| Article | |
| Title | Resonance excitations in the $^{7}$Be + d experiment at CERN ISOLDE |
| Author(s) | Ali, Sk M (Bose Inst., Kolkata) ; Gupta, D (Bose Inst., Kolkata) ; Kundalia, K (Bose Inst., Kolkata) ; Saha, Swapan K (Bose Inst., Kolkata) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Ovejas, J D (Madrid, Inst. Estructura Materia) ; Perea, A (Madrid, Inst. Estructura Materia) ; Martel, I (U. Grenoble Alpes ; TIMA, Grenoble) ; Cederkall, J (Lund U.) ; Park, J (Lund U.) ; Szwec, S (Jyvaskyla U.) |
| Publication | 2019 |
| Number of pages | 2 |
| In: | DAE Symp. Nucl. Phys. 64 (2019) pp.570-571 |
| In: | 64th DAE BRNS Symposium on nuclear physics, Lucknow, Uttar Pradesh, India, 23-27 Dec 2019, pp.570-571 |
| Subject category | Nuclear Physics - Theory ; Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE |
| Abstract | The Big Bang Nucleosynthesis (BBN) theory has been very successful in predicting the observed abundances of light elements like $^2$H, ${3,4}$He. There is, however, a serious discrepancy of a factor of about four in the observed abundance of $^7$Li as compared to that predicted by the BBN theory [1−2]. The high precision measurement of the baryon to photon ratio η by the Wilkinson Microwave Anisotropy Probe (WMAP) and recent observations of metal poor halo stars shows that the $^7$Li abundance predicted by the BBN theory is about $5.12 \times 10^{10}$, whereas the observed value is about $1.23 \times 10^{10}$. This anomaly has been unsolved for decades and is well known. Several avenues have been searched for a solution, of which the resonance excitations in reactions with $^7$Be appear to be very attractive [3]. |
Corresponding record in: Inspire
记录创建於2022-10-12，最後更新在2022-10-20
