Speaker
Mr
Luca Venturelli
(Universita` di Brescia)
Description
Antihydrogen is the simplest atom made entirely of antimatter, consisting of an antiproton and a positron. The study of its matter counterpart, the hydrogen atom, has produced some of the most precise determinations of physical quantities. High precise measurements of antihydrogen will allow to achieve direct tests of the fundamental symmetries of Nature through the comparison with hydrogen. The ASACUSA Collaboration has recently succeeded in producing the first beam of cold antihydrogen atoms. Antihydrogen was formed in a cusp trap by overlapping a cloud of low energy antiprotons with a positron plasma. The peculiar magnetic configuration has permitted the formation of an antihydrogen beam: 80 antiatoms were detected around 3 m downstream of the production region in a field free region where high resolution spectroscopy
of the hyperfine structure of the ground state can be performed.
Primary author
Mr
Luca Venturelli
(Universita` di Brescia)
Co-authors
Mr
Aki Mohri
(Atomic Physics Laboratory, RIKEN)
B. Wünschek
(Stefan-Meyer-Institut für Subatomare Physik, ÖADW)
Mr
Balint Radics
(Atomic Physics Laboratory, RIKEN)
Ms
Chloe Malbrunot
(CERN)
Mr
Clemens Sauerzopf
(Stefan-Meyer-Institut für Subatomare Physik, ÖADW)
Mr
Daniel James Murtagh
(Atomic Physics Laboratory, RIKEN)
Mr
Eberhard Widmann
(Stefan-Meyer-Institut für Subatomare Physik, ÖADW)
Mr
Evandro Lodi-Rizzini
(Dipartimento di Ingegneria dell’Informazione, Universita` di Brescia)
H. Higaki
(Graduate School of Advanced Sciences of Matter, Hiroshima University)
Mr
Hiroki Nagahama
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Mr
Hiroyuki Torii
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Mr
Johann Zmeskal
(Stefan-Meyer-Institut für Subatomare Physik, ÖADW)
K. Suzuki
(Stefan-Meyer-Institut für Subatomare Physik, ÖADW)
Mr
Koji Michishio
(Department of Physics, Tokyo University of Science)
Mr
Marco Leali
(Dipartimento di Ingegneria dell’Informazione, Universita` di Brescia)
Mr
Martin Diermaier
(Stefan-Meyer-Institut für Subatomare Physik, ÖADW)
Ms
Miki Otsuka
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Ms
Minori Tajima
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Mr
Naofumi Kuroda
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Mr
Nicola Zurlo
(Dipartimento di Ingegneria dell’Informazione, Universita` di Brescia)
Mr
Oswald Massiczek
(Stefan-Meyer-Institut für Subatomare Physik, ÖADW)
S. Sakurai
(Graduate School of Advanced Sciences of Matter, Hiroshima University)
Mr
Simon Van Gorp
(Atomic Physics Laboratory, RIKEN)
Mr
Stefan Ulmer
(Ulmer Initiative Research Unit, RIKEN)
Mr
Takehiro Mizutani
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Mr
Valerio Mascagna
(Dipartimento di Ingegneria dell’Informazione, Universita` di Brescia)
Y. Nagashima
(Department of Physics, Tokyo University of Science)
Mr
Yasunori Yamazaki
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Mr
Yasuyuk Kanai
(Atomic Physics Laboratory, RIKEN)
Mr
Yasuyuki Matsuda
(Institute of Physics, Graduate School of Arts and Sciences, University of Tokyo)
Mr
Yugo Nagata
(Atomic Physics Laboratory, RIKEN)
