SCALAR INTERACTIONS IN THE MODIFIED LEFT-RIGHT SYMMETRY MODEL

Jurnal Neutrino Pub Date : 2023-10-30 DOI:10.18860/neu.v16i1.20518

Istikomah Istikomah, Nurul Embun Isnawati, Heni Sumarti, Sheilla Rully Anggita

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Abstract

The Standard Model is a model of particle physics in which one Higgs particle has been confirmed with a mass of 126 GeV. In 2016 some discoveries made it possible to have other scalar particles similar to the Higgs. The modified left-right symmetric model extends the standard model with an expanded scalar sector. There are ϕ_L and Δ_L left sector scalar particles, ϕ_L and Δ_L right sector scalar particles and two singlet η and ξ scalar particles. Therefore, this research objective is to analyze of the possibility of a Higgs interaction with other scalar particles. The method of this research is using a Feynman diagram to describe the interaction terms at the Higgs Potential. The interaction probability is sought using the Feynman rule for Toy Theory. The decay rate uses the Golden Rule. When the universe's temperature reaches the mass of η, the scalar becomes non-relativistic and decays into ϕ_L and ϕ_R. The scalar ξ is scattered into ϕ_L through the η scalar propagator and into ϕ_R. The scalars Δ_L and Δ_R do not decay, they only scatter into ϕ_L and ϕ_R. The η and ξ scalars have transformed into ϕ_L in the left sector and ϕ_R in the right sector, and only ϕ_L in the sectors are likely to be detected as the Higgs Standard Model.

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修正左右对称模型中的标量相互作用

标准模型是粒子物理学的一个模型，其中一个希格斯粒子的质量已被证实为126gev。2016年，一些发现使得其他类似希格斯粒子的标量粒子成为可能。修正的左右对称模型对标准模型进行了扩展，增加了标量扇区。存在着左扇区标量粒子(ϕ_L和Δ_L)、右扇区标量粒子(ϕ_L和Δ_L)和两个单线态η和ξ标量粒子。因此，本研究的目的是分析希格斯粒子与其他标量粒子相互作用的可能性。本研究的方法是使用费曼图来描述希格斯势的相互作用项。利用玩具理论的费曼规则寻求相互作用的概率。衰减率遵循黄金法则。当宇宙的温度达到η的质量时，标量变为非相对论性的，并衰变为ϕ_L和ϕ_R。标量ξ通过η标量传播子散射到ϕ_L并散射到ϕ_R。标量Δ_L和Δ_R不会衰减，它们只会分散到 _l和 _r中。η和ξ标量在左扇区转化为_l，在右扇区转化为_r，只有在扇区中的_l才有可能被检测到为希格斯标准模型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Jurnal Neutrino

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