Published August 21, 2013 | Version v1
Journal article Metadata-only

Observation of a low-lying neutron-unbound state in 19C

Creators

  • 1. Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824 (United States)
  • 2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824 (United States)
  • 3. Department of Physics, Rhodes College, Memphis, TN 38112 (United States)
  • 4. Department of Physics, Westmont College, Santa Barbara, CA 93108 (United States)
  • 5. Department of Physics, Wabash College, Crawfordsville, IN 47933 (United States)
  • 6. Department of Physics, Hope College, Holland, MI 49423 (United States)
  • 7. Department of Physics, Central Michigan University, Mt. Pleasant, MI 48859 (United States)
  • 8. Department of Physics, Concordia College, Moorhead, MN 56562 (United States)

Description

Proton removal reactions from a secondary 22N beam were utilized to populate unbound states in neutron-rich carbon isotopes. Neutrons were measured with the Modular Neutron Array (MoNA) in coincidence with carbon fragments. A resonance with a decay energy of 76(14) keV was observed in the system 18C+n corresponding to a state in 19C at an excitation energy of 653(95) keV. This resonance could correspond to the first 5/2+ state which was recently speculated to be unbound in order to describe 1n and 2n removal cross section measurements from 20C

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nuclphysa.2013.05.001

Additional details

Identifiers

DOI
10.1016/j.nuclphysa.2013.05.001;
arXiv
arXiv:1305.0677v1;
PII
S0375-9474(13)00509-5;

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
912
Journal Page Range
p. 1-6
ISSN
0375-9474
CODEN
NUPABL

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45048766
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
BERYLLIUM 9; CARBON 18; CARBON 19; CARBON 20; CROSS SECTIONS; ENERGY LEVELS; EXCITATION; KEV RANGE; MEV RANGE; NEUTRONS; NITROGEN 22; NUCLEAR FRAGMENTATION; NUCLEAR FRAGMENTS; NUCLEAR REACTIONS; NUCLEAR STRUCTURE; PROTONS; SHELL MODELS
Descriptors DEC
ALKALINE EARTH ISOTOPES; BARYONS; BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON ISOTOPES; ELEMENTARY PARTICLES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; HADRONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; MILLISECONDS LIVING RADIOISOTOPES; NITROGEN ISOTOPES; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; RADIOISOTOPES; STABLE ISOTOPES

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.