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Browsing by Author "Valdez, L."

Browsing by Author "Valdez, L."

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  • Comparing experimental and calculated electron-capture rates of pf-shell nuclei in explosive stellar environments 
    Cole, A.L.; Anderson, T.S.; Austin, S.M.; Brown, B.A.; Dombos, A.C.; Fawwaz, O.; Gupta, S.; Hitt, G.W.; Schooley, A.K.; Valdez, L.; Zegers, R.G.T. Z (2016-12-01)
    In explosive stellar environments electron-capture rates on pf-shell nuclei are needed to model core-collapse and thermonuclear supernovae. Electron-capture (EC) rates can be determined from Gamow-Teller (GT) transitions ...
  • Gamow-Teller strengths and electron-capture rates for pf-shell nuclei of relevance for late stellar evolution 
    Cole, A.L.; Anderson, T.S.; Zegers, R.G.T.; Austin, S.M.; Brown, B.A.; Valdez, L.; Gupta, S.; Hitt, G.W.; Fawwaz, O. (2016-12-01)
    Background: Electron-capture reaction rates on medium-heavy nuclei are an important ingredient for modeling the late evolution of stars that become core-collapse or thermonuclear supernovae. The estimation of these rates ...
  • Gamow-Teller transition strengths from Fe 56 extracted from the Fe 56 (t, He 3) reaction 
    Scott, M.; Shimbara, Y.; Austin, S. M.; Bazin, D.; Brown, B. A.; Deaven, J. M.; Fujita, Y.; Guess, C. J.; Gupta, S.; Hitt, G. W.; Koeppe, D.; Meharchand, R.; Nagashima, M.; Perdikakis, G.; Prinke, A.; Sasano, M.; Sullivan, C.; Valdez, L.; Zegers, R. G. T. (2021-09-20)
    Background: Gamow-Teller (GT) transition strengths are key inputs for estimating weak reaction rates of importance for a wide variety of astrophysical applications. (n,p)-type charge-exchange reactions, such as the (t,3He) ...
  • Gamow-Teller transitions to 45Ca via the 45Sc(t, 3He + γ ) reaction at 115 MeV/u and its application to stellar electron-capture rates 
    Noji, S.; Zegers, R. G. T.; Austin, S.M.; Baugher, T.; Bazin, D.; Brown, B. A.; Campbell, C. M.; Cole, A. L.; Doster, H. J.; Gade, A.; Guess, C. J.; Gupta, S.; Hitt, G. W.; Langer, C.; Lipschutz, S.; Lunderberg, E.; Meharchand, R.; Meisel, Z.; Perdikakis, G.; Pereira, J.; Recchia, F.; Schatz, H.; Scott, M.; Stroberg, S.R.; Sullivan, C.; Valdez, L.; Valdez, C.; Weisshaar, D.; Williams, S.J.; Wimmer, K. (2016-11-18)
    View at Publisher| Export | Download | Add to List | More... Physical Review C - Nuclear Physics Volume 92, Issue 2, 17 August 2015, Article number 024312 Gamow-Teller transitions to Ca 45 via the Sc 45 (t, He 3 ...
  • β+ Gamow-teller transition strengths from Ti 46 and stellar electron-capture rates 
    Noji, S.; Zegers, R.G.T.; Austin, S.M.; Baugher, T.; Bazin, D.; Brown, A.B.; Campbell, C.M.; Cole, A.L.; Doster, H.J.; Gade, A.; Guess, C.J.; Gupta, S.; Hitt, G.W.; Langer, G.; Lipschutz, S.; Lunderberg, E.; Meharchand, R.; Meisel, Z.; Perdikakis, G.; Pereira, J.; Recchia, F.; Schatz, H.; Scott, M.; Stroberg, S.R.; Sullivan, C.; Valdez, L.; Walz, C.; Weisshaar, D.; William, S.J.; Wimmer, K. (2016-11-22)
    The Gamow-Teller strength in the β+ direction to Sc46 was extracted via the Ti46(t,He3+γ) reaction at 115MeV/u. The γ-ray coincidences served to precisely measure the very weak Gamow-Teller transition to a final state at ...