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arXiv 1701.01191hep-ph
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电弱多重态中的重夸克

Heavy quarks within the electroweak multiplet

J. Besprosvany, R. Romero

摘要:

标准模型场及其相关的电弱拉格朗日量等价地表示在一个共享的自旋基础。标量-矢量项是用标量算符分量作用于夸克偶极元来表示的,并且是参数化不变的。在获得真空期望值$v$后,这些项以及t夸克和b夸克汤川项通过识别作用于其他场的共同产生质量的希格斯粒子而联系起来。因此,通常的矢量质量与费米子的质量有关,t夸克质量$m_t$与关系式$m^2_t+m^2_b=v^2/2$固定,或者对于最大等级,或者给定b夸克质量$m_b$,意味着$m_t \simeq 173.9$ GeV,对于$v=246$ GeV。一个求和规则,推导出所有的夸克质量,推广这一限制。一种解释是,电弱玻色子和重夸克属于多重态。

英文摘要:

Standard-model fields and their associated electroweak Lagrangian are equivalently expressed in a shared spin basis. The scalar-vector terms are written with scalar-operator components acting on quark-doublet elements, and shown to be parametrization-invariant. Such terms, and the t- and b-quark Yukawa terms are linked by the identification of the common mass-generating Higgs operating upon the other fields, after acquiring a vacuum expectation value $v$. Thus, the customary vector masses are related to the fermions', fixing the t-quark mass $m_t$ with the relation $m^2_t+m^2_b=v^2/2$ either for maximal hierarchy, or given the b-quark mass $m_b$, implying $m_t \simeq 173.9$ GeV, for $v=246$ GeV. A sum rule is derived for all quark masses that generalizes this restriction. An interpretation follows that electroweak bosons and heavy quarks belong in a multiplet.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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