Physics Letters B (Dec 2016)
First measurement of isoscalar giant resonances in a stored-beam experiment
- J.C. Zamora,
- T. Aumann,
- S. Bagchi,
- S. Bönig,
- M. Csatlós,
- I. Dillmann,
- C. Dimopoulou,
- P. Egelhof,
- V. Eremin,
- T. Furuno,
- H. Geissel,
- R. Gernhäuser,
- M.N. Harakeh,
- A.-L. Hartig,
- S. Ilieva,
- N. Kalantar-Nayestanaki,
- O. Kiselev,
- H. Kollmus,
- C. Kozhuharov,
- A. Krasznahorkay,
- Th. Kröll,
- M. Kuilman,
- S. Litvinov,
- Yu.A. Litvinov,
- M. Mahjour-Shafiei,
- M. Mutterer,
- D. Nagae,
- M.A. Najafi,
- C. Nociforo,
- F. Nolden,
- U. Popp,
- C. Rigollet,
- S. Roy,
- C. Scheidenberger,
- M. von Schmid,
- M. Steck,
- B. Streicher,
- L. Stuhl,
- M. Thürauf,
- T. Uesaka,
- H. Weick,
- J.S. Winfield,
- D. Winters,
- P.J. Woods,
- T. Yamaguchi,
- K. Yue,
- J. Zenihiro
Affiliations
- J.C. Zamora
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany; Corresponding author.
- T. Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- S. Bagchi
- KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- S. Bönig
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- M. Csatlós
- ATOMKI, Institute of Nuclear Research, Hungarian Academy of Sciences, 4026 Debrecen, Hungary
- I. Dillmann
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- C. Dimopoulou
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- P. Egelhof
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- V. Eremin
- Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia
- T. Furuno
- Division of Physics and Astronomy, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
- H. Geissel
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- R. Gernhäuser
- Physik-Department E12, Technische Universität München, 85748 Garching, Germany
- M.N. Harakeh
- KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands
- A.-L. Hartig
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- S. Ilieva
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- N. Kalantar-Nayestanaki
- KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands
- O. Kiselev
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- H. Kollmus
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- C. Kozhuharov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- A. Krasznahorkay
- ATOMKI, Institute of Nuclear Research, Hungarian Academy of Sciences, 4026 Debrecen, Hungary
- Th. Kröll
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- M. Kuilman
- KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands
- S. Litvinov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Yu.A. Litvinov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- M. Mahjour-Shafiei
- Department of Physics, University of Tehran, P.O. Box 14395/547, Tehran, Iran; KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands
- M. Mutterer
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- D. Nagae
- Department of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
- M.A. Najafi
- KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands
- C. Nociforo
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- F. Nolden
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- U. Popp
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- C. Rigollet
- KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands
- S. Roy
- KVI-CART, University of Groningen, 9747 AA Groningen, The Netherlands
- C. Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- M. von Schmid
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- M. Steck
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- B. Streicher
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- L. Stuhl
- ATOMKI, Institute of Nuclear Research, Hungarian Academy of Sciences, 4026 Debrecen, Hungary
- M. Thürauf
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
- T. Uesaka
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- H. Weick
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- J.S. Winfield
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- D. Winters
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- P.J. Woods
- Institute for Particle and Nuclear Physics, University of Edinburgh, Edinburgh, EH9 3JZ, United Kingdom
- T. Yamaguchi
- Department of Physics, Saitama University, Saitama, Saitama 338-8570, Japan
- K. Yue
- Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany; Institute of Modern Physics, Chinese Academy of Sciences, 730000 Lanzhou, China
- J. Zenihiro
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Journal volume & issue
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Vol. 763
pp. 16 – 19
Abstract
A new technique developed for measuring nuclear reactions at low momentum transfer with stored beams in inverse kinematics was successfully used to study isoscalar giant resonances. The experiment was carried out at the experimental heavy-ion storage ring (ESR) at the GSI facility using a stored 58Ni beam at 100 MeV/u and an internal helium gas-jet target. In these measurements, inelastically scattered α-recoils at very forward center-of-mass angles (θcm≤1.5°) were detected with a dedicated setup, including ultra-high vacuum compatible detectors. Experimental results indicate a dominant contribution of the isoscalar giant monopole resonance at this very forward angular range. It was found that the monopole contribution exhausts 79−11+12% of the energy-weighted sum rule (EWSR), which agrees with measurements performed in normal kinematics. This opens up the opportunity to investigate the giant resonances in a large domain of unstable and exotic nuclei in the near future. It is a fundamental milestone towards new nuclear reaction studies with stored ion beams. Keywords: Storage ring, Inverse kinematics, Isoscalar giant resonances
