Nuclear and Particle Physics Colloquium 63

Speaker:Bing Guo (郭冰), CIAE

Place:Room 316, Main Building,Beihang University

Time:14:00-16:00, October 25, 2018

Title:Progress of Jinping Underground Nuclear Astrophysics (JUNA) project

Abstract:

Direct measurement of the cross sections for key nuclear reactions in hydrostatic stellar evolution within Gamow window, which makes use of low background at deep underground laboratory, is crucial to obtain benchmark data [1,2]. The Jinping Underground Nuclear Astrophysics (JUNA) project aims at direct measurement of (α,γ), (α,n) reactions in hydrostatic helium burning and (p, γ), (p, α) reactions in hydrostatic hydrogen burning based on Jinping deep underground laboratory, and will provide key input of nuclear physics for understanding evolution of stars and origin of elements [3]. The key techniques, which include the accelerator system with high stability and high intensity, the detector system, and the shielding material with low background, will be developed through the above research.

References:

1. C. Rolfs and W. S. Rodney, Cauldrons in the Cosmos, The University Chicago Press, 1988.

2. H. Costantini, A. Formicola, G. Imbriani, M. Junker, C. Rolfs and F.Strieder, LUNA: a laboratory for underground nuclear astrophysics, Rep. Prog. Phys. 72, 086301 (2009).

3. WeiPing Liu et al., Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA), Sci. China-Phys. Mech. Astron. 59, 642001 (2016).