Proton capture resonant state of O15 at 7556 keV

Sathi Sharma, Arkabrata Gupta, M. Roy Chowdhury, A. Mandal, A. Bisoi, V. Nanal, L. C. Tribedi, and M. Saha Sarkar
Phys. Rev. C 102, 024308 – Published 6 August 2020

Abstract

The slowest reaction in the CNO cycle N14(p,γ)O15 has been studied by populating the Eplab=278 keV (Ec.m.r=259 keV) proton capture resonant state of O15 at 7556 keV. The strength of the resonance (ωγ) has been determined from the experimental data. The level lifetime of the subthreshold resonant state at Ex=6792 keV, as well as the lifetimes of the 5181 keV and 6172 keV states, have been measured using the Doppler shift attenuation method (DSAM). The structural properties of the nucleus O15, such as the level energies, transition strengths, level lifetimes, and spectroscopic factors, have been calculated theoretically by using the large basis shell model, which agrees reasonably well with the present as well as the previous experimental data.

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  • Received 19 June 2020
  • Accepted 20 July 2020

DOI:https://doi.org/10.1103/PhysRevC.102.024308

©2020 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Sathi Sharma1, Arkabrata Gupta2, M. Roy Chowdhury3, A. Mandal3, A. Bisoi2, V. Nanal3, L. C. Tribedi3, and M. Saha Sarkar1,*

  • 1Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Kolkata - 700 064, India
  • 2Indian Institute of Engineering Science and Technology, Shibpur, Howrah - 711 103, India
  • 3Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Colaba, Mumbai - 400 005, India

  • *maitrayee.sahasarkar@saha.ac.in

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Vol. 102, Iss. 2 — August 2020

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