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R-ECFA Meeting, Wissenschaftszentrum, , May 9, 2014

Astrophysics Cosmology Astroparticle Physics in Astro- Cosmic Rays particle High Energy Gamma Rays Physics Ultra High Energy Mass Summary

Christian Weinheimer – University of Münster Chair Committee for Astroparticle Physics in Germany KAT 1 APP in Germany: Universities

Hamburg • 28 universities with about ´ 90 professors, Hannover HU fully or partly devoted to Münster Fulda APP • Still growing field with new Wuppertal professorships, Köln e.g. recently at , Bonn and Potsdam

Mainz Würzburg • Large fraction of Young Investigator Erlangen Groups

Tübingen TU München Freiburg LU München

2 APP in Germany: Max Planck Institutes & Research Centers DESY, of the Helmholtz DESY, Zeuthen Association MPI AEI Hannover MPI AEI Potsdam/Golm

FZD Rossendorf MPIfR Bonn

GSI Darmstadt

MPIK Heidelberg KIT Karlsruhe

MPIs München/Garching (MPA, MPE, MPP) • 2 (4) Research Centers of the Helmholtz Associtiation • 4 (6) Max Planck Institutes

3 Astroparticle Physics in Germany: Topics

• Cosmic rays (Pierre Auger Observatory, ..) typically • High energy gamma rays large area p dma (H.E.S.S., MAGIC, CTA) roa ground-based ean • Ultra-high energy neutrinos urop ess telescopes E proc (IceCube, ANTARES, KM3NeT) • Low energy neutrinos (BOREXINO, JUNO) • Neutrino Mass typically (ECHo, GERDA, KATRIN, …) in underground • Direct dark matter search laboratories to (CRESST, EDELWEISS, shield cosmic rays ns atio EURECA, XENON, DARWIN) end mm ttee • Nuclear Astrophysics eco omi R e C icle of th part • Gravitational waves tro T r As KA fo sics • and theory in all these topics ... Phy

4 Astroparticle Physics in Germany: Topics

• Cosmic rays (Pierre Auger Observatory, ..) typically • High energy gamma rays large area p dma (H.E.S.S., MAGIC, CTA) roa ground-based ean • Ultra-high energy neutrinos urop ess telescopes E proc (IceCube, ANTARES, KM3NeT) • Low energy neutrinos (BOREXINO, JUNO) see S. Schönert's talk • Neutrino Mass typically (ECHo, GERDA, KATRIN,see … )S. Schönert'sin underground talk • Direct dark matter search laboratories to (CRESST, EDELWEISS, shield cosmic rays ns atio EURECA, XENON, DARWIN) end mm ttee • Nuclear Astrophysics eco omi R e C icle of th part • Gravitational waves tro T r As KA fo sics • and theory in all these topics ... Phy

5 Astroparticle Physics in Germany: Topics

• Cosmic rays (Pierre Auger Observatory, ..) typically • High energy gamma rays large area p dma (H.E.S.S., MAGIC, CTA) roa ground-based ean • Ultra-high energy neutrinos urop ess telescopes E proc (IceCube, ANTARES, KM3NeT) • Low energy neutrinos (BOREXINO, JUNO) • Neutrino Mass typically (ECHo, GERDA, KATRIN, …) in underground • Direct dark matter search laboratories to (CRESST, EDELWEISS, shield cosmic rays ns atio EURECA, XENON, DARWIN) end Germany is involved mm ttee • Nuclear Astrophysics eco omi R e C icle in all major topics of th part • Gravitational waves tro T r As KA of Astroparticle Physics fo sics • and theory in all these topics ... Phy in a (co-)leading role

6 Cosmic accelerator e.g. active galactic nucleus AGN

Source W. Hofmann/MPIK

Germany: Aachen, Hamburg, Karlsruhe, Siegen, Wuppertal

Karl-Heinz Kampert – Pierre Auger Collaboration 8 Auger: some key results

Karl-Heinz Kampert – Pierre Auger Collaboration 9 Plans for the Auger upgrade

Karl-Heinz Kampert – Pierre Auger Collaboration 10 Other cosmic ray projects

AMS II on ISS

TUNKA

JEM-EUSO

Karl-Heinz Kampert 11 High Energy Gamma Rays: H.E.S.S., MAGIC H.E.S.S.: galaktic plane in TeV gamma emission

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→ many new TeV gamma source discovered Source: H.E.S.S. Collaboration, arXiv:0907.0768 H.E.S.S. II adding a new very large telescope

H.E.S.S. II: 28m diameter mirror Cherenkov telescope

coincident observation

Source: Christian Stegmann, H.E.S.S. Collaboration The world future of TeV gamma astronomy: CTA

H.E.S.S. sources → gamma astronomy CTA prototype

Cherenkov Telescope Array CTA CTA is on the Research Infrastructure Roadmap of the German ministery BMBF !

German groups in CTA: Universität Hamburg Deutsches Elektronen-Synchrotron Humboldt University Berlin Max-Planck-Institut für Kernphysik TU Dortmund University Max-Planck-Institut für Physik -Universität Bochum Universität Würzburg Universität Potsdam Universität Heidelberg Universität Erlangen-Nürnberg Universität Tübingen

Cherenkov Telescope Array CTA

Werner Hofmann - CTA It is more like an observatory not an experiment For the first time in this field: open access ! Ultra-high energy neutrinos at the south pole e b u C e c I

- i n o c s e R

a s i l E

Elisa Resconi - IceCube

DecaCube e b u C e c I

- i n o c s e R

a s i l E

, phased approach

German groups: ANTARES: Erlangen KM3NeT: Erlangen, Tübingen, Würzburg Uli Katz – ANTARES, KM3NeT 20 Understanding the dark universe and the foundations of particle physics

21 Direct search for dark matter: cryogenic bolometers

Klaus Eitel – EDELWEISS, EURECA German Groups in EURECA: Karlsruhe (KIT), TU Munich,Tübingen, Max Planck Institute for Physics

Klaus Eitel – EDELWEISS, EURECA

Klaus Eitel – EDELWEISS, EURECA Dark matter seach: liquid noble gas detectors XENON100 @ LNGS

LNGS: 1.4km rock overburden (3700 mwe)

passive shield: H20, lead, polyethylene, copper 62 kg active dual phase Xenon target

German groups in XENON100/XENON1T: Max Planck Institute for Nuclear Physics, Heidelberg University of , University of Münster E. Aprile et al., Astropart. Phys. 35 (2012) 573 XENON100: recent limits from direct WIMP searches

E. Aprile et al., Phys. Rev. Lett. 109 (2012) 181301

E. Aprile et al., Phys. Rev. Lett. 111 (2013) 021301 XENON1T at LNGS • 100 times more sensitive than XENON100 -> world leading dark matter experiment • 1 m drift TPC with 2.4 ton (1 ton fiducial) LXe • 10 m water shield as Cherenkov Veto • 100 x less background than XENON100 • Approved by INFN for installation at LNGS • Fully funded October 2013 • construction is fully running in LNGS Hall B • Science Data projected to start in 2015 • Sensitivity: 2 x 10-47 cm2 after 2 years of data

Far future: DARWIN (mainly European-initialized experiment): Dark Matter experiment down to the ultimate limit (10-49 cm2 limited by solar and atmosph. neutrinos)

Direct neutrino mass determination: the KATRIN experiment

m(νe) sensitivity: 200 meV

detector t 70 m trometer Repor main spec Design TRIN 7090) KA t FZKA pre Repor ientific pectro- c s 1 S tention re 0 aseous meter less g m window rce system tritium sou molecular

German groups in KATRIN: Karlsruhe KIT, Bonn, Fulda, Mainz, MPIK Heidelberg, Münster, Wuppertal KATRIN: commissioning of spectrometer & detector

Timeline: 2014/2015: finish source & transport section 2016: start tritium data taking

The KATRIN 148-pixel detector is smiling

when being hit by from 11 subsequent positions of the scanning photoelectron source Conclusions

• Astroparticle physics is a very lively and growing field in Germany • Strong scientific and methodic links to particle and nuclear physics, particularly to non-accelerator particle physics • German groups are in (co-)leading roles in all major topics of astroparticle physics • More diverse field than particle physics, not located around one huge facility like CERN → some problems in funding • Community building: Helmholtz Alliance for Astroparticle Physics HAP • Future projects (see also talk by S. Schönert): - cosmic rays: Auger upgrade - high energy gamma rays: CTA (major German APP project in the future) - ultra-high energy neutrinos: PINGU? (mass hierarchy), DecaCube?, KM3NeT? - dark matter: XENON1T, EURECA (with SuperCDMS?) - neutrino properties: GERDA phase II, KATRIN (both funded, starting soon) • Funding: federal ministery BMBF (Verbundforschung: 18 MEuro for 2011-2014, 2014-2017?), Helmholtz Association, Max Planck Society MPG, German Science Foundation DFG, various universities (state budget) 30