论文标题
探测未来MUON COLLIDERS III型Seesaw机制的重型三胞胎
Probing heavy triplet leptons of the type-III seesaw mechanism at future muon colliders
论文作者
论文摘要
我们在未来的高能和高亮度粘液墙面上研究了重型三胞胎在III型Seesaw机制中的搜索潜力。在中微子参数以及III型Seesaw型重叶子的衰减模式上考虑了最新中微子振荡结果的影响。 CASA-IBARRA参数化中具有对角统一基质的三个重型瘦素可以在其衰减模式中区分。我们考虑通过$μ^+μ^ - $ nihihihihitation和vector玻色子融合（VBF）流程的两种带电的三重型瘦素的生产。 Electroweak Parton分布功能的前阶框架用于计算VBF横截面。可以对$ \ sim 1 $ tev的质量进行探测带电的三胞胎瘦素。 $ e^+e^ - \ to zz \ ell^+\ ell^ - $通道可以进一步用于完全重建三个三胞胎lept子并区分中微子质量模式。重型中微子$ n $和相关的生产$ e^\ pm n $仅由VBF流程引起，并导致Lepton-number-Affiolating（LNV）签名。我们还使用$ \ sqrt {s} = 30 $ tev研究了未来高能量撞机器的LNV流程的搜索潜力。
We study the search potential of heavy triplet leptons in Type III Seesaw mechanism at future high-energy and high-luminosity muon colliders. The impact of up-to-date neutrino oscillation results is taken into account on neutrino parameters and the consequent decay patterns of heavy leptons in Type III Seesaw. The three heavy leptons in the Casas-Ibarra parametrization with diagonal unity matrix are distinguishable in their decay modes. We consider the pair production of charged triplet leptons $E^+ E^-$ through both $μ^+μ^-$ annihilation and vector boson fusion (VBF) processes. The leading-order framework of electroweak parton distribution functions are utilized to calculate the VBF cross sections. The charged triplet leptons can be probed for masses above $\sim 1$ TeV. The $E^+E^-\to ZZ\ell^+\ell^-$ channel can be further utilized to fully reconstruct the three triplet leptons and distinguish neutrino mass patterns. The pair production of heavy neutrinos $N$ and the associated production $E^\pm N$ are only induced by VBF processes and lead to lepton-number-violating (LNV) signature. We also study the search potential of LNV processes at future high-energy muon collider with $\sqrt{s}=30$ TeV.
