Neutrinos and Nuclear Astrophysics at LUNA

被引：2

作者：

Gustavino, Carlo ^{[1
]}

机构：

[1] INFN, Sez Roma, I-00185 Rome, Italy

来源：

NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS | 2016年 / 273卷

关键词：

BBN; neutrino; Nuclear astrophysics; 1ST MEASUREMENT; CROSS-SECTION; SOLAR; N-14(P;

D O I：

10.1016/j.nuclphysbps.2015.09.291

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Nuclear astrophysics plays an important role in understanding open issues of neutrino physics. As an example, the two key reactions of the solar p-p chain He-3(He-3, 2p)He-4 and He-3(He-4, gamma)Be-7 have been studied at low energy with LUNA, providing an accurate experimental footing for the Standard Solar Model and consequently to study the neutrino mixing parameters. The LUNA collaboration is now studying the D(p, gamma)He-3 reaction at Big Bang Nucle-synthesis (BBN) energies. The poor knowledge of this reaction is the main source of the uncertainty of the primordial abundance of deuterium in BBN calculations. In turn, the abundance of deuterium depends on the number of relativistic species existing in the early Universe, making the comparison between observed an calculated abundance of deuterium a powerful tool to constrain the existence of light sterile neutrinos or any other type of "dark radiation".

引用

页码：1807 / 1813

页数：7

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