BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Invited talk: Development of a spatial sensitive detector for posi tronium inertial sensing measurements DTSTART;VALUE=DATE-TIME:20220714T065500Z DTEND;VALUE=DATE-TIME:20220714T071500Z DTSTAMP;VALUE=DATE-TIME:20260720T195338Z UID:indico-contribution-51-695@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Sebastiano Mariazzi\; University of Trento\, Italy ( )\nAuthor:\nSebastiano Mariazzi\nCo-authors:\nRuggero Caravita\, Lisa Glö ggler\, Luca Povolo\, Luca Penasa\, Sushil Sharma\, Pawel Moskal\, Roberto Sennen Brusa\nRecent experiments have demonstrated the possibility to pro duce positronium in the long-lived 23S state (lifetime of 1142 ns) via 13S →33P [1] laser excitation followed by spontaneous [2\, 3] or stimulated [4] 33P→23S transition. This excitation scheme has shown to be suitable for the production of a monochromatic source of 23S positronium [3\,5].\nT he employment of such a source of 23S positronium has been proposed to per form the first force-sensitive inertial studies\, including gravity\, with a purely leptonic system [6]. In order to perform these studies\, three m ain steps are necessary: i) a monochromatic beam of 23S positronium has to be produced\, ii) the 23S beam has to cross a deflectometer/interferomete r device with consequent formation of the fringe pattern and iii) the disp lacement of the fringe pattern determined by an external force exerted on positronium has to be detected.\nIn this work\, the aforementioned steps a re presented. Particular attention will be dedicated to the description of the possible detection schemes that could be used for resolving the fring e pattern displacement. Recent results in the development of a spatial sen sitive detector for positronium are shown and the perspectives are discuss ed.\n\n[1] S. Aghion et al. (AEgIS Collaboration) Phys. Rev. A 94\, 012507 (2016)\n[2] S. Aghion et al. (AEgIS Collaboration) Phys. Rev. A 98\, 0134 02 (2018)\n[3] C. Amsler et al. (AEgIS Collaboration) Phys. Rev. A 99\, 03 3405 (2019)\n[4] M. Antonello et al. (AEgIS Collaboration) Phys. Rev. A 10 0\, 063414 (2019)\n[5] S. Mariazzi et al. (AEgIS Collaboration) Acta Phys. Pol. A 137\, 91 (2020)\n[6] S. Mariazzi et al. (AEgIS Collaboration) Euro p. Phys. J. D 74\, 79 (2020)\n\nhttps://indico.koza.if.uj.edu.pl/event/7/c ontributions/695/ LOCATION:Collegium Novodvorscianum URL:https://indico.koza.if.uj.edu.pl/event/7/contributions/695/ END:VEVENT BEGIN:VEVENT SUMMARY:Mirror Matter searches with the J-PET detector DTSTART;VALUE=DATE-TIME:20220714T071500Z DTEND;VALUE=DATE-TIME:20220714T073500Z DTSTAMP;VALUE=DATE-TIME:20260720T195338Z UID:indico-contribution-51-696@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Elena Perez del Rio\; Jagiellonian University\, Pola nd ()\nThe Positronium system\, a bound state of an electron and a positro n\, is suitable for testing the predictions of quantum electrodynamics (QE D)\, since its properties can be perturbatively calculated to high accurac y and\, unlike the hydrogen system\, is not affected by finite size or QCD effects at the current experimental precision level. Experiments searchin g for invisible decays of the Ps triplet state\, the ortho-Positronium (o- Ps)\, which mainly decays to three photons\, are being conducted\, since t hey are sensitive to new physics scenarios\, e.g. mirror matter\, milli-ch arged particles\, and extra space-time dimensions.\n\nThe particular case of Mirror Matter (MM) and its search with the J-PET setup is presented in this talk.\nMirror Matter was originally proposed to restore parity violat ion in weak interactions\, by introducing a new hidden mirror sector where parity is violated in the opposite way. This means that under certain spa tial inversion the particles transform into a parity reflected new mirror state. These mirror partners would interact with Standard Model (SM) parti cles via gravitation\, making them suitable candidates for Dark Matter. In the o-Ps system\, the photons from the decay would oscillate into their m irror partners\, leaving no signal in the detector. By performing a high p recision measurement of the o-Ps lifetime\, the accuracy of the present QE D calculations can be tested and a search for the invisible decays of the o-Ps conducted. A discrepancy with the expectation from theory could indic ate the presence of Physics Beyond the SM\, i.e. a signal for MM.\n\nThe p resented search is conducted with the novel total-body Positron-Electron T omography (PET) scanner at the Jagiellonian University. The J-PET is a lar ge and high precise medical imaging tool\, based on plastic scintillators. \n\nhttps://indico.koza.if.uj.edu.pl/event/7/contributions/696/ LOCATION:Collegium Novodvorscianum URL:https://indico.koza.if.uj.edu.pl/event/7/contributions/696/ END:VEVENT BEGIN:VEVENT SUMMARY:Precision tests of discrete symmetries in decays of positronium wi th the J-PET detector DTSTART;VALUE=DATE-TIME:20220714T073500Z DTEND;VALUE=DATE-TIME:20220714T075500Z DTSTAMP;VALUE=DATE-TIME:20260720T195338Z UID:indico-contribution-51-697@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Eryk Czerwiński\; Jagiellonian Unversity\, Poland ( )\nThe Jagiellonian PET (J-PET) detector is the only device which enables estimation of positronium spin axis together with determination of polariz ation of photons from positronium annihilation on the event-by-event basis . This allows to test angular correlations in the annihilations of the lig htest leptonic bound system and explore a new class of discrete symmetry o dd operators that were not investigated before. Such measurement is equiva lent to a search for possible violation of combined charge\, parity\, and time-reversal symmetries as yet another approach for a test of New Physics . Positronium\, a bound state of electron and positron\, as the lightest m atter-antimatter system and at the same time an eigenstate of the C and P operators is an unique probe in such endeavor. With first measurements dem onstrating such capabilities we are able to reach the precision of CPT and CP tests at permill level. In the talk we will describe experimental tech niques and recent results of discrete symmetries tests in the decays of po sitronium in a whole available phase-space.\n\nhttps://indico.koza.if.uj.e du.pl/event/7/contributions/697/ LOCATION:Collegium Novodvorscianum URL:https://indico.koza.if.uj.edu.pl/event/7/contributions/697/ END:VEVENT BEGIN:VEVENT SUMMARY:Key talk: Interaction of positron and positronium with gases in li quids and development of a new positron beam for advancing such fundamenta l studies DTSTART;VALUE=DATE-TIME:20220714T063000Z DTEND;VALUE=DATE-TIME:20220714T065500Z DTSTAMP;VALUE=DATE-TIME:20260720T195338Z UID:indico-contribution-51-694@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Farida Selim\; Bowling Green State University\, USA ()\nThrough the last decades positron and positronium annihilation have be en powerful tools for fundamental studies in physics\, chemistry\, and mat ter. Now the recent development of novel type of positron emission tomogra phy (PET) at the Jagiellonian University in Krakow stimulates great intere st to understand positron/positronium interactions with gases dissolved in liquids and urges new research avenues in positron/positronium science. I n this talk I will give an example of such research and describe the devel opment of a new beam to advance such fundamental studies of positron and p ositronium in a wide range of science. I will discuss how it can be used t o advance our understanding of positron and positronium physics related to medicine. Lastly\, future perspectives of positron and positronium applic ations in medical diagnostics and therapeutic will be given.\n\nhttps://in dico.koza.if.uj.edu.pl/event/7/contributions/694/ LOCATION:Collegium Novodvorscianum URL:https://indico.koza.if.uj.edu.pl/event/7/contributions/694/ END:VEVENT END:VCALENDAR