検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

$$^7$$Be(n,$$alpha$$) and $$^7$$Be(n,p) cross-section measurement for the cosmological lithium problem at the n_TOF facility at CERN

リチウム問題解決のためのn_TOFでの$$^7$$Be(n,$$alpha$$), $$^7$$Be(n,p)断面積測定

Barbagallo, M.*; Colonna, N.*; Aberle, O.*; 原田 秀郎   ; 木村 敦   ; n_TOF Collaboration*; 他125名*

Barbagallo, M.*; Colonna, N.*; Aberle, O.*; Harada, Hideo; Kimura, Atsushi; n_TOF Collaboration*; 125 of others*

The Cosmological Lithium Problem refers to the large discrepancy between the abundance of primordial $$^7$$Li predicted by the standard theory of Big Bang Nucleosynthesis and the value inferred from the so-called "Spite plateau" in halo stars. A possible explanation for this longstanding puzzle in Nuclear Astrophysics is related to the incorrect estimation of the destruction rate of $$^7$$Be, which is responsible for the production of 95% of primordial Lithium. While charged-particle induced reactions have mostly been ruled out, data on the $$^7$$Be(n,$$alpha$$) and $$^7$$Be(n,p) reactions are scarce or completely missing, so that a large uncertainty still affects the abundance of $$^7$$Li predicted by the standard theory of Big Bang Nucleosynthesis. Both reactions have been measured at the n_TOF facility at CERN, providing for the first time data in a wide neutron energy range.

Access

:

- Accesses

InCites™

:

パーセンタイル:60.69

分野:Nuclear Science & Technology

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.