Same-Sign Tetralepton Signature in Type-II Seesaw at Lepton Colliders

Same-Sign Tetralepton Signature in Type-II Seesaw at Lepton Colliders
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轻子对撞机的 II 型跷跷板中的同符号四轻子签名

DOI:
10.1088/1674-1137/ac2ed1
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发表时间:
2021
期刊:
影响因子:
3.6
通讯作者:
Z. Meng
Z. Meng
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
X. Bai;Zhi;Yi Jin 金毅;Hong;Z. Meng

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通过中性希格斯玻色子及其级联衰变到带电希格斯玻色子的混合产生的同号四轻子信号是具有质量谱的II型跷跷板模型中的一个独特信号。在这项研究中,我们将在未来的轻子对撞机,如ILC、CLIC和MUC中研究这一特征。在大型强子对撞机上对双电荷标量的直接搜索将GeV排除在衰变模式之外。因此,我们选择了GEV作为我们的基准场景。受直接搜索的限制,是TeV ILC中唯一可行的GEV衰变模式。在积分光度的情况下,有希望的区域大约有150个信号事件,对应于GeV范围内的一个窄带。同时,对于TeV CLIC上的GeV,可以使用产生大约10个信号事件。对于较重的三重标量GeV,虽然允许衰变模式,但级联衰变被抑制。最大事件数可在大约GeV时获得,对于GeV,可在TeV CLIC处获得。最后,我们发现这个签名在TeV MUC上对GeV来说并不是很有希望。基于基准场景,我们还研究了该签名的可观性。在这种模式下,人们可以在未来的轻子对撞机上探测GeV。
The same-sign tetralepton signature via the mixing of neutral Higgs bosons and their cascade decays to charged Higgs bosons is a unique signal in the type-II seesaw model with the mass spectrum . In this study, we investigate this signature at future lepton colliders, such as the ILC, CLIC, and MuC. Direct searches for doubly charged scalar at the LHC have excluded GeV in the decay mode. Therefore, we choose GeV as our benchmark scenarios. Constrained by direct search, is the only viable decay mode for GeV at the TeV ILC. With an integrated luminosity , the promising region, with approximately 150 signal events, corresponds to a narrow band in the range of GeV. Meanwhile, for GeV at the TeV CLIC, approximately 10 signal events can be produced with . For heavier triplet scalars GeV, although the decay mode is allowed, the cascade decays are suppressed. A maximum event number can be obtained at approximately GeV and for GeV with at the TeV CLIC. Finally, we find that this signature is not promising for GeV at the TeV MuC. Based on the benchmark scenarios, we also study the observability of this signature. In the mode, one can probe GeV at future lepton colliders.
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
Sumimoto H;Minakami R;Miyano K
通讯作者: Miyano K