Proton decay of states in {sup 11}N

Journal Article · Sun Feb 01 04:00:00 EST 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.57.628· OSTI ID:568364

Azhari, A; Baumann, T; Brown, J A; Hellstroem, M; Kelley, J H; Kryger, R A; Ramakrishnan, E; Suomijarvi, T; Thoennessen, M; Yokoyama, S ^[1]; Millener, D J ^[2]; Madani, H; Russ, D E ^[3]

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1. National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
2. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
3. Department of Chemistry, University of Maryland, College Park, Maryland 20742 (United States)

The proton-unbound nucleus {sup 11}N has been studied via kinematic reconstruction of the emitted proton in coincidence with the residual {sup 10}C daughter nucleus. Resonances in {sup 11}N were populated by using a 40 MeV/nucleon radioactive beam of {sup 12}N to induce the reaction {sup 9}Be({sup 12}N,{sup 11}N), followed by the proton decay of {sup 11}N. The decay energy spectrum was constructed from the energies and separation angle of the {sup 10}C and the proton. In addition to protons from the known 1/2{sup {minus}} state, at 2.24 MeV above the proton decay threshold, another peak is seen near 1.45 MeV. This peak could potentially be due to the predicted 1/2{sup +} ground state and/or due to the decay of the 3/2{sup {minus}} state to the first excited state of {sup 10}C {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 568364
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 57; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BERYLLIUM 9 TARGET
CARBON 10
ENERGY SPECTRA
EXCITED STATES
GROUND STATES
HEAVY ION REACTIONS
NITROGEN
NITROGEN 11
PROTON-EMISSION DECAY
RADIOACTIVE ION BEAMS