Sphalerons in two Higgs doublet theories
Sphalerons in two Higgs doublet theories
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两种希格斯双峰理论中的圆角子
DOI：
10.1103/physrevd.64.016002
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发表时间：
2001
影响因子：
5
通讯作者：
M. Hindmarsh
中科院分区：
文献类型：
--
作者：
J. Grant;M. Hindmarsh
我们全面研究了用两个希格斯双重拨动值的电牵引理论中的spheron的性质。我们尽可能地将其作为模型无关的方式：通过探索质量和混合粒子的混合角度所描述的物理参数空间。如果中性希格斯颗粒的质量有较大的分裂，则可以有几种sphaleron溶液，其特性在奇偶元中的特性和原点是希格斯场的行为。通常，这些溶液以平等共轭对出现，尽管球形对称性很小，但并非球形对称。对于给定的一组Higgs玻色子质量，在HIGGS潜力中包括违反CP的侵犯可以将Sphaleron的能量提高14％，这对最轻的Higgs玻色子的质量的baryogeneseation具有显着影响。
We undertake a comprehensive investigation of the properties of the sphaleron in electroweak theories with two Higgs doublets. We do this in as model-independent a way as possible: by exploring the physical parameter space described by the masses and mixing angles of the Higgs particles. If there is a large split in the masses of the neutral Higgs particles, there can be several sphaleron solutions, distinguished by their properties under parity and the behavior of the Higgs field at the origin. In general, these solutions appear in parity conjugate pairs and are not spherically symmetric, although the departure from spherical symmetry is small. Including CP violation in the Higgs potential can change the energy of the sphaleron by up to 14% for a given set of Higgs boson masses, with significant implications for the baryogenesis bound on the mass of the lightest Higgs boson.