EPJ Web of Conferences (Jan 2023)
Pulsed Production of Antihydrogen in AEgIS
- Zurlo N.,
- Auzins M.,
- Bergmann B.,
- Bonomi G.,
- Brusa R.S.,
- Burian P.,
- Camper A.,
- Castelli F.,
- Ciury R.,
- Consolati G.,
- Doser M.,
- Farricker A.,
- Glöggler L.,
- Graczykowski Ł.,
- Grosbart M.,
- Guatieri F.,
- Gusakova N.,
- Haider S.,
- Huck S.,
- Janik M.,
- Kasprowicz G.,
- Khatri G.,
- Kłosowski Ł.,
- Kornakov G.,
- Krumins V.,
- Lappo L.,
- Linek A.,
- Malamant J.,
- Malbrunot C.,
- Mariazzi S.,
- Nowak L.,
- Nowicka D.,
- Oswald E.,
- Pagano D.,
- Penasa L.,
- Piwiński M.,
- Pospisil S.,
- Povolo L.,
- Prelz F.,
- Rangwala S.,
- Rienäcker B.,
- Røhne O.M.,
- Rotondi A.,
- Sandaker H.,
- Smolyanskiy P.,
- Sowiński T.,
- Tefelski D.,
- Testera G.,
- Volponi M.,
- Welsch C.P.,
- Wolz T.,
- Zawada M.,
- Zielinski J.
Affiliations
- Zurlo N.
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia
- Auzins M.
- University of Latvia, Department of Physics Raina boulevard 19
- Bergmann B.
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Bonomi G.
- INFN Pavia
- Brusa R.S.
- TIFPA/INFN Trento
- Burian P.
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Camper A.
- Department of Physics, University of Oslo
- Castelli F.
- Department of Physics, University of Milano
- Ciury R.
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun´
- Consolati G.
- Politecnico of Milano
- Doser M.
- Physics Department, CERN
- Farricker A.
- University of Liverpool, UK and The Cockcroft Institute
- Glöggler L.
- Physics Department, CERN
- Graczykowski Ł.
- Warsaw University of Technology, Faculty of Physics ul
- Grosbart M.
- Physics Department, CERN
- Guatieri F.
- Department of Physics, University of Trento
- Gusakova N.
- Physics Department, CERN
- Haider S.
- Physics Department, CERN
- Huck S.
- Physics Department, CERN
- Janik M.
- Warsaw University of Technology, Faculty of Physics ul
- Kasprowicz G.
- Warsaw University of Technology, Faculty of Physics ul
- Khatri G.
- Physics Department, CERN
- Kłosowski Ł.
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun´
- Kornakov G.
- Warsaw University of Technology, Faculty of Physics ul
- Krumins V.
- University of Latvia, Department of Physics Raina boulevard 19
- Lappo L.
- Warsaw University of Technology, Faculty of Physics ul
- Linek A.
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun´
- Malamant J.
- Department of Physics, University of Oslo
- Malbrunot C.
- Physics Department, CERN
- Mariazzi S.
- TIFPA/INFN Trento
- Nowak L.
- Physics Department, CERN
- Nowicka D.
- Warsaw University of Technology, Faculty of Physics ul
- Oswald E.
- Physics Department, CERN
- Pagano D.
- INFN Pavia
- Penasa L.
- TIFPA/INFN Trento
- Piwiński M.
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun´
- Pospisil S.
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Povolo L.
- TIFPA/INFN Trento
- Prelz F.
- INFN Milano
- Rangwala S.
- Raman Research Institute
- Rienäcker B.
- Physics Department, CERN
- Røhne O.M.
- Department of Physics, University of Oslo
- Rotondi A.
- INFN Pavia
- Sandaker H.
- Department of Physics, University of Oslo
- Smolyanskiy P.
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Sowiński T.
- Institute of Physics, Polish Academy of Sciences
- Tefelski D.
- Warsaw University of Technology, Faculty of Physics ul
- Testera G.
- INFN Genova
- Volponi M.
- Institute of Experimental and Applied Physics, Czech Technical University in Prague
- Welsch C.P.
- University of Liverpool, UK and The Cockcroft Institute
- Wolz T.
- Physics Department, CERN
- Zawada M.
- Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun´
- Zielinski J.
- Warsaw University of Technology, Faculty of Physics ul
- DOI
- https://doi.org/10.1051/epjconf/202329007001
- Journal volume & issue
-
Vol. 290
p. 07001
Abstract
Low-temperature antihydrogen atoms are an effective tool to probe the validity of the fundamental laws of Physics, for example the Weak Equivalence Principle (WEP) for antimatter, and -generally speaking- it is obvious that colder atoms will increase the level of precision. After the first production of cold antihydrogen in 2002 [1], experimental efforts have substantially progressed, with really competitive results already reached by adapting to cold antiatoms some well-known techniques pre- viously developed for ordinary atoms. Unfortunately, the number of antihydrogen atoms that can be produced in dedicated experiments is many orders of magnitude smaller than of hydrogen atoms, so the development of novel techniques to enhance the production of antihydrogen with well defined (and possibly controlled) conditions is essential to improve the sensitivity. We present here some experimental results achieved by the AEgIS Collaboration, based at the CERN AD (Antiproton Decelerator) on the production of antihydrogen in a pulsed mode where the production time of 90% of atoms is known with an uncertainty of ~ 250 ns [2]. The pulsed antihydrogen source is generated by the charge-exchange reaction between Rydberg positronium (Ps*) and an antiproton (p¯): p¯ + Ps* → H¯* + e−, where Ps* is produced via the implantation of a pulsed positron beam into a mesoporous silica target, and excited by two consecutive laser pulses, and antiprotons are trapped, cooled and manipulated in Penning-Malmberg traps. The pulsed production (which is a major milestone for AEgIS) makes it possible to select the antihydrogen axial temperature and opens the door for the tuning of the antihydrogen Rydberg states, their de-excitation by pulsed lasers and the manipulation through electric field gradients. In this paper, we present the results achieved by AEgIS in 2018, just before the Long Shutdown 2 (LS2), as well as some of the ongoing improvements to the system, aimed at exploiting the lower energy antiproton beam from ELENA [3].
