title: The 44Ti(alpha,p) reaction and its implication on the 44Ti yield in supernovae
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.
authors.affiliation: Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA.
authors.initials: AA
authors.lastname: Sonzogni
authors.initials: KE
authors.lastname: Rehm
authors.initials: I
authors.lastname: Ahmad
authors.initials: F
authors.lastname: Borasi
authors.initials: DL
authors.lastname: Bowers
authors.initials: F
authors.lastname: Brumwell
authors.initials: J
authors.lastname: Caggiano
authors.initials: CN
authors.lastname: Davids
authors.initials: JP
authors.lastname: Greene
authors.initials: B
authors.lastname: Harss
authors.initials: A
authors.lastname: Heinz
authors.initials: D
authors.lastname: Henderson
authors.initials: RV
authors.lastname: Janssens
authors.initials: CL
authors.lastname: Jiang
authors.initials: G
authors.lastname: McMichael
authors.initials: J
authors.lastname: Nolen
authors.initials: RC
authors.lastname: Pardo
authors.initials: M
authors.lastname: Paul
authors.initials: JP
authors.lastname: Schiffer
authors.initials: RE
authors.lastname: Segel
authors.initials: D
authors.lastname: Seweryniak
authors.initials: RH
authors.lastname: Siemssen
authors.initials: JW
authors.lastname: Truran
authors.initials: J
authors.lastname: Uusitalo
authors.initials: I
authors.lastname: Wiedenhover
authors.initials: B
authors.lastname: Zabransky