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20 April 2024

» pubmed » pmid11017592

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The 44Ti(alpha,p) reaction and its implication on the 44Ti yield in supernovae
A A Sonzogni ; K E Rehm ; I Ahmad ; F Borasi ; D L Bowers ; F Brumwell ; J Caggiano ; C N Davids ; J P Greene ; B Harss ; A Heinz ; D Henderson ; R V Janssens ; C L Jiang ; G McMichael ; J Nolen ; R C Pardo ; M Paul ; J P Schiffer ; R E Segel ; D Seweryniak ; R H Siemssen ; J W Truran ; J Uusitalo ; I Wiedenhover ; B Zabransky ;
Date:	21 Feb 2000
Journal:	Phys Rev Lett, 84 (8), 1651-4
Abstract:	Cross sections for the 44Ti(alpha,p)47V reaction which significantly affects the yield of 44Ti in supernovae were measured in the energy range 5.7 MeV</=E(c.m.)</=9 MeV, using a beam of radioactive 44Ti. The cross sections and the deduced astrophysical reaction rates are larger than the results from theoretical calculations by about a factor of 2. The implications of this increase in the reaction rate for the search of supernovae using space-based gamma detectors are discussed.
Source:	PubMed, pmid11017592
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