论文标题
域壁和左右超对称性的域壁和CP违规：对瘦素的影响和电子EDM
Domain walls and CP violation with left right supersymmetry:implications for leptogenesis and electron EDM
论文作者
论文摘要
由于我们无法将早期宇宙过程中涉及的参数与低能或对撞机可观察到的参数联系起来，因此很难验证低尺度的静脉生成方案。在这里，我们表明，可以原则上可以将参数与参与瘦素发生的瞬时$ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp $ cp的发生有关。我们在左右右对称超对称模型（LRSUSY）的上下文中详细介绍了此细节，该模型（LRSUSY）在此类参数之间提供了牢固的联系。特别是，我们表明baryon不对称要求意味着$ u（1）_ {b-l} $ symmetry breaking的比例$ m_ {b-l} $大于$ 10^{4.5}〜\ mathrm {gev} $。此外，$ su（2）_r $对称断裂的比例$ m_r $被严格限制，以明显低于$ m_ {b-l}^2 / m_ {ew} $。这些是考虑LRSUSY模型的参数空间的最严格约束。
Low scale leptogenesis scenarios are difficult to verify due to our inability to relate the parameters involved in the early universe processes with the low energy or collider observables. Here we show that one can in principle relate the parameters giving rise to the transient $CP$ violating phase involved in leptogenesis with those that can be deduced from the observation of electric dipole moment (EDM) of the electron. We work out the details of this in the context of the left right symmetric supersymmetric model (LRSUSY) which provides a strong connection between such parameters. In particular, we show that baryon asymmetry requirements imply the scale $M_{B-L}$ of $U(1)_{B-L}$ symmetry breaking to be larger than $10^{4.5}~\mathrm{GeV}$. Moreover the scale $M_R$ of $SU(2)_R$ symmetry breaking is tightly constrained to lie in a narrow band significantly below $M_{B-L}^2 / M_{EW}$. These are the most stringent constraints on the parameter space of LRSUSY model being considered.
