[Triumf-seminars] TRIUMF Colloquium today at 14:00

[TRIUMF Seminars]

Date/Time: Mon 2016-04-04 at 14:00

Location:  Auditorium          

Speaker:   Steven Pain (Oak Ridge National Lab)

Title:     Nuclear astrophysics with ORRUBA

Abstract: It is crucial to quantify nuclear reaction rates in astrophysical environments in order to understand the energetics of stars and explosive stellar environments, and the origin of the chemical elements from which we are made. Many of the critical reactions involve short-lived nuclides and/or very low cross sections, making direct measurements of the reaction rate at stellar temperatures currently infeasible. However, it is possible to determine these reaction rates by using alternative, more favorable, reactions to constrain the properties of the nuclei involved. The Oak Ridge Rutgers University Barrel Array (ORRUBA) was developed a decade ago with a primary focus on studying nuclei of astrophysical interest. More recently, ORRUBA has been coupled to other instruments, such as Gammasphere and JENSA, in order to further its scope. An overview of the instrument, some of its scientific results, and future implementations will be presented.



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