论文标题
通过从HL-LHC处的光标量量从光量标量中取代的右撇子中微子来测试SEESAW机制
Testing the seesaw mechanisms via displaced right-handed neutrinos from a light scalar at the HL-LHC
论文作者
论文摘要
我们从$ u（1）_ {b-l} $模型中的轻$ b-l $标量的衰减中调查了右中微子的对生产。 $ b-l $标量与SM Higgs混合在一起，并且物理标量必须比观察到的希格斯轻。根据I型seesaw机制，预计产生的右手中微子将是长寿的，并且在CMS/Atlas/lhcb的流离失所和延迟的lhcb上产生了可能不同的特征，以及远方检测器的签名以及包括codex-b，Facet，Facet，Faser，MoEdal-Matapp和Mathausalmapp和MathAs的时间签名。我们分析了HL-LHC的敏感性范围，用于右手中微子，质量为2.5 $ \ sim $ 30 GEV，表明可以使用CMMS/ATLAS/LHCB较低的searls和national vertex和naptra searls和national andte和national andte和national andte <$ v_ {μn} \ sim 10^{-5} $探测到$ v_ {μn} \ sim 10^{ - 5}时间拖延的瘦素搜索，到达参数空间，有趣的是I seeSAW机制。
We investigate the pair production of right-handed neutrinos from the decay of a light $B-L$ scalar in the $U(1)_{B-L}$ model. The $B-L$ scalar mixes to the SM Higgs, and the physical scalar is required to be lighter than the observed Higgs. The produced right-handed neutrinos are predicted to be long-lived according to the type-I seesaw mechanism, and yield potentially distinct signatures such as displaced vertex and time-delayed leptons at the CMS/ATLAS/LHCb, as well as signatures at the far detectors including the CODEX-b, FACET, FASER, MoEDAL-MAPP and MATHUSLA. We analyze the sensitivity reach at the HL-LHC for the right-handed neutrinos with masses of 2.5 $\sim$ 30 GeV, showing that the active-sterile mixing to muons can be probed to $V_{μN} \sim 10^{-5}$ at the CMS/ATLAS/LHCb using the displaced vertex searches, and one magnitude lower at the MATHUSLA/CMS using time-delayed leptons searches, reaching the parameter space interesting for type-I seesaw mechanisms.
