The electroweak monopole–antimonopole pair in the standard model

IF 2.4 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Communications in Theoretical Physics Pub Date : 2024-02-28 DOI:10.1088/1572-9494/ad23dd

Dan Zhu, Khai-Ming Wong, Guo-Quan Wong

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Abstract

We present the first numerical solution that corresponds to a pair of Cho–Maison monopoles and antimonopoles (MAPs) in the SU(2) × U(1) Weinberg–Salam (WS) theory. The monopoles are finitely separated, while each pole carries a magnetic charge ±4π/e. The positive pole is situated in the upper hemisphere, whereas the negative pole is in the lower hemisphere. The Cho–Maison MAP is investigated for a range of Weinberg angles,

0.4675≤tanθW≤10

, and Higgs self-coupling, 0 ≤ β ≤ 1.7704. The magnetic dipole moment (μ _m) and pole separation (d _z) of the numerical solutions are calculated and analyzed. The total energy of the system, however, is infinite due to point singularities at the locations of monopoles.

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标准模型中的电弱单极子-反单极子对

我们首次提出了与 SU(2) × U(1) 温伯格-萨拉姆（WS）理论中一对 Cho-Maison 单极和反单极（MAPs）相对应的数值解。单极是有限分离的，而每个极都带有±4π/e的磁荷。正极位于上半球，而负极位于下半球。在温伯格角（0.4675≤tanθW≤10）和希格斯自耦合（0≤β≤1.7704）的范围内，研究了乔-迈松 MAP。计算并分析了数值解的磁偶极矩（μm）和磁极分离（dz）。然而，由于单极位置的点奇异性，系统的总能量是无限的。

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来源期刊

Communications in Theoretical Physics 物理-物理：综合

CiteScore

5.20

自引率

3.20%

发文量

6110

审稿时长

4.2 months

期刊介绍： Communications in Theoretical Physics is devoted to reporting important new developments in the area of theoretical physics. Papers cover the fields of: mathematical physics quantum physics and quantum information particle physics and quantum field theory nuclear physics gravitation theory, astrophysics and cosmology atomic, molecular, optics (AMO) and plasma physics, chemical physics statistical physics, soft matter and biophysics condensed matter theory others Certain new interdisciplinary subjects are also incorporated.