【摘要】 近二十多年来，太阳、大气、反应堆和加速器的中微子振荡实验提供了大量确凿的证据表明中微子有质量。然而，粒子物理学标准模型却预言中微子质量为零。这意味着中微子质量的产生必然要求引入超出标准模型的新物理。文章将介绍无中微子双贝塔衰变对新物理探索和宇宙学观测的重要影响，尤其是该稀有衰变过程的实验观测在突破粒子物理学和宇宙学标准模型的前沿研究中扮演的独一无二的角色。更多还原

【Abstract】 For more than two decades, solar, atmospheric, reactor and accelerator neutrino oscillation experiments have provided substantial evidence that neutrinos have mass.However, the Standard Model(SM) of particle physics predicts that the neutrino mass is zero.This indicates that there must be new physics beyond the SM. This article will assess the important implications of neutrinoless double-beta decays for cosmology and the quest for newphysics, especially the unique role that experimental observation of such rare decays plays in the latest research on particle physics and cosmology.更多还原