COMPOSITION

Sep 21, 2015, 10:00 AM → Sep 23, 2015, 4:00 PM Europe/Berlin

Bld 401 Room 410 (KIT Campus North)

The Helmholtz Alliance for Astroparticle Physics HAP organizes this workshop which is dedicated to discussions on the data and physics of cosmic ray composition between the knee and the ankle in the view of theoretical models for the transition from galactic to extragalactic origin of cosmic rays.

Topics of the workshop are: 

• Experimental results on spectrum, elemental composition, and anisotropies
• Models of astrophysical sources and source populations and CR propagation  (including the changes in the transition region)
• Hadronic interaction models and shower physics

The idea is to discuss and compare and interpret in detail the available and in near future expected cosmic ray data in this energy range and its systematic uncertainties. Among others, colleagues of KASCADE-Grande, IceTop, Tunka, Auger-Enhancements, TALE will hopefully be present at the workshop as well as colleagues from cosmic ray theory and model builders.

 

Program Committee: Denis Allard, Doug Bergmann, Pasquale Blasi, Ralph Engel, Francis Halzen, Andreas Haungs, Johannes Knapp, Daniel Kuempel, Sergej Ostapchenko, Sven Schoo

Local Organisation: Sabine Bucher, Andreas Haungs, Sven Schoo

 

Poster Conference Poster (high resolution) Conference Poster (low resolution)

Monday, September 21

10:00 AM → 11:00 AM Arrival

Registration

11:00 AM → 12:50 PM Overviews

11:00 AM Welcome / Intro / Scope of Meeting

Speaker: Andreas Haungs

Slides Intro-Haungs-Comp15.pdf

11:10 AM Overview: Hadronic Interactions and Shower Physics

Speaker: Ralph Engel

Slides HadIntShower-comp-2015.pdf

12:00 PM Overview: Experimental Results

Speaker: Antonella Castellina

Slides Castellina_KIT2015.pdf

12:50 PM → 2:30 PM Lunch

2:30 PM → 3:20 PM Overviews

2:30 PM Overview: Source and Propagation Models

Speaker: Pasquale Blasi

Slides Karlsruhe21-09-2015_BLASI.pdf

3:20 PM → 4:00 PM Contributions

3:20 PM Composition Results from Auger

Speaker: Markus Roth

Slides Composition-Auger-Roth.pdf

3:40 PM Composition Results from TA and TALE

Speaker: Douglas Bergman

Slides comp2015-bergman.pdf

4:00 PM → 4:30 PM Coffee

4:30 PM → 6:00 PM Contributions

4:30 PM Performance and future Evolution of QGSJET

Speaker: Sergey Ostapchenko

Slides qgsjetII.pdf

4:50 PM Performance and future Evolution of EPOS

Speaker: Tanguy Pierog

Slides HAP_EPOS_Pierog.pdf

5:10 PM Performance and future Evolution of SIBYLL

Speaker: Felix Riehn

Slides HAP_composition_2015_sibyll_v4.pdf

5:30 PM CR acceleration at Supernova remnants / Galactic CR maximum Energy

Speaker: Gwenael Giacinti

Slides Giacinti_KIT_1.pdf

5:45 PM Investigation of the Galactic Magnetic Field using Ultra-High Energy Cosmic Rays

Speaker: Martin Erdmann

Slides KIT2015_20150921_Erdmann.pdf

6:00 PM → 6:45 PM Discussions

Tuesday, September 22

9:00 AM → 10:55 AM Contributions

9:00 AM Direct composition measurements: status and prospects

Speaker: Stephane Coutu

Slides 2015_CompWkshp_DirectStudies_posted.pdf

9:20 AM Composition measurements by direct Cherenkov light observed by IACTs

Speaker: Henrike Fleischhack

Slides vortragDirectCherenkov-HenrikeFleischhack.pdf

9:30 AM HAWC: The high-altitude water Cherenkov gamma-ray observatory

Speaker: Juan Carlos Arteaga-Velazquez

Slides arteaga_HAWC_HAP_2015_v4.pdf

9:50 AM Multi-parameter Measurements of CR Species for Their Knees as well as Argo-YBJ results

Speaker: Zhen Cao

Slides File1-LHAASO_ARGO-YBJ_2015.pdf

10:15 AM Overview of KASCADE-Grande results

Speaker: Sven Schoo

Slides schoo_hap_compo15.pdf

10:35 AM Elemental Composition of Cosmic Rays with Tunka-133

Speaker: Sergey Epimakhov

Slides 2015karlsruhe_epimakhov.pdf

10:55 AM → 11:15 AM Coffee

11:15 AM → 12:45 PM Contributions

11:15 AM Measuring the Muon Content of Air Showers with IceTop

Speaker: Javier Gonzales

Slides jgonzalez_IceTopMuons.pdf

11:30 AM Cosmic Ray composition between ~1 PeV and ~1 EeV with 3 years of IceTop and IceCube data

Speaker: Sam de Ridder

Slides deRidder_composition_IceTop_IceCube.pdf

11:45 AM Neutrino-cosmic ray connection: The GRB case

Speaker: Walter Winter

Slides Winter-150921HAPComposition.pdf

12:05 PM Measurements at LHC and their relevance for air shower physics

Speaker: Ralf Ulrich

Slides COMPOSITION_RalfUlrich.pdf

12:30 PM On hidden uncertainties in CORSIKA

Speaker: Johannes Knapp

Slides jk-talk-HAP-composition.pdf

12:45 PM → 2:00 PM Lunch

2:00 PM → 3:30 PM Contributions

2:00 PM Cosmic Ray accelerators seen with Gamma ray astronomy

Speaker: Stefan Ohm

Slides Ohm-HAP_composition_Karlsruhe2015.pdf

2:20 PM CR anisotropy and composition in the sub-ankle region as a way to constrain the energy of the transition from Galactic to extragalactic CRs

Speaker: Gwenael Giacinti

Slides Giacinti_KIT_2.pdf

2:40 PM Prospects and benefits of using data from historic projects

Speaker: Alan Watson

Slides 2015_09_Watson_KIT_Meeting_on_Composition.pdf

3:00 PM EAS Composition Studies: Some Data and Physics in the last 25 Years

Speaker: James Matthews

Slides HAP_matthews.pdf

3:30 PM → 4:00 PM Coffee

4:00 PM → 5:00 PM Contributions

4:15 PM Transition from galactic to extragalactic cosmic rays: cosmic rays, secondary neutrinos and gamma rays

Speaker: Dmitri Semikoz

Slides Transition_KarlsruheSept2015.pdf

4:30 PM Extragalactic Cosmic Rays in the Knee to Ankle Region

Speaker: Andrew Taylor

Slides Taylor-Karlsruhe_15.pdf

4:45 PM Cosmic Ray Physics with TeV Muons in Large Volume Detectors

Speaker: Tom Gaisser

Slides Berghaus-2.pdf

5:00 PM → 5:45 PM Discussions

5:45 PM → 7:15 PM Common Session with the Dark Matter Workshop

5:45 PM Transfer to KIT Campus South

6:30 PM Supernova Cosmology

Speaker: Reynald Pain

7:30 PM → 10:30 PM Common Dinner

Wednesday, September 23

9:00 AM → 10:30 AM Contributions

9:00 AM Composition models: what to expect from known cosmic accelerators

Speaker: Martin Pohl

Slides composition_MPohl.pdf

9:20 AM Galactic cosmic ray composition in the escape model

Speaker: Michael KACHELRIESS

Slides comp_kachelriess.pdf

9:40 AM Radio Xmax detection with LOFAR and AERA

Speaker: Jörg Hörandel

Slides jrh-radio.pdf

9:55 AM Radio simulations and future multi-hybrid measurements

Speaker: Frank Schröder

Slides FrankSchroeder_HAPcomposition2015.pdf

10:10 AM Mass composition using radio detection of EAS with SKA-low

Speaker: Anne Zilles

Slides HAPComposition_Zilles_SKA.pdf

10:30 AM → 11:00 AM Coffee

11:00 AM → 12:00 PM Summary reports

11:00 AM Summary Report: "Experiments"

Speaker: Mario Bertaina

Slides bertaina-summary-expresults.pdf

11:20 AM Summary Report: "Source and Propagation models"

Speaker: Paolo Lipari

Slides summary-lipari.pdf

11:40 AM Summary Report: "Hadronic & shower Models"

Speaker: Sergey Ostapchenko

Slides sims-summary.pdf

12:00 PM → 12:45 PM Discussions

12:45 PM → 2:00 PM Lunch

2:00 PM → 3:00 PM Workshop Summary & Closure

2:00 PM Overview over the current situation / Where to go from here?

Speaker: Tom Gaisser

Slides Gaisser-KIT.pdf

2:40 PM A common paper

Speaker: Johannes Knapp