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arXiv 1104.1387hep-ph
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具有非全纯R宇称破坏的共振光生和LHC唯象

Resonant Leptogenesis with nonholomorphic R-Parity violation and LHC Phenomenology

Joydeep Chakrabortty, Sourov Roy

摘要:

在违反R宇称的超对称模型中,轻子生成和正确的中微子质量都很难同时得到。某些软非全纯R-宇称违背项的存在有助于解决这个问题。我们考虑的情况下,最轻和第二轻的中性伴子几乎简并的质量和足够的CP-不对称性可以通过共振leptogenesis产生。在这个模型中,较轻的电荷伴子和最轻的中性伴子都是高度简并的。我们有相对较轻的高吉诺,它可以在大型强子对撞机上产生,导致严重电离的带电轨道。同时,该模型也可以产生正确的中微子质量标度。因此,我们的方案是现象丰富和可测试的对撞机。

英文摘要:

In R-parity violating supersymmetric models both leptogenesis and the correct neutrino masses are hard to achieve together. The presence of certain soft nonholomorphic R-parity violating terms helps to resolve this problem. We consider a scenario where the lightest and the second-lightest neutralino are nearly degenerate in mass and enough CP-asymmetry can be produced through resonant leptogenesis. In this model, the lighter chargino and the lightest neutralino are highly degenerate. We have relatively lighter gauginos which can be produced at the LHC leading to heavily ionizing charged tracks. At the same time this model can also generate the correct neutrino mass scale. Thus our scenario is phenomenologically rich and testable at colliders.

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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