Dynamical breaking of weak interaction symmetries
Dynamical breaking of weak interaction symmetries
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DOI：
10.1016/0370-2693(80)90065-9
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发表时间：
1980-02
影响因子：
4.4
通讯作者：
E. Eichten;K. Lane
中科院分区：
文献类型：
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作者：
E. Eichten;K. Lane
一个实际的动态破缺弱相互作用理论不仅需要费米子在1tev下具有新的强相互作用，而且需要额外的规范耦合来明确破缺夸克和轻子的手性对称性。这种“横向”规范相互作用将轻费米子与1tev费米子连接起来，很可能也将它们自己连接起来。它在100 TeV附近被动态分解为包含1 TeV相互作用的子群。该动力学方案经过了明确的低能测试：(1)带电和中性无自旋伪戈德斯通玻色子，期望质量在10 ~ 40gev之间；带电粒子在e+e−湮灭中很容易被探测到。(2)改变味道的中性电流相互作用，介导罕见的衰变，其速率远低于目前的上限。
A realistic theory of dynamically broken weak interactions not only requires fermions with a new strong interaction at 1 TeV, but also additional gauge couplings which explicitly break quark and lepton chiral symmetries. This “sideways” gauge interaction connects light fermions to the 1 TeV fermions and, very likely, to themselves as well. It is dynamically broken near 100 TeV to a subgroup containing the 1 TeV interactions. This dynamical scheme is subject to definite low- energy tests: (1) Charged and neutral spinless pseudo-Goldstone bosons with mass expected between 10 and 40 GeV; the charged ones are readily detectible in e+e−annihilation. (2) Flavor-changing neutral-current interactions which mediate rare decays at rates not far below present upper limits.