IMPACTS In-Medium Properties of Antikaons and Charm Topical Studies WP3 Johann Marton HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Outline Participants Objectives Workpackages, selected topics Role of participants Deliverables Expected impact Financial contribution Summary HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Participants HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Participants 15 participating institutions, 10 from 5 EU countries: Austria, Czech Republic, Germany, Italy, Poland HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Objectives Definition and coordination of studies on strong interaction of hadrons containing strangeness or charm in experiments and theory Networking for improving our understanding the low- energy strong interaction beyond up/down quarks Basis in Europe with outreach to groups outside Europe – strong impact on world-wide strategy, i.e. activities of Japanese groups, participation of European groups in research in Japan (e.g. J-PARC), participation of Japanese groups in research in Europe (e.g. DAFNE) HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 6 Work packages WP1-WP6 WPs characterized by joint endeavor of experimentalists and theoreticians Theoretical and experimental studies on the strong interaction with strangeness Role of strangeness in compact stars The antikaon in the nuclear medium and the nature of sub-threshold resonances From strangeness to charm in-medium studies Bound few- nucleon systems Dissemination and Outreach HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 WP1 – Theoretical and experimental studies on the strong interaction with strangeness Kaonic deuterium (K-d) x-ray spectroscopy – first data on hadronic shift/width With these data extraction of the isospin scattering lengths New measurements with ultrahigh-energy-resolution detectors HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Kaonic deuterium 1st measurement of hadronic 1s state shift/width Kaonic deuterium @J-PARC ? Kaon beam Kaons at higher momentum (660-1000 MeV/c) needs degrader Tracking With 30 kW beam power 430 107 K- per day 0.03% per kaon pair stopping in gas (660 MeV/c) >300 SDDs SIDDHARTA2 @DAFNE DAFNE – ideal for kaonic atoms Kaon source (Φ decay in K-K+) Low-energy kaons (127 MeV/c) ideal for stopping No tracking With 10 pb-1 per day 1.5 107 K- per day isotropically 2% stopping in gas per kaon pair 144 SDDs from SIDDHARTA HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 M. Mai/Bonn HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 New experiments - microcalorimeter Study of 2 transitions in the same kaonic atom for separating one-nucleon 1N) from multi-nucleon (mN) processes using micro-calorimeters Further applications of microcalorimeters for precision x-ray studies: K-He-3,4 2p-shift/width Kaon mass HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 WP2- The antikaon in the nuclear medium and the nature of sub-threshold resonances New studies on sub-threshold resonances (e.g. Λ(1405) New experiments on strangeness production in pion-induced reactions HPH Meeting, Bochum March 26, 2014

WP2: Properties of hadronic resonances in theory and experiment Λ(1405) one- or two-pole object?? PDG, Phys. Rev. D86 (2012) T. Hyodo, D. Jido, Prog. Part. Nucl. Phys. 67 (2012) 55-98 HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Studies at LNF Unique possibilities at DAFNE/LNF employing a mono-energetic source of K- (@ low energy!) from Φ-meson decay AMADEUS/KLOE as a laboratory to study the nature of Λ(1405) and K- one and two nucleon absorption reactions; studies of charged and neutral decay products Pre-AMADEUS: Analysis of experimental data from KLOE (K- reactions in the drift chamber) In the coming 3 years: dedicated AMADEUS HPH Meeting, Bochum March 26, 2014

Pion-induced reactions (HADES) HADES at GSI Pion beam at GSI: ≈106 particles/s Using liquid target (π-+p  ΛK, ΣK, Φn) Measurement of the elementary production cross section Systematic study of possible appearance of resonances PWA methods will be used Using solid targets of different materials: Production of kaons, antikaons, Λ,Φ In-medium properties of these hadrons in cold nuclear matter Antikaon absorption – also related to antikaon absorption studies within KLOE/AMADEUS HPH Meeting, Bochum March 26, 2014

WP3 – Bound few-nucleon systems New studies on kaonic quasi-bound nuclear systems in experiment and theory New analysis methods for kaonic nuclear bound state search HPH Meeting, Bochum March 26, 2014

Quasi-bound kaonic nuclei ? Decay widths and binding energies from experiment and theory: The present knowledge from experiment and theory is still insufficient to make a clear statement about quasi-bound kaonic nuclear systems Experiments, refined data analysis and theoretical studies are needed HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014

Multi-kaonic quasi bound states (T. Yamazaki)? Controversially discussed? A. Gal et al. A. Gal, et al., arXiv: 1402.3778v1 (2014) HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014

In-medium studies of antikaons and eta‘s A. Gal et al. Sub-threshold meson-baryon dynamics can be demonstrated in bound state calculations within in-medium models of antikaon-nucleon and eta-nucleon interactions. Sub-threshold energies probed In kaonic atoms of Ni and Pb as function of nuclear density. This energy region is expected to be dominated by the Λ(1405) resonance. A. Gal, et al., arXiv: 1402.3778v1 (2014) HPH Meeting, Bochum March 26, 2014

Studies on the binding energy and width of Kbar nuclear states J. Mares et al. Studies on the binding energy and width of Kbar nuclear states A. Gal, et al., arXiv: 1402.3778v1 (2014) HPH Meeting, Bochum March 26, 2014

Studies on the binding energy of eta nuclear states j. Mares et al. Studies on the binding energy of eta nuclear states A. Gal, et al., arXiv: 1402.3778v1 (2014) HPH Meeting, Bochum March 26, 2014

Experiments on η‘ bound states in the nuclear medium K. Suzuki et al. Experiments on η‘ bound states in the nuclear medium HPH Meeting, Bochum March 26, 2014

WP4 - Role of strangeness in compact stars A. Schmitt/TU Wien HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014

WP5 – From strangeness to charm in-medium studies A. Gillitzer/Jülich Perspectives of antiproton-nucleus reactions in PANDA HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Nuclear bound states of charmed hadrons? HPH Meeting, Bochum March 26, 2014

WP6 – Dissemination and Outreach IMPACTS Meetings approx. 1 meeting/y at different venues Meetings at ECT* Outreach in „Science Night“ etc.  Schools of Physics (schools in 2-3 years period) Topical conferences like EXA2017 Network Webpage Video presentation HPH Meeting, Bochum March 26, 2014

Role of participants in the WPs HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Expected Impact For science Understanding of one of the fundamental interactions (strong interaction) with strange/charm quark Refine the theory and experimental techniques For industry and business Detector technology for medicine, material sciences. E.g. SiPMs for nuclear imaging (TOF-PET) For society Improvement of skills of young people in technology, computing and collaborative work Medical detector applications HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Deliverables HPH Meeting, Bochum March 26, 2014

Financial Contribution HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Summary The activities of the IMPACTS network are concentrated on developing new strategies in experimental and theoretical studies, to attack the open problems in the field of in-medium properties of hadrons with strangeness/charm. Inherently connected are the developments of new experimental methods and techniques - they can profit from this coordinated network (interconnections to JRAs). The basis of the networking activities are European infrastructures (FAIR, LNF/INFN, GSI, ECT*) but IMPACTS has a substantial involvement of a major hadron physics research facility (J-PARC) in Japan. Thus, it contributes to strengthening the partnership between European and non-European institutes. Extremely important is the impact on the society in the context of a broad range education of young researchers since IMPACTS is focused on modern physics in the transient range between nuclear and particle physics with partly involving atomic physics. HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Spare HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Risk Assessment HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 GANT Chart HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014

Motivation for K-d measurement SIDDHARTA – most important result on K-p by x-ray spectroscopy of atomic transitions to 1s SIDDHARTA – First exploratory experiment on K-d hadronic shift and width of 1s state – no experimental data up-to-now! New SDD x-ray detectors  connection to JRA Study of K-n interaction Isospin-dependent scattering lengths from KH and KD K-p interaction at low energy is well understood, but K-d provide the missing information Important information for theory Electromagnetic cascade Isospin Scattering length (combined with K-p data and theory) Probing the recent theoretical expectations M. Bazzi et al. [SIDDHARTA], Physics Letters B 704 (2011) 113–117 HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014

X-ray microcalorimeter a thermal detector measuring the energy of an incident x-ray photon as a temperature rise Temperature rise = E / C ( ~ 1 mK ) Decay time constant = C / G ( ~ 100 μs ) Absorber with larger “Z” (to stop the high energy x-rays) e.g., Absorber : Au (0.3 mm×0.3 mm wide, 300 nm thick) Thermometer : thin bilayer film of Ti (40nm) and Au(110 nm) HPH Meeting, Bochum March 26, 2014

Simple simulation K-4He by H. Tatsuno w/ GEANT4 Top view K-4He x-rays from Liq. 4He TES : 5eV FWHM (Bi 20 mm2, 5 um thick) Silicon Drift Detector(SDD) : 190 eV FWHM (Si 100 mm2, 400um thick) TES 6cm K- beam Compton scattered X-rays Liq. He (~ 0.1 L) well separated from “Compton scattered X-rays” and “Fe Ka energy”. Both have been serious problems in the prev. experiments. Fe Kα (e.g., due to Fe material contamination) HPH Meeting, Bochum March 26, 2014

KLOE data analysis - Pre-AMADEUS HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 Λ(1405) in pion reaction HADES @ GSI HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 DISTO Comparison pp reaction at 2.85 GeV and 2.50 GeV DISTO: New analysis work is planned: full acceptance and efficiency corrections PWA? HPH Meeting, Bochum March 26, 2014

HPH Meeting, Bochum March 26, 2014 P. Bühler/SMI HPH Meeting, Bochum March 26, 2014

Multinucleon components in the KbarN in-medium amplitudes In-Medium amplitude F as a function of density for kaonic nickel. “full” kaonic-atom globally fitted amplitude “1N” amplitude in the absence of many-nucleon contributions. A. Gal, et al., arXiv: 1402.3778v1 (2014) HPH Meeting, Bochum March 26, 2014