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Search for a low-energy resonance in 7He with the 7Li(d, 2He) reaction☆

Ryezayeva, N. ; Bäumer, C. ; Berg, A. M. van den ; Chulkov, L. V. ; Frekers, D. ; Frenne, D. de ; Grewe, E.-W. ; Haefner, P. ; Jacobs, E. ; Johanson, H. ; Kalmykov, Y. ; Negret, A. ; Neumann-Cosel, P. ; Popescu, L. ; Rakers, S. ; Richter, A. ; Schrieder, G. ; Shevchenko, A. ; Simon, H. ; Wörtche, H. J. (2006)
Search for a low-energy resonance in 7He with the 7Li(d, 2He) reaction☆.
In: Physics Letters B, 639 (6)
doi: 10.1016/j.physletb.2006.06.081
Article, Bibliographie

Item Type: Article
Erschienen: 2006
Creators: Ryezayeva, N. ; Bäumer, C. ; Berg, A. M. van den ; Chulkov, L. V. ; Frekers, D. ; Frenne, D. de ; Grewe, E.-W. ; Haefner, P. ; Jacobs, E. ; Johanson, H. ; Kalmykov, Y. ; Negret, A. ; Neumann-Cosel, P. ; Popescu, L. ; Rakers, S. ; Richter, A. ; Schrieder, G. ; Shevchenko, A. ; Simon, H. ; Wörtche, H. J.
Type of entry: Bibliographie
Title: Search for a low-energy resonance in 7He with the 7Li(d, 2He) reaction☆
Language: English
Date: August 2006
Journal or Publication Title: Physics Letters B
Volume of the journal: 639
Issue Number: 6
DOI: 10.1016/j.physletb.2006.06.081
Alternative Abstract:
Alternative abstract Language

A search for the J[pi]=1/2- spin-orbit partner of the J[pi]=3/2- ground state in 7He has been performed with the charge-exchange reaction. The experimental results are incompatible with recent claims of such a state at very low excitation energy [M. Meister, et al., Phys. Rev. Lett. 88 (2002) 102501]. A decomposition of the spectrum is performed taking into account known resonances and quasifree charge-exchange reactions on 7Li as well as on triton and 4He clusters in the 7Li ground state. A possible resonance at an excitation energy with a width is suggested when the quasifree charge-exchange process on 7Li is constrained by a measurement of the reaction. Gamow-Teller strengths for transitions to the lowest states in 7He deduced from the differential cross sections are in remarkable agreement with results from ab initio quantum Monte Carlo calculations.

English
Divisions: DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > C: Fundamentale Experimente
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 634: Nuclear Structure, Nuclear Astrophysics and Fundamental Experiments at Low Momentum Transfer at the Superconducting Darmstadt Accelerator (S-DALINAC) > C: Fundamentale Experimente > C2: Elektronstreuung an Wenig-Nukleonen-Systemen
Date Deposited: 20 Jun 2011 07:12
Last Modified: 26 Aug 2021 15:45
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