Electroweak symmetry breaking, flavour physics and ultralight Dark Matter

已知基本粒子的质量谱跨越12个数量级，从亚ev中微子质量到重口味和希格斯粒子，而未知的粒子暗物质可能比顶夸克重几个数量级，或者比中微子轻近20个数量级。然而，这些质量中最高的质量仍然比普朗克质量低15个数量级，在那里应该出现新的状态，以使引力保持一致。在这种规模差距的背后，或者在这些行业中的任何一个行业内部，是否存在着隐藏的结构？然而，大的图景只能从小的方面开始，所以博士生将开始致力于以下任何项目：i)电弱对称破缺和希格斯粒子的性质；用传入的数据表征在LHC发现的标量粒子，并利用有效场理论来确定它作为基本粒子的行为有多接近；ii)标准模型粒子的味道；研究可能的潜在对称性，以解释费米子的世代结构并得出现象学结果，无论它是使用有效场论还是测量味道的模型；iii)搜索超轻暗物质；研究非常精确的量子设备，如共磁强计和原子钟在寻找暗物质方面的覆盖范围，暗物质如此之轻，以至于它的行为就像我们周围的背景场一样；iv)引力的紫外线完成；利用壳层上自旋J交换的幅度的基础，在数值上搜索引力单一化的解决方案，以及使用自下而上的方法来推导新态光谱的一致性约束。位于达勒姆的粒子物理现象学研究所(IPPP)在超越标准模型的物理学理论方面及其现象学特征方面拥有杰出的专业知识，是这一雄心勃勃的项目的理想场所。

The mass spectrum of known elementary particles spans 12 orders of magnitude from sub eV neutrino masses to the heavy flavours and the Higgs whereas the unknown, particle dark matter, could be orders of magnitude heavier than the top quark or lighter than neutrinos by almost 20 orders of magnitude. Yet the highest of these masses still lies 15 orders of magnitude below the Planck mass where new states should arise to render gravity consistent. Is there a hidden structure behind this disparity of scales or within any of these sectors? The big picture however can only be addressed starting small and so PhD students would begin dedicated to any of the following projects: i) electroweak symmetry breaking and the nature of the Higgs; characterize the scalar particle found at LHC with the incoming data and making use of effective field theory to determine how closely it behaves as elementary ii) the flavour of standard model particles; study possible underlying symmetries to explain the generational structure of fermions and derive phenomenological consequences be it with effective field theory or models of gauged flavour iii) searches for ultralight dark-matter; study the reach of very precise quantum devices like co-magnetometers and atomic clocks in the search for dark matter so light that it behaves like a background field around us iv) the UV completion of gravity; making use of the basis for amplitudes of on-shell spin J exchange search numerically for solutions to the unitarization of gravity, as well as using a bottom-up approach in deriving consistency constraints on the spectrum of new states. The Institute for Particle Physics Phenomenology (IPPP) in Durham, has an outstanding expertise in the theoretical aspects of physics beyond the Standard Model and on its phenomenological signatures and it is an ideal place for this ambitious project.