EXA-LEAP2024
26-30 August 2024
Austrian Academy of Sciences, Vienna.

EXA/LEAP 2024 is the joint event of the Exotic Atoms and Related Topics Conference (EXA) and the Low Energy Antiproton conference (LEAP). EXA is a series of conferences which started in 2002 and takes place every three years. Details of the previous events including the proceedings and other conference material can be found on the EXA website (https://www.oeaw.ac.at/smi/talks-and-events/exa/). LEAP is also organized regularly and was last held in 2018 (https://indico.cern.ch/event/657512/).

EXA/LEAP 2024 was organized by the Stefan Meyer Institute for Subatomic Physics of the Austrian Academy of Sciences and took place in Vienna, Austria from August 26th to 30th, 2024. The scientific program covered the topics:

   Hadron Physics with Antiprotons
   Physics with Antihydrogen: CPT and Gravity
   Exotic hadronic and leptonic Atoms
   Kaon-Nucleus Interaction and Strangeness in Nuclei
   Exotic Hadrons
   Antimatter in the Universe
   New Techniques, Instrumentation and Facilities

conference main image
Main session
Future Perspectives of AD-ELENA Facility at CERN
Pontecorvo Reactions
L. Venturelli and  on behalf of the ASACUSA collaboration
PUMA - Probing the surface of atomic nuclei with antiprotons
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F. Wienholtz
Searching for a dark matter particle with anti-protonic atoms
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G. Kornakov
Antiproton annihilation on nuclei
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A. Gligorova
Antimatter-Nucleus reactions with the Liège IntraNuclear Cascade (INCL) code
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J.C. David, D. Zharenov, O. Lourgo, J. Cugnon and J. Hirtz
Measurement of anti-3He nuclei absorption in matter and impact on their propagation in the Galaxy
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L. Serksnyte
Cosmic Antiparticles: Latest Results from the Alpha Magnetic Spectrometer on the International Space Station
Positron Annihilation in the Universe
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T. Siegert
Precision studies of ortho-positronium decay rate with J-PET
Precision laser spectroscopy of the Thorium-229 nuclear clock transition
Measurement of the C-forbidden $2\,^3$S$_1 \rightarrow 2\,^1$P$_1$ transition in positronium
Demonstration of one-dimensional chirp cooling of positronium to ultra-low temperatures
Prospects for Positronium Bose-Einstein Condensation
Antiprotonic helium
X-rays of muonic and antiprotonic atoms
Muonic helium hyperfine structure measurements at J-PARC MUSE
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P. Strasser, S. Fukumura, Y. Goto, K. Asai, M. Fushihara, T. Ino, S. Kanda, S. Kawamura, M. Kitaguchi, S. Nishimura, T. Oku, T. Okudaira, H.M. Shimizu, K. Shimomura, H. Tada and H.A. Torii
Physics with Antiprotons and Antihydrogen - Theory Overview
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R. Lehnert
Frequency metrology with antimatter
BASE - towards a 10-fold improved measurement of the antiproton magnetic moment
Best Practices for the Manufacture of Antimatter Atoms
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E. Hunter, M. Bumbar, C. Amsler, M. Bayo, H. Breuker, M. Cerwenka, G. Costantini, R. Ferragut, M. Giammarchi, A. Gligorova, G. Gosta, H. Higaki, C. Killian, V. Kraxberger, N. Kuroda, A. Lanz, M. Leali, G. Maero, C. Malbrunot, V. Mascagna, Y. Matsuda, S. Migliorati, D. Murtagh, A. Nanda, L. Nowak, M. Romé, R. Sheldon, M.C. Simon, M. Tajima, V. Toso, S. Ulmer, L. Venturelli, A. Weiser, E. Widmann and Y. Yamazaki
GBAR
ALPHA-G
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W. Bertsche
The AEgIS Experiment: Progress and Future Outlook
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R. Caravita, S. Alfaro Campos, M. Auzins, M. Berghold, B. Bergmann, P. Burian, R.S. Brusa, A. Camper, F. Castelli, G. Cerchiari, R. Ciurylo, A. Chehaimi, G. Consolati, M. Doser, K. Eliaszuk, R. Ferguson, M. Germann, A. Giszczak, L.T. Glöggler, L. Graczykowski, M. Grosbart, F. Guatieri, N. Gusakova, F.P. Gustafsson, S. Haider, S. Huck, C. Hugenschmidt, M. Janik, T. Januszek, G. Kasprowicz, K. Kempny, G. Khatri, L. Klosowski, G. Kornakov, V. Krumins, L. Lappo, A. Linek, S. Mariazzi, P. Moskal, M. Münster, P. Pandey, D. Pecak, L. Penasa, V. Petracek, M. Piwinski, S. Pospišil, F. Prelz, S.A. Rangwala, T. Rauschendorfer, B.S. Rawat, B. Rienacker, V. Rodin, O. Rohne, H. Sandaker, S. Sharma, P. Smolyanskiy, T. Sowiński, D. Tefelski, M. Volponi, C.P. Welsch, M. Zawada, J. Zielinski, N. Zurlo and  on behalf of the AEgIS Collaboration
Novel super-thermal exotic atom beam for the measurement of the gravitational acceleration of muonium
Lorentz Violation, CPT violation, and Spectroscopy Experiments
Test of CPT and Lorentz invariance with a cold Hbar-beam
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C. Malbrunot
Improved bounds on Lorentz violation from long-coherence Ramsey spectroscopy in Yb+
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L. Dreissen
En route to a CPT test based on anti-H$_2^+$: vibrational spectroscopy of a H$_2^+$ ensemble and nondestructive spectroscopy of a single HD$^+$ ion in a Penning trap
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S. Schiller
Prospect of hadronic-molecule with strangeness
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M. Iwasaki
Theory of kaon-nucleon interaction
SIDDHARTA 2 - first results
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F. Sgaramella
$\Lambda$ and $\Sigma$ potentials in neutron stars, hypernuclei, and heavy-ion collisions
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A. Jinno, K. Murase and Y. Nara
Cosmic anti-deuteron flux from exotic sources
Antiproton and antineutron formfactors @ BES3
Probing the size and binding energy of the hypertriton in heavy ion collisions
Hypertriton lifetime
Tetraquarks
J-PARC - future plans, hadron hall
PSI - future plans, extensions
The PANDA Experiment
Towards Lamb shift spectroscopy of antihydrogen atoms at the GBAR $\mathrm{\bar{H}}$ beam line
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T.A. Tanaka, P.P. Blumer, G. Janka, B. Ohayon, C. Regenfus, P. Crivelli, N. Kuroda,  on behalf of the GBAR collaboration, R. Tsukida, T. Higuchi and K.S. Tanaka
Towards a direct hydrogen-antihydrogen comparison
Synthesis of highly charged nuclear fragments in a Penning-Malmberg trap using antiprotons
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F. Gustafsson
Positronium Doppler laser cooling: results and perspectives
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A. Camper, S. Alfaro Campos, M. Auzins, M. Berghold, B. Bergmann, P. Burian, R.S. Brusa, R. Caravita, F. Castelli, G. Cerchiari, R. Ciuryło, A. Chehaimi, G. Consolati, M. Doser, K. Eliaszuk, R. Ferguson, M. Germann, A. Giszczak, L.T. Glöggler, Ł. Graczykowski, M. Grosbart, F. Guatieri, N. Gusakova, F.P. Gustafsson, S. Haider, S. Huck, C. Hugenschmidt, M. Janik, T. Januszek, G. Kasprowicz, K. Kempny, G. Khatri, Ł. Kłosowski, G. Kornakov, V. Krumins, L. Lappo, A. Linek, S. Mariazzi, P. Moskal, M. Münster, P. Pandey, D. Pecak, L. Penasa, V. Petracek, M. Piwinski, S. Pospišil, F. Prelz, S.A. Rangwala, T. Rauschendorfer, B.S. Rawat, B. Rienacker, V. Rodin, O. Røhne, H. Sandaker, S. Sharma, P. Smolyanskiy, T. Sowiński, D. Tefelski, M. Volponi, C.P. Welsch, M. Zawada, J. Zielinski, N. Zurlo and  on behalf of the AEgIS Collaboration
Development of a Pressurized Helium Scintillating Calorimeter for AntiMatter Identification.
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L.E. Ghezzer, G. Giovanazzi, F. Nozzoli, L. Ricci, F. Rossi, P. Spinnato, E. Verroi, P. Zuccon, F. Bruni and F. Meinardi
Precision Spectroscopy of Antiprotonic Atoms for Investigation of Low-energy Antinucleon-nucleus Interactions
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T. Higuchi and H. Fujioka
Chiral symmetry restoration deduced in precision spectroscopy of pionic atoms
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K. Itahashi
Spectroscopy of $\eta$'-mesic nuclei with 12C(p,dp) reaction at GSI/FAIR
Design and characterisation of an antiproton deceleration beamline for the PUMA experiment
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J. Fischer
Towards a transportable antiproton reservoir
An antiproton trap system using a drift tube accelerator and energy degrader
Cosmic $\overline{\textrm{d}}$ and $\overline{\textrm{He}}$: production mechanisms and latest constraints from ALICE at the LHC
G. Malfattore and  on behalf of the ALICE collaboration
Formation of light (anti)deuteron from a coalescence afterburner
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N. Jacazio
Hypernuclei Production through Antiprotonic Atoms
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M. Schlaich
Calculation of integration and disintegration processes of antihydrogen positive ions in collisions with positronium
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T. Yamashita
The LSym experiment: a CPT symmetry test in the leptonic sector
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M. Pasinetti
$\Lambda NN$ input to neutron stars from hypernuclear data
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E. Friedman and A. Gal
High-Resolution Spectroscopy of Muonic Lithium - First Steps and Prospects of the QUARTET Experiment
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K. Schoeler
Positron polarimetry with resonant microwave radiation
Antihydrogen annihilation detection: the ALPHA-g radial TPC
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A. Capra and  on behalf of the ALPHA collaboration
A New Technique to Measure the Axial and Transverse Energy of Trapped Antihydrogen Atoms during release from an Ioffe-Pritchard Magnetic Trap
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D. Hodgkinson
A Novel Low-Energy Ion Source: Production and Trapping of H- Ions for H/Hbar Comparison
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D. Silveira
First measurement of X-rays from resonance states of muonic deuterium molecule using a cryogenic detector
Perspectives of testing discrete symmetries and quantum entanglement in decays of positronium with the total-body J-PET scanner.
Laser spectroscopy of the ground-state hyperfine splitting in muonic hydrogen
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L. Affolter
High-sensitivity searches for matter-antimatter conversions at the European Spallation Source
Towards (anti)hydrogen fountains and interferometers with the HAICU project
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M. Fujiwara
Formation of hydrogen-like Highly Charged Ions using antiprotonic atoms as pathway systems
Panel discussion on future Physics at AD
The Lepton Symmetry Experiment: LSym
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S. Sasidharan
A new concept of $Mu-\overline{Mu}$ conversion search
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N. Kawamura
Towards laser cooling of negative molecular ions
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M. Germann
3D Simulation studies of mixed plasma confinement at AEgIS
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B.S. Rawat, N. Kumar, B. Rienacker, C.P. Welsch and  on behalf of the AEgIS Collaboration
The scintillating bar detector of the ASACUSA experiment
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V. Mascagna, C. Amsler, M. Bayo, H. Breuker, M. Bumbar, M. Cerwenka, G. Costantini, R. Ferragut, M. Giammarchi, A. Gligorova, G. Gosta, H. Higaki, E.D. Hunter, C. Killian, V. Kraxberger, N. Kuroda, M. Leali, G. Maero, C. Malbrunot, Y. Matsuda, S. Migliorati, D. Murtagh, A. Nanda, L. Nowak, M. Romé, M.C. Simon, M. Tajima, V. Toso, S. Ulmer, L. Venturelli, A. Weiser, E. Widmann and Y. Yamazaki
Production of exotic onium states and atoms in photon-photon collisions at hadron colliders
Interferometer for the LEMING experiment
Optical potential analysis of antiproton-nucleus data at low energy
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S. Migliorati, A. Bianconi, V. Mascagna and L. Venturelli
Experimental Investigation of QED Effects through Antiprotonic Atom X-ray spectroscopy: first test beams with TES detectors and solid targets
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Q. Senetaire
Prospects for forward emitted positronium from nanoporous membranes at AEgIS
B. Rienacker, S. Alfaro Campos, M. Auzins, M. Berghold, B. Bergmann, P. Burian, R.S. Brusa, A. Camper, R. Caravita, F. Castelli, G. Cerchiari, R. Ciuryło, A. Chehaimi, G. Consolati, M. Doser, K. Eliaszuk, R. Ferguson, M. Germann, A. Giszczak, L.T. Glöggler, Ł. Graczykowski, M. Grosbart, F. Guatieri, N. Gusakova, F. Gustafsson, S. Haider, S. Huck, C. Hugenschmidt, M.A. Janik, T. Januszek, G. Kasprowicz, K. Kempny, G. Khatri, Ł. Kłosowski, G. Kornakov, V. Krumins, L. Lappo, A. Linek, S. Mariazzi, P. Moskal, M. Münster, P. Pandey, D. Pecak, L. Penasa, V. Petracek, M. Piwinski, S. Pospišil, F. Prelz, S.A. Rangwala, T. Rauschendorfer, B.S. Rawat, V. Rodin, O. Røhne, H. Sandaker, S. Sharma, P. Smolyanskiy, T. Sowiński, D. Tefelski, M. Volponi, C.P. Welsch, M. Zawada, J. Zielinski, N. Zurlo and  on behalf of the AEgIS Collaboration
Detecting eV electrons at sub-kelvin temperatures for the LEMING experiment
Background Rejection for the ALPHA-g Anti-Hydrogen Detectors
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G. Smith and  on behalf of the ALPHA collaboration
Towards Precision Spectroscopy of Antiprotonic Atoms for Probing Strong-field QED
G. Baptista, S. Rathi, M. Roosa, Q. Senetaire, J. Sommerfeldt, T. Azuma, D. Becker, F. Butin, O. Eizenberg, J. Fowler, H. Fujioka, D. Gamba, N. Garroum, M. Guerra, T. Hashimoto, T. Higuchi, P. Indelicato, J. Machado, K. Morgan, F. Nez, J. Nobles, B. Ohayon, S. Okada, D. Schmidt, D. Swetz, J. Ullom, P. Yzombard, M. Zito and N. Paul
Estimating background for decays of positronium with J-PET using Machine Learning Algorithms
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P. Tanty, E. Perez del Rio, P. Moskal and  on behalf of the J-PET Collaboration
Analysis results of the search for neutron to mirror-neutron oscillations at PSI
Mirror Matter in Positronium Decay Searches with the J-PET Detector
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J. Medrala-Sowa, E. Perez del Rio and P. Moskal
Exploring the Polarization Correlation of Photons Emitted from Positron Annihilation in a Porous Medium
Prospects for improving the sensitivity of CPT symmetry test in positronium decays with J-PET
Antiproton-induced nuclear fragmentation
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J. Zielinski
Results from the Accelerators Validating Antimatter physics (AVA) network
Formation of moving exotic muonium atoms during channeling of antimuons in carbon nanotubes under external electromagnetic radiation
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N. Maksyuta
Design and developing status of the data acquisition and the slow control systems in the M2e experiment at Fermilab
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A. Gioiosa
Muonic atoms reveal the structure of deformed nuclei
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D. Jankovic
Prospects for a Cold Antideuteron Beam in AD/ELENA
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R. Caravita
A novel platform for antiprotonic atom research using Paul and Penning-Malmberg traps
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M. Grosbart
The ground state hyperfine splitting in muonic hydrogen (Hyper-mu) experiment at PSI
ltracold neutron sources for fundamental physics \u2014 status at TRIUMF and future prospects
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T. Higuchi
Towards a Rydberg Interferometer to test the Weak Equivalence Principle with Positronium
Rabi-oscillation spectroscopy : high precision time-domain analysis applied to muonium hyperfine resonance
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H.A. Torii, S. Nishimura, S. Kanda, P. Strasser, K. Shimomura and  on behalf of the MuSEUM collaboration
Towards g-factor measurements of (anti-)protons using techniques based on quantum logic spectroscopy
N. Poljakov, J. Schaper, J.A. Coenders, J.M. Cornejo, S. Ulmer and C. Ospelkaus
Lifetime measurements of light hypernuclei using K^- beam at J-PARC
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T. Hashimoto
Towards a Study of Low Energy Antiproton Annihilations on Nuclei
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V. Kraxberger, M. Bumbar, A. Gligorova, C. Amsler, M. Bayo, H. Breuker, M. Cerwenka, G. Costantini, R. Ferragut, M. Giammarchi, G. Gosta, H. Higaki, E. D. Hunter, C. Killian, N. Kuroda, M. Leali, G. Maero, C. Malbrunot, V. Mascagna, Y. Matsuda, S. Migliorati, D. Murtagh, A. Nanda, L. Nowak, M. Romé, M.C. Simon, M. Tajima, V. Toso, S. Ulmer, L. Venturelli, A. Weiser, E. Widmann and Y. Yamazaki
GRASIAN: Shaping and characterization of the cold hydrogen beam for the forthcoming first demonstration of gravitational quantum states of atoms
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C. Killian
On the formation of molecules containing positronium

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