Scientific Highlights Titel Datum Year Year201920182017201620152014201320122011201020092008 Month MonthJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember 14 September 2017 The hard worker from Val Mesolcina Matter and Material Research with muons Particle physics For Aldo Antognini, physics and conviviality are in the bloodPSI researcher Aldo Antognini has received more than 2.2 million Swiss francs from the EU for his latest experiment. He wants to find out how magnetism is distributed in the proton. The particle physicist will be able to apply not only his scientific and technical talents, but his social flair as well. 14 November 2016 The deuteron too poses a mystery The deuteron — one of the simplest atomic nuclei, consisting of just one proton and one neutron — is considerably smaller than previously thought. This finding was arrived at by an international research group that carried out experiments at the Paul Scherrer Institute, PSI. The new result is consistent with a 2010 study by the same group, in which the researchers measured the proton and found a significantly smaller value than previous research using different experimental methods. 23 August 2016 Search for the lepton flavour violating decay μ+→e+γ with the full dataset of the MEG experiment The final results of the search for the lepton flavour violating decay μ+→e+γ based on the full dataset collected by the MEG experiment at the Paul Scherrer Institut in the period 2009–2013 and totalling 7.5×1014 stopped muons on target are presented. 13 July 2016 Muon polarization in the MEG experiment: predictions and measurements The MEG experiment makes use of one of the world’s most intense low energy muon beams, in order to search for the lepton flavour violating process μ+→e+γ . We determined the residual beam polarization at the thin stopping target, by measuring the asymmetry of the angular distribution of Michel decay positrons as a function of energy. The initial muon beam polarization at the production is predicted to be Pμ=−1Pμ=−1 by the Standard Model (SM) with massless neutrinos. Sidebar Laboratory Laboratory for Particle Physics (LTP) Groups LTP Theory Group Crivellin Group High Energy Physics Group Muon Physics Group UCN Physics Group Electronics for Measuring Systems Group Detectors, Irradiation and Applied Particle Physics Group Vocational Training Homepage (in German) Facilities Proton Irraditation Facility (PIF) Ultra Cold Neutrons Source (UCN) Secondary Beamlines (SBL) Open Positions Job Opportunities at Research Division NUM. Particle Physics Events Overview Scientific Events at LTP. Contact Stefan Ritt Telephone: +41 56 310 37 28 E-mail: stefan.ritt@psi.ch Secretary Anita Van Loon Telephone: +41 56 310 32 54 E-mail: anita.vanloon@psi.ch
14 September 2017 The hard worker from Val Mesolcina Matter and Material Research with muons Particle physics For Aldo Antognini, physics and conviviality are in the bloodPSI researcher Aldo Antognini has received more than 2.2 million Swiss francs from the EU for his latest experiment. He wants to find out how magnetism is distributed in the proton. The particle physicist will be able to apply not only his scientific and technical talents, but his social flair as well.
14 November 2016 The deuteron too poses a mystery The deuteron — one of the simplest atomic nuclei, consisting of just one proton and one neutron — is considerably smaller than previously thought. This finding was arrived at by an international research group that carried out experiments at the Paul Scherrer Institute, PSI. The new result is consistent with a 2010 study by the same group, in which the researchers measured the proton and found a significantly smaller value than previous research using different experimental methods.
23 August 2016 Search for the lepton flavour violating decay μ+→e+γ with the full dataset of the MEG experiment The final results of the search for the lepton flavour violating decay μ+→e+γ based on the full dataset collected by the MEG experiment at the Paul Scherrer Institut in the period 2009–2013 and totalling 7.5×1014 stopped muons on target are presented.
13 July 2016 Muon polarization in the MEG experiment: predictions and measurements The MEG experiment makes use of one of the world’s most intense low energy muon beams, in order to search for the lepton flavour violating process μ+→e+γ . We determined the residual beam polarization at the thin stopping target, by measuring the asymmetry of the angular distribution of Michel decay positrons as a function of energy. The initial muon beam polarization at the production is predicted to be Pμ=−1Pμ=−1 by the Standard Model (SM) with massless neutrinos.
