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Title: Exclusive Spallation Measurements on 56Fe+p with the SPALADIN setup

Abstract

First coincidence data on the 56Fe+p reaction at 1 A.GeV in inverse kinematics obtained with the SPALADIN setup are presented. Data on charge correlations of cluster emissions occurring in the spallation reaction are shown and compared to spallation codes with the aim of discriminating between the various de-excitation mechanisms.

Authors:
; ; ; ; ;  [1]; ; ;  [2]; ;  [3]; ; ; ; ; ; ; ; ;  [4]
  1. DAPNIA/SPhN, CEA/Saclay, F-91191 Gif sur Yvette Cedex (France)
  2. Physics Department E12, TU Munchen, D-85748 Garching (Germany)
  3. IPN Orsay, F-91406 Orsay Cedex (France)
  4. GSI, Planckstrasse 1, D-64291 Darmstadt (Germany) (and others)
Publication Date:
OSTI Identifier:
20798620
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 831; Journal Issue: 1; Conference: International conference on frontiers in nuclear structure, astrophysics, and reactions - FINUSTAR, Isle of Kos (Greece), 12-17 Sep 2005; Other Information: DOI: 10.1063/1.2201007; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CORRELATIONS; DE-EXCITATION; GEV RANGE; HYDROGEN 1 TARGET; ION EMISSION; IRON 56; IRON 56 REACTIONS; PROTON-NUCLEON INTERACTIONS; SPALLATION

Citation Formats

Pietri, S., Le Gentil, E., Boudard, A., Ducret, J.-E., Leray, S., Volant, C., Boehmer, M., Gernhaeuser, R., Kruecken, R., Lafriakh, A., Bacri, C.-O., Aumann, T., Johansson, H., Kelic, A., Kezzar, K., Le Fevre, A., Lukasik, J., Mueller, W. F. J., Schwarz, C., and Sfienti, C. Exclusive Spallation Measurements on 56Fe+p with the SPALADIN setup. United States: N. p., 2006. Web. doi:10.1063/1.2201007.
Pietri, S., Le Gentil, E., Boudard, A., Ducret, J.-E., Leray, S., Volant, C., Boehmer, M., Gernhaeuser, R., Kruecken, R., Lafriakh, A., Bacri, C.-O., Aumann, T., Johansson, H., Kelic, A., Kezzar, K., Le Fevre, A., Lukasik, J., Mueller, W. F. J., Schwarz, C., & Sfienti, C. Exclusive Spallation Measurements on 56Fe+p with the SPALADIN setup. United States. doi:10.1063/1.2201007.
Pietri, S., Le Gentil, E., Boudard, A., Ducret, J.-E., Leray, S., Volant, C., Boehmer, M., Gernhaeuser, R., Kruecken, R., Lafriakh, A., Bacri, C.-O., Aumann, T., Johansson, H., Kelic, A., Kezzar, K., Le Fevre, A., Lukasik, J., Mueller, W. F. J., Schwarz, C., and Sfienti, C. Wed . "Exclusive Spallation Measurements on 56Fe+p with the SPALADIN setup". United States. doi:10.1063/1.2201007.
@article{osti_20798620,
title = {Exclusive Spallation Measurements on 56Fe+p with the SPALADIN setup},
author = {Pietri, S. and Le Gentil, E. and Boudard, A. and Ducret, J.-E. and Leray, S. and Volant, C. and Boehmer, M. and Gernhaeuser, R. and Kruecken, R. and Lafriakh, A. and Bacri, C.-O. and Aumann, T. and Johansson, H. and Kelic, A. and Kezzar, K. and Le Fevre, A. and Lukasik, J. and Mueller, W. F. J. and Schwarz, C. and Sfienti, C.},
abstractNote = {First coincidence data on the 56Fe+p reaction at 1 A.GeV in inverse kinematics obtained with the SPALADIN setup are presented. Data on charge correlations of cluster emissions occurring in the spallation reaction are shown and compared to spallation codes with the aim of discriminating between the various de-excitation mechanisms.},
doi = {10.1063/1.2201007},
journal = {AIP Conference Proceedings},
number = 1,
volume = 831,
place = {United States},
year = {Wed Apr 26 00:00:00 EDT 2006},
month = {Wed Apr 26 00:00:00 EDT 2006}
}
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  • The Gamow-Teller (GT) transitions in the {beta}{sup +}(electron capture) direction from the ground state of {sup 56}Fe to the excited states of {sup 56}Mn play an important role in the core collapse of presupernova. Assuming that isospin analogous transitions in isobars have corresponding strengths, we deduced these GT strengths by combining the results of the {sup 56}Fe(p, p'){sup 56}Fe experiment performed at 200 MeV and 0 deg. and the {sup 56}Fe({sup 3}He, t){sup 56}Co experiment in the {beta}{beta} direction at 140 MeV/u and 0 deg. The ground state of {sup 56}Fe has the isospin value of T = 2, whilemore » the GT states in {sup 56}Mn have T = 3. In order to identify the analogous T = 2{yields}3, GT transitions in the {sup 56}Fe(p, p'){sup 56}Fe and the {sup 56}Fe({sup 3}He, t){sup 56}Co measurements, we used the fact that the isospin Clebsch-Gordan (CG) coefficients for these T = 2{yields}3 transitions are different in these measurements. Then the GT transition strengths B(GT) in the {beta}{sup +} direction can be deduced from the B(GT) values of the corresponding transitions well determined in the {sup 56}Fe({sup 3}He, t){sup 56}Co measurement assuming the isospin symmetry and correcting the difference of CG coefficients.« less
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