High-precision ($p$,$t$) reaction to determine $^{25}\mathrm{Al}$($p,\ensuremath{\gamma}$)$^{26}\mathrm{Si}$ reaction rates

High-precision ( $p$ , $t$ ) reaction to determine ${}^{25}{Al}$ ( $p, γ$ ) ${}^{26}{Si}$ reaction rates

A. Matic, A. M. van den Berg, M. N. Harakeh, H. J. Wörtche, G. P. A. Berg, M. Couder, J. Görres, P. LeBlanc, S. O’Brien, M. Wiescher, K. Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, T. Adachi, Y. Fujita, Y. Shimbara, H. Fujita, T. Wakasa, B. A. Brown, and H. Schatz

Phys. Rev. C 82, 025807 – Published 18 August 2010

Abstract

Since the identification of ongoing ${}^{26}{Al}$ production in the universe, the reaction sequence ${}^{24}{Mg}$ ( $p, γ$ ) ${}^{25}{Al}$ ( $β^{+} ν$ ) ${}^{25}{Mg}$ ( $p, γ$ ) ${}^{26}{Al}$ has been studied intensively. At temperatures where the radiative capture on ${}^{25}{Al}$ ( $t_{1 / 2} = 7.2$ s) becomes faster than the $β^{+}$ decay, the production of ${}^{26}{Al}$ can be reduced due to the depletion of ${}^{25}{Al}$ . To determine the resonances relevant for the ${}^{25}{Al}$ ( $p, γ$ ) ${}^{26}{Si}$ bypass reaction, we measured the ${}^{28}{Si} (p, t) {}^{26}{Si}$ reaction with high-energy precision using the Grand Raiden spectrometer at the Research Center for Nuclear Physics, Osaka. Several new energy levels were found above the $p$ threshold and for known states excitation energies were determined with smaller uncertainties. The calculated stellar rates of the bypass reaction agree well with previous results, suggesting that these rates are well established.

2 More

Received 15 June 2010

DOI:https://doi.org/10.1103/PhysRevC.82.025807

Authors & Affiliations

A. Matic^*, A. M. van den Berg, M. N. Harakeh^†, and H. J. Wörtche

Kernfysisch Versneller Instituut, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands

G. P. A. Berg, M. Couder, J. Görres, P. LeBlanc, S. O’Brien, and M. Wiescher

Department of Physics and the Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA

K. Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu^‡, Y. Tameshige^§, A. Tamii, and M. Yosoi

Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 560-0047, Japan

T. Adachi, Y. Fujita, and Y. Shimbara

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan

H. Fujita

School of Physics, University of the Witwatersrand, P.O. Wits, Johannesburg 2050, South Africa

T. Wakasa

Department of Physics, Kyushu University, Fukuoka 812-8581, Japan

B. A. Brown and H. Schatz

Department of Physics and Astronomy, National Superconducting Cyclotron Laboratory and the Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA

^*Present address: Forschungszentrum Dresden-Rossendorf, Postfach 510119, 01314 Dresden, D-01328 Dresden, Germany.
^†Present address: GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, D-64291 Darmstadt, Germany.
^‡Present address: Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan.
^§Present address: Office for Development of Proton Therapy Center, Regional Health Services Division, Department of Health and Welfare Fukui Prefectural Government, Fukui City, Fukui Prefecture 910-0846, Japan.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Issue

Vol. 82, Iss. 2 — August 2010

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Physical Review C

covering nuclear physics

High-precision ( $p$ , $t$ ) reaction to determine ${}^{25}{Al}$ ( $p, γ$ ) ${}^{26}{Si}$ reaction rates

Phys. Rev. C 82, 025807 – Published 18 August 2010

Abstract

Authors & Affiliations

Article Text (Subscription Required)

References (Subscription Required)

Issue

Access Options

Physical Review C

covering nuclear physics

High-precision (p,t) reaction to determine Al25(p,γ)Si26 reaction rates

Phys. Rev. C 82, 025807 – Published 18 August 2010

Abstract

Authors & Affiliations

Article Text (Subscription Required)

References (Subscription Required)

Issue

Access Options

Authorization Required

Other Options

Download & Share

Images

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Log In

Search

Article Lookup

Paste a citation or DOI

Enter a citation

High-precision ( $p$ , $t$ ) reaction to determine ${}^{25}{Al}$ ( $p, γ$ ) ${}^{26}{Si}$ reaction rates