标题： 电弱对称破缺与非普遍标量软项及大$\tanβ$解 显示英文标题

标题： Electroweak Symmetry Breaking with Non-Universal Scalar Soft Terms and Large $\tanβ$ Solutions

摘要： 我们讨论在GUT尺度下非普遍标量质量的辐射电弱对称性破缺。详细研究了大$\tan\beta$解，并表明存在与普遍情况相比定性新的解，软项之间的相关性要小得多。我们识别了两类非普遍性，分别给出具有$A_o\simeq B_o\simeq M_{1/2}\simeq O(M_Z)$、$\mu \simeq O(0.5 m_o)$、$m_o>>M_Z$和$A_o\simeq B_o\simeq M_{1/2} \simeq\mu\simeq O(M_Z)$、$m_o\ge M_Z$的解。 在每种情况下，在施加规范和 Yukawa 耦合统一后，我们讨论对$m_t$、$m_b$和超对称粒子谱的预测。 一个显著的结果是轻带电微子和中性微子的可能性，而在第二种选项中它们可以是希格斯子型的。 还包含了对最轻中性微子的剩余丰度的宇宙学约束。 显示英文摘要

摘要： We discuss radiative electroweak symmetry breaking with non-universal scalar masses at the GUT scale. Large $\tan\beta$ solutions are investigated in detail and it is shown that qualitatively new (as compared to the universal case) solutions exist, with much less correlation between soft terms. We identify two classes of non-universalities which give solutions with $A_o\simeq B_o\simeq M_{1/2}\simeq O(M_Z)$, $\mu \simeq O(0.5 m_o)$, $m_o>>M_Z$ and $A_o\simeq B_o\simeq M_{1/2} \simeq\mu\simeq O(M_Z)$, $m_o\ge M_Z$, respectively. In each case, after imposing gauge and Yukawa coupling unification, we discuss the predictions for $m_t$, $m_b$ and the spectrum of supersymmetric particles. One striking consequence is the possibility of light charginos and neutralinos which in the second option can be higgsino-like. Cosmological constraint on the relic abundance of the lightest neutralino is also included.