One-loop matching of the type-II seesaw model onto the Standard Model effective field theory
文献类型：期刊论文
| 作者 | Li, X ; Zhang, D; Zhou, S
|
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2022 |
| 期号 | 4页码:38 |
| 关键词 | Effective Field Theories Multi-Higgs Models SMEFT |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP04(2022)038 |
| 文献子类 | Article |
| 英文摘要 | In this paper, we continue to construct the low-energy effective field theories (EFTS) of the canonical seesaw models, which are natural extensions of the Standard Model (SM) to accommodate tiny but nonzero neutrino masses. Different from three right-handed neutrino singlets in the type-I seesaw model, the Higgs triplet in the type-II seesaw model participates directly in the electroweak gauge interactions, rendering the EFT construction more challenging. By integrating out the heavy Higgs triplet in the functional-integral formalism, we carry out a complete one-loop matching of the type-II seesaw model onto the so-called Standard Model Effective Field Theory (SMEFT). It turns out that 41 dimension-six operators (barring flavor structures and Hermitian conjugates) in the Warsaw basis of the SMEFT can be obtained, covering all those 31 dimension-six operators in the case of type-I seesaw model. The Wilson coefficients for 41 dimension-six operators are computed up to O(M-Delta(-2)) with M-Delta being the mass scale of the Higgs triplet. Moreover, the branching ratios of rare radiative decays of charged leptons l(alpha)(-) -> L-beta(-) + gamma are calculated in the EFT and compared with that in the full theory in order to demonstrate the practical application and the correctness of our EFT construction. |
| 语种 | 英语 |
| WOS记录号 | WOS:000780301400001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299664]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li, X,Zhang, D,Zhou, S. One-loop matching of the type-II seesaw model onto the Standard Model effective field theory[J]. JOURNAL OF HIGH ENERGY PHYSICS,2022(4):38. |
| APA | Li, X,Zhang, D,&Zhou, S.(2022).One-loop matching of the type-II seesaw model onto the Standard Model effective field theory.JOURNAL OF HIGH ENERGY PHYSICS(4),38. |
| MLA | Li, X,et al."One-loop matching of the type-II seesaw model onto the Standard Model effective field theory".JOURNAL OF HIGH ENERGY PHYSICS .4(2022):38. |
入库方式： OAI收割
来源：高能物理研究所
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