Coulomb dissociation of P 27 at 500 MeV/u

R3B Collaboration

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The proton-capture reaction Si26(p,γ)P27 was studied via Coulomb dissociation (CD) of P27 at an incident energy of about 500 MeV/u. The three lowest-lying resonances in P27 have been populated and their resonance strengths have been measured. In addition, a nonresonant direct-capture component was clearly identified and its astrophysical S factor measured. The experimental results are compared to Monte Carlo simulations of the CD process using a semiclassical model. Our thermonuclear reaction rates show good agreement with the rates from a recent compilation. With respect to the nuclear structure of P27 we have found evidence for a negative-parity intruder state at 2.88-MeV excitation energy.

Original languageEnglish
Article number045811
JournalPhysical Review C - Nuclear Physics
Volume93
Issue number4
DOIs
Publication statusPublished - Apr 26 2016

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dissociation
thermonuclear reactions
nuclear structure
astrophysics
parity
reaction kinetics
protons
energy
excitation
simulation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Coulomb dissociation of P 27 at 500 MeV/u. / R3B Collaboration.

In: Physical Review C - Nuclear Physics, Vol. 93, No. 4, 045811, 26.04.2016.

Research output: Contribution to journalArticle

R3B Collaboration. / Coulomb dissociation of P 27 at 500 MeV/u. In: Physical Review C - Nuclear Physics. 2016 ; Vol. 93, No. 4.
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abstract = "The proton-capture reaction Si26(p,γ)P27 was studied via Coulomb dissociation (CD) of P27 at an incident energy of about 500 MeV/u. The three lowest-lying resonances in P27 have been populated and their resonance strengths have been measured. In addition, a nonresonant direct-capture component was clearly identified and its astrophysical S factor measured. The experimental results are compared to Monte Carlo simulations of the CD process using a semiclassical model. Our thermonuclear reaction rates show good agreement with the rates from a recent compilation. With respect to the nuclear structure of P27 we have found evidence for a negative-parity intruder state at 2.88-MeV excitation energy.",
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AU - R3B Collaboration

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AU - Beceiro Novo, S.

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AU - Wimmer, C.

AU - Alvarez-Pol, H.

AU - Aumann, T.

AU - Boretzky, K.

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AU - Chatillon, A.

AU - Cortina-Gil, D.

AU - Datta-Pramanik, U.

AU - Elekes, Z.

AU - Fülöp, Zs. S.

AU - Galaviz, D.

AU - Geissel, H.

AU - Giron, S.

AU - Greife, U.

AU - Hammache, F.

AU - Heil, M.

AU - Hoffman, J.

AU - Johansson, H.

AU - Kiselev, O.

AU - Kurz, N.

AU - Larsson, K.

AU - Le Bleis, T.

AU - Litvinov, Yu A.

AU - Mahata, K.

AU - Muentz, C.

AU - Nociforo, C.

AU - Ott, W.

AU - Paschalis, S.

AU - Plag, R.

AU - Prokopowicz, W.

AU - Rodríguez Tajes, C.

AU - Rossi, D. M.

AU - Simon, H.

AU - Stanoiu, M.

AU - Stroth, J.

AU - Sümmerer, K.

AU - Wagner, A.

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AU - Weick, H.

AU - Wiescher, M.

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AB - The proton-capture reaction Si26(p,γ)P27 was studied via Coulomb dissociation (CD) of P27 at an incident energy of about 500 MeV/u. The three lowest-lying resonances in P27 have been populated and their resonance strengths have been measured. In addition, a nonresonant direct-capture component was clearly identified and its astrophysical S factor measured. The experimental results are compared to Monte Carlo simulations of the CD process using a semiclassical model. Our thermonuclear reaction rates show good agreement with the rates from a recent compilation. With respect to the nuclear structure of P27 we have found evidence for a negative-parity intruder state at 2.88-MeV excitation energy.

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