dortmund), Dr Frederik Ruehr (University of Freiburg), Johannes Erdmann (Georg-August-Universität Göttingen, II. Physikalisches Institut), Roman Kogler (University of Hamburg), Thorsten Ohl (Universität Würzburg)

20 Search for vector-like quarks in the tH and tW decay channels with CMS

Speaker: Svenja Schumann (University of Hamburg)

Slides Vortrag_terascale17_v3.pdf

21 Search for pair production of vector-like top quarks in the Zt+X channel (ATLAS)

Speaker: Mr Jan Küchler (Bergische Universität Wuppertal)

Slides ZtX_Kuechler.pdf

22 Search for pair production of third generation leptoquarks decaying to top quarks and taus or muons (CMS)

Speaker: Mr Arne Christoph Reimers (University of Hamburg)

Slides 171128_Terascale1717.pdf

23 Interpretation of Simplified Model results from the LHC with SModelS

Speaker: Malte Mrowietz (Universität Hamburg)

Slides Terascale_talk.pdf

24 Search for charged Lepton Flavour Violation in Z boson decays at CMS

Speaker: Tom Croote

25 Model Unspecific Search in CMS (MUSiC) at 13 TeV

Speaker: Mr Tobias Pook (Physikalisches Institut 3A RWTH Aachen University)

Slides music_terascale2017.pdf

Standard Model

Conveners: Dr James Ferrando (DESY), Ralf Ulrich (Karlsruhe Institute of Technology), Mr Ralf Ulrich (FZK, IK), Sven-Olaf Moch (UHH)

26 Automation of NLO EW corrections with Sherpa and Recola

Speaker: Mr Stephan Bräuer (Georg-August-Universität Göttingen)

Slides Terascale_Meeting_2017_StephanBraeuer.pdf

27 Tau polatisation in Z boson decays with CMS

Speaker: Peter Fackeldey (DESY)

Slides terasscale_update.pdf

28 W+jets with ATLAS

Speaker: Dr Valerie Lang (DESY)

Slides Wjets_ATLAS_HelmholtzMeeting_VLang_28112017.pdf

Top

Conveners: Mrs Andrea Knue (Uni Göttingen), Dr Carmen Diez Pardos (DESY), Prof. Peter Uwer (Humboldt-Universität zu Berlin)

29 Soft gluon resummation for the associated production of a top quark pair with a W or Z boson at the LHC

Speaker: Daniel Schwartländer (Uni Muenster)

Slides Talk_Terascale.pdf

30 Fiducial and Differential Cross Section Measurement of the 8TeV tt+gamma Production

Speaker: John Meshtreki (Uni Siegen)

31 Associated production of a single top-quark and a vector boson with ATLAS at 13 TeV

Speaker: Rui Zhang (Uni Bonn)

Slides tV-Terascale2017.pdf

10:40 Coffee break

B-physics

Conveners: Dr Ami Rostomyan (DESY), Dr Maiko Takahashi (ETH Zurich)

32 An overview of anomalies in rare B decay measurements

Speaker: Dr Eluned Smith

Slides ElunedSmith_RareB.pdf

33 Lepton flavour universality and rare B-meson decays

Speaker: Dr Simon Wehle

Slides Helmholtz17.pdf

34 X, Y, Z and more exotic beasts

Speaker: Dr Elisabetta Prencipe

Slides Prencipe_DESY2017.pdf

Higgs

Conveners: Dr Anna Kulesza (University of Muenster), Dr Chayanit Asawatangtrakuldee (DESY), Dr Jenny List (DESY Hamburg), Sarah Heim (DESY)

35 Measurement of the tau energy scale uncertainty for Higgs physics in Run II at ATLAS

Speakers: Michael Huebner (Bonn), Mr Michael Hübner (Universität Bonn)

Slides mhuebner_terascale.pdf

36 “Identification of hadronically decaying tau leptons and determination of the energy scale for studies of h--> tau tau decays”

Speaker: Ms Olena Hlushchenko (ZEUS, qcd working group)

Slides terascale_rev3.pdf

37 “Higgs->tautau coupling measurement in the lepton-hadron final state using the ATLAS detector”

Speaker: Mr Antonio De Maria (II Physics Inst. University of Goettingen)

Slides talk_Terascale_meeting_ADM.pdf

38 “Measurement of the H->tautau coupling exploiting tau lepton decay mode classification in the semi-leptonic final state at ATLAS”

Speaker: Lara Schildgen (Physikalisches Institut der Universität Bonn)

Slides Terascale2017_Schildgen.pdf

39 “Higgs physics at the ILC”

Speaker: Dr yan wang (desy)

Slides yanwang_Higgs_physics_at_ILC.pdf

Searches: Theory

40 Challenging the Little Higgs by LHC 13 TeV data

Speaker: Ms So Young Shim (DESY)

Slides LittleHiggs_talk.pdf

41 Flavorful Leptoquarks at Colliders

Speaker: Mr Dennis Loose (TU Dortmund)

Slides lq-lhc_2017_hamburg.pdf

42 FlexibleSUSY 2.0 and FlexibleMW: Automated calculation of the muon decay

Speaker: Mr Markus Bach (TU Dresden)

Slides talk.pdf

43 SUSY perspectives at Run-II and e+e- collider

Speaker: Dr Emanuele Angelo Bagnaschi (DESY Hamburg)

Slides Terascale-2017-BAGNASCHI.pdf

44 SCYNet: a tool for fast global fits to collider searches

Speaker: Mr Abtin Narimani (University of Bonn)

Slides Abtin_Terascale_Meeting_17.pdf

Standard Model

Conveners: Dr James Ferrando (DESY), Mr Ralf Ulrich (FZK, IK), Ralf Ulrich (Karlsruhe Institute of Technology), Sven-Olaf Moch (UHH)

45 Forward physics with CASTOR in CMS

Speakers: Dr Sebastian Baur (KIT), Mr Sebastian Baur (KIT)

Slides SBaur_Terascale2017_CMSForwardWithCASTOR.pdf

46 What is a parton shower?

Speaker: Dr Zoltan Nagy (DESY)

Slides znagy.pdf

47 H1+ZEUS diffractive results

Speaker: Dr Radek Zlebcik (DESY)

Slides TerascaleZlebcik.pdf

Top

Conveners: Mrs Andrea Knue (Uni Göttingen), Dr Carmen Diez Pardos (DESY), Prof. Peter Uwer (Humboldt-Universität zu Berlin)

48 Top quark mass at CMS in Run II

Speaker: Johannes Lange (Hamburg University)

Slides 2017-11-28_JohannesL.pdf

49 Measurement of the boosted top jet mass distribution in CMS

Speaker: Mr Torben Dreyer (university Hamburg)

Slides BoostedTopJetMass_TeraScale2017.pdf

50 B-Tagging calibration in ATLAS for Run II

Speaker: Jannik Geisen (Georg-August-Universitaet Goettingen)

Slides GeisenJannik_BTagging_17-11-28.pdf

12:40 Lunch break

Computing

Conveners: Dr Manuel Giffels (Karlsruher Institut für Technologie (KIT)), Dr Thomas Kress (RWTH Aachen, IIIb)

51 ATLAS Virtualization on a shared HPC system - Lessons learned and what's next

Speaker: Mr Felix Bührer (Uni Freiburg)

Slides fbuehrer_Helmholtz17.pdf

52 XRootD and Singularity setups for Grid integration of pledged and opportunistic resources on shared HPC systems

Speaker: Dr Kilian Schwarz (GSI)

Slides GSI_T2_ALICE_Terascale_271117.pdf

53 Container technology for Phenomenology tools

Speaker: Dr Emanuele Angelo Bagnaschi (DESY Hamburg)

Slides udocker-BAGNASCHI.pdf

54 Comparing the Grid and Cloud model

Speaker: Gerhard Rzehorz (Georg-August-Universität Göttingen)

Slides rzehorz_terascale_v2.pdf

55 Dynamic provisioning of opportunistic resources for HEP

Speaker: Matthias Schnepf (Karlsruhe Institute of Technology)

Slides dynamic_provisioning_of_opportunistic_resources_for_HEP.pdf

56 Alternative computing architectures in ATLAS

Speaker: Joshua Smith (Georg-August-Universität Göttingen)

Slides Alternative_architectures_jwsmith.pdf

57 The future of the GridKa Tier 1

Speaker: Andreas Petzold (KIT)

Slides terascale-desy-gridka-20171128-small-v1.pdf

58 The HEP Software Foundation

Speaker: Benedikt Hegner (CERN)

Slides HSF_CWP_Presentation_DESY.pdf

Higgs

Conveners: Anna Kulezka, Dr Chayanit Asawatangtrakuldee (DESY), Dr Jenny List (DESY Hamburg), Sarah Heim (DESY)

59 “Studies of the Higgs-boson CP in the initial and final states using Higgs to tautau events from the CMS experiment”

Speaker: Ms Claudia Pistone (Rheinisch-Westfaelische Tech. Hoch. (DE))

Slides pistone.pdf

60 CP properties and couplings from chi2 fits to Tevatron LHC data

Speaker: Mr Tobias Klingl (Universität Bonn)

Slides Talk_TerascaleHamburg.pdf

61 “Flavour Physics meets Heavy Higgs Searches”

Speaker: Paul Ayan (INFN)

Slides HZ_DESY_2017_(1).pdf

Linear Collider Forum - Detectors and Machine R&D

Conveners: Dr Frank Simon (Max-Planck-Institute for Physics), Prof. Gudrid Moortgat-Pick (University of Hamburg / DESY), Prof. Ivor Fleck (University Siegen), Sabine Riemann (DESY), Dr Sabine Riemann (DESY)

62 A Large Area Strip Telescope and its use for the LCTPC

Speaker: Mr Uwe Krämer (DESY)

Slides LC_Forum_2017.pdf

63 Particle Identification with the High Granularity TPC Readout ROPPERI

Speaker: Ulrich Einhaus (FLC)

Slides dEdx - ROPPERI - U Einhaus

64 The energy deposition over the length of the ILC undulator

Speaker: Khaled Alharbi (KACST)

Slides Alharbi_Khaled-HAMBURG_28.11.2017.pdf

65 Temperature distribution in the target for the undulator based ILC positron source

Speaker: Felix Dietrich (DESY)

Slides AHM_FD_17.pdf

66 Target material tests at facilities in Hamburg

Speaker: Prof. Wolfgang Hillert (University of Hamburg, Institute of Experimental Physics)

Slides LC-Forum-11-2017.pdf

Searches: SUSY

67 Latest developments in improving the specific energy loss measurements in the tracking detector as a variable for future exotic searches at ATLAS

Speaker: Philipp König (Universität Bonn)

Slides Terascale_28_11_Koenig.pdf

68 SUSY searches with jets and MET in the final state with the CMS detector

Speaker: Mr Marek Niedziela (SUSY)

Slides cms_sus_16_033_terascale17(2).pdf

69 BDT and multi-bin analyses in the context of squark and gluino searches in the 0-lepton final state at ATLAS

Speaker: Manuel Guth (University of Freiburg)

Slides Terascale-17_BDT-Multi-Bin_studies-SUSY-0-lepton.pdf

70 Search for direct stop squark production in semi-leptonic ttbar + MET events at ATLAS

Speaker: Daniela Boerner (Bergische Universität Wuppertal)

Slides stop1L_Boerner.pdf

71 Search for top-squark pair production in the semi-leptonic final state with the ATLAS detector

Speaker: Julian Wollrath (University of Freiburg)

Slides Terascale_Stop1l_Wollrath.pdf

72 Searches for supersymmetry and dark matter signatures in the ttbar+MET final state at ATLAS

Speaker: Mr Nicolas Koehler (Max-Planck-Instituts für Physik München)

Slides koehler171128.pdf

73 Dark Matter at the ILC: Mono-Photon and SUSY Searches

Speaker: Mr Moritz Habermehl (FLC)

Slides MHabermehl_Terascale17_DM_at_ILC.pdf

74 Search for resonant slepton production in R-parity violating SUSY scenarios with CMS

Speaker: Philipp Millet (RWTH-Aachen, Phys. Inst IIIA)

Slides 2017-11-28__Terascale_Hamburg__Resonant_Slepton_Production.pdf

75 SUSY searches at 13 TeV with two same-sign leptons or three leptons, jets and Etmiss at the ATLAS detector - Background estimation and latest analysis results

Speaker: Peter Tornambe (University of Freiburg)

Slides Terascale_2017_tornambe.pdf

76 Search for the direct production of charginos and neutralinos in final states with tau leptons at LHC

Speaker: Zinonas Zinonos (MPI Munich)

Slides ATLAS-CMS-staus-Terascale-2017.pdf

Standard Model

Conveners: Dr James Ferrando (DESY), Ralf Ulrich (Karlsruhe Institute of Technology), Mr Ralf Ulrich (FZK, IK), Sven-Olaf Moch (UHH)

77 Z+jet calibration in CMS

Speaker: Christoph Heidecker (KIT)

Slides Terascale-meeting-2017-cheidecker-2.pdf

78 Exclusive gamma+gamma --> mu+mu- with ATLAS

Speaker: Mr Mateusz Dyndal (DESY)

Slides mdyndal_2017-11-28_terascale.pdf

79 Strange and non-strange distributions from collider data

Speaker: Sergey Alekhin (DESY)

Slides alekhin.pdf

80 Measurement of correlations in multi jet events with CMS at 13TeV

Speaker: Mr Armando Bermudez Martinez (DESY)

Slides TeraScale17_Armando.pdf

81 Higher order QCD corrections to heavy quark form factors

Speaker: Dr Narayan Rana (DESY)

Slides RanaTerascale17.pdf

82 Determination of alphas using H1 jet cross section measurements

Speaker: Daniel Britzger (Universität Heidelberg)

Slides 171128-Terascale-britzger-H1Jets.pdf

Combined Top and Higgs

Conveners: Mrs Andrea Knue (Uni Göttingen), Dr Anna Kulesza (University of Muenster), Dr Carmen Diez Pardos (DESY), Dr Chayanit Asawatangtrakuldee (DESY), Dr Jenny List (DESY Hamburg), Prof. Peter Uwer (Humboldt-Universität zu Berlin), Sarah Heim (DESY)

83 Search for heavy Higgs bosons decaying to top quarks: status and prospects

Speaker: Yu-Heng Chen (DESY ATLAS Group)

Slides [20171128]_Terascale_Workshop.pdf

84 Fake Estimation in the ttH ( H → bb ) Analysis in the Single Lepton Channel with the ATLAS Experiment

Speaker: Mr Johannes Mellenthin (Georg-August-Universität Göttingen)

Slides jmellenthin_Terascale.pdf

85 Evidence for ttH production at the ATLAS detector

Speaker: Paul Glaysher (DESY)

Slides ttH_TeraScale.pdf

16:30 Coffee break

86 DESY Seminar: News from B-factories

Speaker: Dr Maiko Takahashi (DESY)

Slides DESYSeminar_20171128_BelleBelleII_final_unstaged.pdf

87 Institute assembly

Agenda (protected) https://indico.desy.de/conferenceDisplay.py?confId=19135

NAF Users' Meeting

Conveners: Dr David South (DESY), Dr Yves Kemp (DESY)

88 NAF status and prospects

Speakers: Mr Christoph Beyer (DESY IT), Dr Yves Kemp (DESY)

Slides naf-users-meeting-28112017.pdf

19:00 Workshop dinner

Wednesday, 29 November

Plenar 1

89 Welcome

Speaker: Joachim Mnich (DESY)

90 The Alliance "Physics at the Terascale"

Speaker: Dr Ties Behnke (DESY)

Slides Alliance_Annual_Meeting.pdf

91 Long Baseline Neutrino Experiments

Speaker: Prof. Mark Thompson (Cambridge)

Slides DESY-November-2017-Thomson-novideo.pdf

92 SM physics and SM Higgs at the LHC

Speaker: Tatjana Lenz (Univ. Bonn)

Slides 29_11_2017_Terascale_Lenz.pdf

10:50 Coffee Break

Plenar 2

93 HL Upgrades of ATLAS and CMS Experiments

Speaker: Dr Georg Steinbrueck (Hamburg University)

Slides HGF2017_Steinbrueck.pdf HGF2017_Steinbrueck.pptx

94 BSM physics - where will we go to?

Speaker: Christophe grojean (DESY)

Slides Grojean_Terascale_2017_11_29.pdf

12:45 Lunch

Plenar 3

95 Outreach: Netzwerk Teilchenwelt

Speaker: Ms Barbara Warmbein (DESY)

Slides 2017-11-Warmbein_Terascale.pptx

96 Very high frequency accelerators

Today, high brightness and highly relativistic electron beams are generated by circular or linear accelerators (LINAC) typically operating with 1-3 GHz accelerating frequencies and approaches towards X-band frequencies in the 10 GHz range are maturing. The achievable accelerating gradients are limited by field emission from cavity walls or pulsed heating to several tens of MV/m in the case of low frequencies and up to 100 MV/m in the case of X-band frequencies. Moving up in frequency to the Terahertz (THz) or even Infrared frequency range, here hundreds of GHz or 2 um, respectively, experimentally confirmed scaling laws predict the realization of few-hundred MV/m to 1 GV/m accelerating fields in THz devices and multi-GV/m gradients in the infrared range. At DESY an ERC Synergy Project called Attosecond X-ray Science: Imaging and Spectroscopy (AXSIS) is underway to demonstrate THz-based accelerators and X-ray sources. Several of its team members and the DESY Laser Group are also heavily involved in an international research program towards direct laser acceleration using 2 m light, called Accelerator on a Chip Program (ACHIP), and is funded through the Betty and Gordon Moore foundation. The high field strength and field gradients enable direct generation of very short bunches in compact devices. The talk will highlight the promises, progress and challenges of these projects.

Speaker: Prof. Franz Kaertner (CFEL)

Slides 2017_11_29_Terascale.pptx

97 Physics opportunities at future hadron colliders

Speaker: Matthew Philip Mccullough

Slides DESY.pdf