25–30 May 2025
Daejeon Convention Center (DCC)
Asia/Seoul timezone

Direct measurement of the $^{12}$C+$^{12}$C fusion reaction cross section at stellar energies

26 May 2025, 15:10
15m
Room 4: 1F #101 (DCC)

Room 4: 1F #101

DCC

Contributed Oral Presentation Nuclear Astrophysics Parallel Session

Speaker

Dr Xiaodong Tang (Institute of Modern Physics, CAS)

Description

The $^{12}$C+$^{12}$C fusion reaction plays a pivotal role in the process of stellar evolution. Despite six decades of studies, there is still a large uncertainty in the reaction rate which limits our understanding of various stellar objects, such as massive stars, type Ia supernovae, and superbursts. In this talk, I will present the preliminary results from the direct measurement of the $^{12}$C+$^{12}$C reaction, obtained by the CARFUSE (CARbon FUsion study at Stellar Energies) collaboration, in the range of E$_{\rm c.m.}$=2.3 MeV to 4.3 MeV using a novel detection system consisting of Time Project Chamber and silicon array and the intense carbon beam provided by the Low Energy high-intensity heavy-ion Accelerator Facility (LEAF) at IMP. The significant discrepancy between our direct measurements and the results derived using the THM approach highlights the need for further improvement in the indirect measurement technique. A new reaction rate is recommended based on our new measurement and the statistical model.

Primary author

Dr Xiaodong Tang (Institute of Modern Physics, CAS)

Presentation materials