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Title: Structure of C 9 through proton resonance scattering with the Texas Active Target detector

Abstract

Structure of very exotic nucleus, carbon-9, has been studied using novel detector - Texas Active Target (TexAT). Carbon-9 can be produced by removing three neutrons from the stable carbon-12 isotope, which we inhale every few seconds as part of carbon-dioxide gas. The structure of this exotic carbon, carbon-9, is very different from the stable carbon (carbon-12) and much less explored due to experimental difficulties of producing it. Yet, it is important for benchmarking the contemporary, state-of-the-art theories of nuclear structure. In particular, excitation energy of the positive parity states, that indicate an onset of the sd-shell, was not known in 9C. Here, we have conclusively identified the first positive parity state in 9C. It was made possible by the new capabilities provided buy TexAT.

Authors:
 [1]; ORCiD logo [2];  [2];  [2];  [2];  [2];  [2];  [3];  [4];  [2];  [2];  [2]
  1. Texas A & M Univ., College Station, TX (United States); Univ. of Tennessee, Knoxville, TN (United States)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Texas A & M Univ., College Station, TX (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  4. IRFU, CEA, Gif-Sur-Ivette (France)
Publication Date:
Research Org.:
Texas A & M Univ., College Station, TX (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC)
OSTI Identifier:
1578286
Grant/Contract Number:  
NA0003841; FG02-93ER40773
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 100; Journal Issue: 5; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Hooker, J., Rogachev, G. V., Koshchiy, E., Ahn, S., Barbui, M., Goldberg, V. Z., Hunt, C., Jayatissa, H., Pollacco, E. C., Roeder, B. T., Saastamoinen, A., and Upadhyayula, S. Structure of C9 through proton resonance scattering with the Texas Active Target detector. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.100.054618.
Hooker, J., Rogachev, G. V., Koshchiy, E., Ahn, S., Barbui, M., Goldberg, V. Z., Hunt, C., Jayatissa, H., Pollacco, E. C., Roeder, B. T., Saastamoinen, A., & Upadhyayula, S. Structure of C9 through proton resonance scattering with the Texas Active Target detector. United States. https://doi.org/10.1103/PhysRevC.100.054618
Hooker, J., Rogachev, G. V., Koshchiy, E., Ahn, S., Barbui, M., Goldberg, V. Z., Hunt, C., Jayatissa, H., Pollacco, E. C., Roeder, B. T., Saastamoinen, A., and Upadhyayula, S. Thu . "Structure of C9 through proton resonance scattering with the Texas Active Target detector". United States. https://doi.org/10.1103/PhysRevC.100.054618. https://www.osti.gov/servlets/purl/1578286.
@article{osti_1578286,
title = {Structure of C9 through proton resonance scattering with the Texas Active Target detector},
author = {Hooker, J. and Rogachev, G. V. and Koshchiy, E. and Ahn, S. and Barbui, M. and Goldberg, V. Z. and Hunt, C. and Jayatissa, H. and Pollacco, E. C. and Roeder, B. T. and Saastamoinen, A. and Upadhyayula, S.},
abstractNote = {Structure of very exotic nucleus, carbon-9, has been studied using novel detector - Texas Active Target (TexAT). Carbon-9 can be produced by removing three neutrons from the stable carbon-12 isotope, which we inhale every few seconds as part of carbon-dioxide gas. The structure of this exotic carbon, carbon-9, is very different from the stable carbon (carbon-12) and much less explored due to experimental difficulties of producing it. Yet, it is important for benchmarking the contemporary, state-of-the-art theories of nuclear structure. In particular, excitation energy of the positive parity states, that indicate an onset of the sd-shell, was not known in 9C. Here, we have conclusively identified the first positive parity state in 9C. It was made possible by the new capabilities provided buy TexAT.},
doi = {10.1103/PhysRevC.100.054618},
journal = {Physical Review C},
number = 5,
volume = 100,
place = {United States},
year = {Thu Nov 21 00:00:00 EST 2019},
month = {Thu Nov 21 00:00:00 EST 2019}
}

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