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Atomic spectroscopy and collisions using slow antiprotons

R. Funakoshi, Kunihiro Suzuki, Christoph Scheidenberger, W R Thompson, H. Higaki, S.P. Møller, Toshio Hyodo, K. Kuroki, Ken-Ichiro Komaki, E. Widmann, B. Ketzer, A. Mohri, Yoichi Nakai, R. Dörner, J Merrisson, R W McCullough, R. Hoekstra, Jozsef S. Bakos, M. Iwasaki, N. Morita, Hitoshi Yamaguchi, Takahiro Kuga, N. Oshima, John Eades, H Tanuma, M. Hori, H. A. Torii, J. Ullrich, M. Kumakura, J. A. Slevin, M. Charlton, Masaru Kuroda, Toshiaki Ishikawa, Balazs Ujvari, Takao M Kojima, M. Fujiwara, M. Wada, H. Rothard, Toshiyuki Azuma, K. Yoshiki Franzén, H. Bluhme, D. Horváth, Bertalan Juhász, T. Kambara, T. Yamazaki, Helge V. Knudsen, Ulrik Mikkelsen, Erik Uggerhøj, Y. Yamazaki, Jun Sakaguchi, Toshiyasu Ichioka, H. Schmidt-Böcking

Published Oct 24, 1997• 10 citations
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Atomic collisions with ultra slow antiprotons

Y. Yamazaki

Recently, a new project, ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons), has started, which aims at studying collision dynamics with slow antiprotons and high precision spectroscopy of antiprotonic atoms. It is expected that the ultra slow monoenergetic antiproton beams will open a new physics regime relating to antimatter science under very well controlled conditions. In the present report, several research plans, which includes ionization, excitation, stopping power, channeling, antiprotonic atom formation, high resolution antiprotonic atom spectroscopy, etc. are discussed. The way to prepare ultra slow antiprotons is also presented.

AIP conference proceedings•Jan 1, 2000•0 citations

Trapping, cooling and extraction of antiprotons, and the ASACUSA project

Y. Yamazaki

Ultra slow mono-energetic antiproton beams are under preparation combining novel techniques to decelerate antiprotons with an RFQD (Radio Frequency Quadrupole Decelerator), to trap, cool, and compress in an electromagnetic trap, and finally to extract as an ultra slow mono-energetic beam. This unique beam will make it possible to study the ionization processes around adiabatic energy regions, channeling, stopping power, antiprotonic atom formation processes under single collision conditions, to prepare metastable antiprotonic atoms such as p̄p, p̄He+, p̄He++, p̄Li+ in vacuum, and to make high precision laser spectroscopy of them. This project named ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) is expected to open a new physics regime in antimatter science under well controlled conditions.

AIP conference proceedings•Jan 1, 1999•3 citations
Recently, a new project, ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons), has started, which aims at studying collision dynamics with slow antiprotons and high precision spectroscopy of antiprotonic atoms. It is expected that the ultra slow monoenergetic antiproton beams will open a new physics regime relating to antimatter science under very well controlled conditions. In the present report, several research plans, which includes ionization, excitation, stopping power, channeling, antiprotonic atom formation, high resolution antiprotonic atom spectroscopy, etc. are discussed. The way to prepare ultra slow antiprotons is also presented.
Ultra slow mono-energetic antiproton beams are under preparation combining novel techniques to decelerate antiprotons with an RFQD (Radio Frequency Quadrupole Decelerator), to trap, cool, and compress in an electromagnetic trap, and finally to extract as an ultra slow mono-energetic beam. This unique beam will make it possible to study the ionization processes around adiabatic energy regions, channeling, stopping power, antiprotonic atom formation processes under single collision conditions, to prepare metastable antiprotonic atoms such as p̄p, p̄He+, p̄He++, p̄Li+ in vacuum, and to make high precision laser spectroscopy of them. This project named ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) is expected to open a new physics regime in antimatter science under well controlled conditions.