European Physical Journal C: Particles and Fields (Nov 2023)
Production of antihydrogen atoms by 6 keV antiprotons through a positronium cloud
- P. Adrich,
- P. Blumer,
- G. Caratsch,
- M. Chung,
- P. Cladé,
- P. Comini,
- P. Crivelli,
- O. Dalkarov,
- P. Debu,
- A. Douillet,
- D. Drapier,
- P. Froelich,
- N. Garroum,
- S. Guellati-Khelifa,
- J. Guyomard,
- P.-A. Hervieux,
- L. Hilico,
- P. Indelicato,
- S. Jonsell,
- J.-P. Karr,
- B. Kim,
- S. Kim,
- E.-S. Kim,
- Y. J. Ko,
- T. Kosinski,
- N. Kuroda,
- B. M. Latacz,
- B. Lee,
- H. Lee,
- J. Lee,
- E. Lim,
- L. Liszkay,
- D. Lunney,
- G. Manfredi,
- B. Mansoulié,
- M. Matusiak,
- V. Nesvizhevsky,
- F. Nez,
- S. Niang,
- B. Ohayon,
- K. Park,
- N. Paul,
- P. Pérez,
- C. Regenfus,
- S. Reynaud,
- C. Roumegou,
- J.-Y. Roussé,
- Y. Sacquin,
- G. Sadowski,
- J. Sarkisyan,
- M. Sato,
- F. Schmidt-Kaler,
- M. Staszczak,
- K. Szymczyk,
- T. A. Tanaka,
- B. Tuchming,
- B. Vallage,
- A. Voronin,
- D. P. van der Werf,
- A. Welker,
- D. Won,
- S. Wronka,
- Y. Yamazaki,
- K.-H. Yoo,
- P. Yzombard
Affiliations
- P. Adrich
- National Centre for Nuclear Research (NCBJ)
- P. Blumer
- Institute for Particle Physics and Astrophysics, ETH Zurich
- G. Caratsch
- Institute for Particle Physics and Astrophysics, ETH Zurich
- M. Chung
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST)
- P. Cladé
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- P. Comini
- IRFU, CEA, Université Paris-Saclay
- P. Crivelli
- Institute for Particle Physics and Astrophysics, ETH Zurich
- O. Dalkarov
- Affiliated with an Institute Covered by a Cooperation Agreement with CERN
- P. Debu
- IRFU, CEA, Université Paris-Saclay
- A. Douillet
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- D. Drapier
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- P. Froelich
- Department of Physics, Stockholm University
- N. Garroum
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- S. Guellati-Khelifa
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- J. Guyomard
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- P.-A. Hervieux
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504
- L. Hilico
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- P. Indelicato
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- S. Jonsell
- Department of Physics, Stockholm University
- J.-P. Karr
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- B. Kim
- Center for Underground Physics, Institute for Basic Science
- S. Kim
- Department of Physics and Astronomy, Seoul National University
- E.-S. Kim
- Department of Accelerator Science, Korea University Sejong Campus
- Y. J. Ko
- Center for Underground Physics, Institute for Basic Science
- T. Kosinski
- National Centre for Nuclear Research (NCBJ)
- N. Kuroda
- Institute of Physics, University of Tokyo
- B. M. Latacz
- IRFU, CEA, Université Paris-Saclay
- B. Lee
- Department of Physics and Astronomy, Seoul National University
- H. Lee
- Department of Physics and Astronomy, Seoul National University
- J. Lee
- Center for Underground Physics, Institute for Basic Science
- E. Lim
- Department of Accelerator Science, Korea University Sejong Campus
- L. Liszkay
- IRFU, CEA, Université Paris-Saclay
- D. Lunney
- Université Paris-Saclay, CNRS/IN2P3, IJCLab
- G. Manfredi
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504
- B. Mansoulié
- IRFU, CEA, Université Paris-Saclay
- M. Matusiak
- National Centre for Nuclear Research (NCBJ)
- V. Nesvizhevsky
- Institut Max von Laue-Paul Langevin (ILL)
- F. Nez
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- S. Niang
- Université Paris-Saclay, CNRS/IN2P3, IJCLab
- B. Ohayon
- Institute for Particle Physics and Astrophysics, ETH Zurich
- K. Park
- Center for Underground Physics, Institute for Basic Science
- N. Paul
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- P. Pérez
- IRFU, CEA, Université Paris-Saclay
- C. Regenfus
- Institute for Particle Physics and Astrophysics, ETH Zurich
- S. Reynaud
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- C. Roumegou
- Université Paris-Saclay, CNRS/IN2P3, IJCLab
- J.-Y. Roussé
- IRFU, CEA, Université Paris-Saclay
- Y. Sacquin
- IRFU, CEA, Université Paris-Saclay
- G. Sadowski
- IRFU, CEA, Université Paris-Saclay
- J. Sarkisyan
- Institute for Particle Physics and Astrophysics, ETH Zurich
- M. Sato
- Institute of Physics, University of Tokyo
- F. Schmidt-Kaler
- QUANTUM, Institut für Physik, Johannes Gutenberg Universität
- M. Staszczak
- National Centre for Nuclear Research (NCBJ)
- K. Szymczyk
- National Centre for Nuclear Research (NCBJ)
- T. A. Tanaka
- Institute of Physics, University of Tokyo
- B. Tuchming
- IRFU, CEA, Université Paris-Saclay
- B. Vallage
- IRFU, CEA, Université Paris-Saclay
- A. Voronin
- Affiliated with an Institute Covered by a Cooperation Agreement with CERN
- D. P. van der Werf
- Department of Physics, Faculty of Science and Engineering, Swansea University
- A. Welker
- CERN
- D. Won
- Department of Physics and Astronomy, Seoul National University
- S. Wronka
- National Centre for Nuclear Research (NCBJ)
- Y. Yamazaki
- Ulmer Fundamental Symmetries Laboratory, RIKEN
- K.-H. Yoo
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST)
- P. Yzombard
- Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Campus Pierre et Marie Curie
- DOI
- https://doi.org/10.1140/epjc/s10052-023-12137-y
- Journal volume & issue
-
Vol. 83,
no. 11
pp. 1 – 11
Abstract
Abstract We report on the first production of an antihydrogen beam by charge exchange of 6.1 keV antiprotons with a cloud of positronium in the GBAR experiment at CERN. The 100 keV antiproton beam delivered by the AD/ELENA facility was further decelerated with a pulsed drift tube. A 9 MeV electron beam from a linear accelerator produced a low energy positron beam. The positrons were accumulated in a set of two Penning–Malmberg traps. The positronium target cloud resulted from the conversion of the positrons extracted from the traps. The antiproton beam was steered onto this positronium cloud to produce the antiatoms. We observe an excess over background indicating antihydrogen production with a significance of 3–4 standard deviations.
