标准模型的希格斯扩展中 A0 → ℓℓV 与 ≡ e, μ 和 V ≡ γ, Z 的一回路贡献

IF 3.5 4区物理与天体物理 Q1 Physics and Astronomy

Progress of Theoretical and Experimental Physics Pub Date : 2024-07-05 DOI:10.1093/ptep/ptae103

Khiem Hong Phan, Dzung Tri Tran, Thanh Huy Nguyen

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引用次数: 0

摘要

我们提出了 CP-odd 希格斯粒子 $A^0 \rightarrow \ell \bar{\ell } 的衰变一回路公式。V$ ，其中ℓ ≡ e, μ 和 V ≡ γ, Z 在标准模型的希格斯扩展模型中，考虑了带有额外复数（和实数）标量的两个希格斯双t模型、两个希格斯双t模型以及三重希格斯模型。一回路振幅的分析结果是按照 LoopTools 的标准符号用基本帕萨里诺-韦尔曼函数表示的。因此，使用该软件包可以数值生成物理结果。在现象学结果中，分析了两个典型模型（如两个希格斯双t模型和三重希格斯模型）的总衰变宽度和与轻子对不变质量有关的差分衰变率。

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One-loop contributions for A0 → ℓℓV with ℓ ≡ e, μ and V ≡ γ, Z in higgs extensions of the standard model

We present one-loop formulas for the decay of CP-odd Higgs $A^0 \rightarrow \ell \bar{\ell } V$ with ℓ ≡ e, μ and V ≡ γ, Z in Higgs Extensions of the Standard Model, considering two higgs doublet model with an extra complex (and real) scalar, two higgs doublet model as well as triplet higgs model. Analytic results for one-loop amplitudes are expressed in terms of the basic Passarino-Veltman functions following the standard notations of LoopTools. As a result, physical results can be generated numerically by using the package. In phenomenological results, the total decay widths and the differential decay rates with respect to the invariant mass of lepton pair are analyzed for two typical models such as two higgs doublet model and triplet higgs model.

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来源期刊

Progress of Theoretical and Experimental Physics PHYSICS, MULTIDISCIPLINARY-PHYSICS, PARTICLES & FIELDS

CiteScore

12.00

自引率

5.70%

发文量

148

审稿时长

17 weeks

期刊介绍： Progress of Theoretical and Experimental Physics (PTEP) is an international journal that publishes articles on theoretical and experimental physics. PTEP is a fully open access, online-only journal published by the Physical Society of Japan. PTEP is the successor to Progress of Theoretical Physics (PTP), which terminated in December 2012 and merged into PTEP in January 2013. PTP was founded in 1946 by Hideki Yukawa, the first Japanese Nobel Laureate. PTEP, the successor journal to PTP, has a broader scope than that of PTP covering both theoretical and experimental physics. PTEP mainly covers areas including particles and fields, nuclear physics, astrophysics and cosmology, beam physics and instrumentation, and general and mathematical physics.