First measurement of isoscalar giant resonances in a stored-beam experiment

Bibliographic Details
Title: First measurement of isoscalar giant resonances in a stored-beam experiment
Authors: 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
Source: Physics Letters B, Vol 763, Iss , Pp 16-19 (2016)
Publisher Information: Elsevier, 2016.
Publication Year: 2016
Collection: LCC:Physics
Subject Terms: Physics, QC1-999
More Details: 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
Document Type: article
File Description: electronic resource
Language: English
ISSN: 0370-2693
Relation: http://www.sciencedirect.com/science/article/pii/S037026931630586X; https://doaj.org/toc/0370-2693
DOI: 10.1016/j.physletb.2016.10.015
Access URL: https://doaj.org/article/51144d7104a54650a61bade6f78b920e
Accession Number: edsdoj.51144d7104a54650a61bade6f78b920e
Database: Directory of Open Access Journals
More Details
ISSN:03702693
DOI:10.1016/j.physletb.2016.10.015
Published in:Physics Letters B
Language:English