Speaker
Mr
Francesco Guatieri
(TIFPA - INFN)
Description
The validity of the Weak Equivalence Principle (WEP) as predicted by General Relativity has been tested up to astounding precision using ordinary matter. The lack hitherto of a stable source of a probe being at the same time electrically neutral, cold and stable enough to be measured has prevented high-accuracy testing of the WEP on anti-matter.
The AEgIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) experiment located at CERN's AD (Antiproton Decelerator) facility aims at producing such a probe in the form of a pulsed beam of cold anti-hydrogen, and at measuring by means of a moiré deflectometer the gravitational force that Earth's mass exerts on it.
Low temperature and abundance of the \bar H are paramount to attain a high precision measurement. A technique employing a charge-exchange reaction between antiprotons coming from the AD and excited positronium atoms is being developed at AEgIS and will be presented in the talk, alongside an overview of the experimental apparatus and the current status of the experiment.
Primary authors
Alban Kellerbauer
(Max Planck Institute for Nuclear Physics)
Alberto Rotondi
(Istituto Nazionale di Fisica Nucleare Sezione di Pavia(INFN-Pavia))
Alexander Hinterberger
(CERN)
Andrea Demetrio
(Heidelberg University)
Dr
Andrea Fontana
(INFN Pavia)
Angela Gligorova
(University of Bergen)
Benjamin Rienaecker
(CERN)
Dr
Chloé Malbrunot
(CERN)
Mr
Christian Zimmer
(CERN)
Prof.
Claude Amsler
(Albert Einstein Center, Uni Bern)
Craig Evans
(Politecnico of Milano, INFN Milano)
Daniel Comparat
(Universite Paris-Sud)
Daniel Krasnicky
(University of Genova, INFN Genova)
Davide Pagano
(University of Brescia, INFN Pavia)
Prof.
Eberhard Widmann
(Stefan Meyer Institute)
Fabrizio Castelli
(INFN of Milan, University of Milan)
Fiodor Sorrentino
(University of Genova, INFN Genova)
Mr
Francesco Guatieri
(TIFPA - INFN)
Francesco Prelz
(INFN Milano)
Ms
Gemma Testera
(INFN)
Germano Bonomi
(University of Brescia, INFN Pavia)
Giammarchi Marco
(INFN Milan)
Giancarlo Nebbia
(INFN Padova)
Mr
Giovanni Cerchiari
(Max-Planck-Institut für Kernphysik)
Heidi Sandaker
(University of Oslo)
Helga Holmestad
(University of Oslo)
Ingmari Christa Tietje
(CERN)
Jacques Robert
(Universite Paris-Sud)
Dr
Johann Marton
(Österreichische Akademie der Wissenschaften(ÖAW))
Johann Zmeskal
(SMI)
Julian Fesel
(CERN)
Lea Di Noto
(University of Genova, INFN Genova)
Lillian Smestad
(CERN, Research Council of Norway)
Luca Penasa
(University of Trento, TIFPA/INFN Trento)
Luca Ravelli
(TIFPA/INFN Trento)
Marco Prevedelli
(University of Bologna)
Markus Oberthaler
(Heidelberg University)
Martin Simon
(Austrian Academy of Sciences)
Massimo Caccia
(INFN of Milan, University of Insubria)
Michele Sacerdoti
(INFN Milano, University of Milan)
Nicola Pacifico
(University of Bergen)
Mr
Nicola Zurlo
(Università degli Studi di Brescia)
Ole Myren Røhne
(University of Oslo)
Olga Khalidova
(CERN)
Patrice Lebrun
(CNRS/IN2p3)
Patrick Nedelec
(CNRS/IN2p3)
Pauline Yzombard
(Universite Paris-Sud)
Pierre Lansonneur
(CNRS/IN2p3)
Rafael Ferragut
(Politecnico of Milano, INFN Milan)
Roberto Sennen Brusa
(University of Trento, TIFPA/INFN Trento)
Romualdo Santoro
(INFN Milano, University of Insubria)
Ruggero Caravita
(Universty of Genova, INFN Genova)
Dr
Sebastian Gerber
(CERN Fellow)
Sebastiano Mariazzi
(Austrian Academy of Sciences)
Simon Müller
(Heidelberg University)
Stefan Haider
(CERN)
Stefano Aghion
(Politecnico of Milano, INFN Milano)
Viktor Matveev
(Russian Academy of Science, INFN Padova)
Vittorio Lagomarsino
(University of Genova, INFN Genova)
Vojtech Petracek
(Czech Technical University)
Zeudi Mazzotta
(INFN Milano, University of Milan)
giovanni consolati
(Politecnico of Milano, INFN Milan)
michael doser
(cern)
