[RIBF-ULIC-Symposium-004] Impact of new triple alpha reaction rate on stellar evolution and nucleosynthesis

17 Dec 2010, 09:00 → 18 Dec 2010, 18:00 Asia/Tokyo

Nishina Hall (RIKEN Nishina Center)

Recent studies indicate that aaa reaction rate is larger than the NACRE compilation. The rate at the temperature of ~0.1GK affects the evolution of the AGB stars, and at the temperature of ~1GK affects the synthesis of light p-nuclei in the supernovae nup-process. In this workshop, we will discuss, 1. aaa reaction rate 2. Effect of new aaa rate on the evolution of AGB stars and the CNO cycle 3. Effect of new aaa rate on supernovae nup process 4. Future experiments in RIBF related to CNO and nup process Contact person: Yasuhiro Togano e-mail: togano at ribf.riken.jp (please change "at" to "@")

Application to ULIC RIBF-ULIC-Symposium-004a.pdf

Report RIBF-ULIC-Symposium-004-report.pdf

Friday, 17 December

10:00 → 10:10 Opening Remarks

Speaker: Dr Yasuhiro Togano (RIKEN Nishina Center)

10:10 → 12:30 aaa reaction rate at around 0.1GK and evolution of AGB star

10:10 Quantum three-body calculation of triple-alpha reaction rate

Speaker: Dr Kazuyuki Ogata (Kyusyu University)

10:50 Three-body Faddeev calculation of triple-alpha reaction at low energies

Speaker: Dr Souichi Ishikawa (Hosei University)

11:30 Effect of triple alpha reaction rate on stellar evolution

Speaker: Dr Takuma Suda (Hokkaido University)

13:30 → 17:30 CNO cycle

13:30 TBA

Speaker: Dr Kazunari Yamada (RIKEN Nishina Center)

14:00 Lifetime measurements of the 6.791 MeV state in 15O to constrain the 14N(p,g)15O reaction rate

Speaker: Dr Naomi Galinski (TRIUMF)

14:40 break

14:50 Experiments on explosive nucleosynthesis in pp and CNO region at CRIB

Speaker: Prof. Shigeru Kubono (CNS)

15:20 Experiments with RIBF for (hot-) CNO cycle

Speaker: Dr Tohru Motobayashi (RIKEN Nishina Center)

15:50 TBA

Speaker: Dr Silvio Cherubini (INFN-LNS)

16:20 break

16:30 Discussion 1

Saturday, 18 December

10:00 → 12:30 aaa reaction rate at around 1GK

10:00 Contribution from alpha- condensed states to the triple-alpha reaction

Speaker: Dr Kiyoshi Kato (Hokkaido University)

10:40 The 2+ excitation of the triple-alpha state in 12C by inelastic alpha scattering

Speaker: Dr Masatoshi Itoh (CYRIC)

11:20 Role of the triple-alpha reaction in the nu p-process

Speaker: Dr Shinya Wanajo (TUM/MPA)

12:00 Direct measurement of the triple-alpha photodisintegration of 12C

Speaker: Dr Tatsushi Shima (RCNP)

13:30 → 17:10 Measurements of the stellar reactions in explosive nucleosynthesis

13:30 TBA

Speaker: Dr Seiya Hayakawa (CNS)

14:00 Studies on 7Li/7Be + alpha resonanat scatterings

Speaker: Dr Hidetoshi Yamaguchi (CNS)

14:30 Direct Measurement of 18Ne(a,p)21Na reaction cross section with the GEM -- MSTPC

Speaker: Dr Takashi Hashimoto (CNS)

15:00 break

15:10 Experiments on rp process using Coulomb dissociation and future plan

Speaker: Dr Yasuhiro Togano (RIKEN Nishina Center)

15:40 Similarity between triple-alpha and aan reactions in supernova r-process

Speaker: Prof. Toshitaka Kajino (NAOJ)

16:10 Discussion 2