对与标准模型粒子有树级耦合的 $\Delta L=2$ 矢量玻色子的限制
高能物理 - 唯象学
2025-04-15 v2
摘要
我们研究了在标准模型 (SM) 乘积规范群 S U ( 3 ) C SU(3)_C S U ( 3 ) C S U ( 2 ) L SU(2)_L S U ( 2 ) L U ( 1 ) Y U(1)_Y U ( 1 ) Y ( 1 , 2 , − 3 / 2 ) (1, 2, -3/2) ( 1 , 2 , − 3/2 ) V V V V V V Δ L = 2 \Delta L = 2 Δ L = 2 l α − → l β + l ρ − l σ − l_\alpha^{-} \to l_\beta^{+} l_\rho^{-} l_\sigma^{-} l α − → l β + l ρ − l σ − e − e + → l − l + e^- e^+ \to l^- l^+ e − e + → l − l + l i → l j γ l_i \to l_j \gamma l i → l j γ V V V Y Y Y l α − → l β + l ρ − l σ − l_\alpha^{-} \to l_\beta^{+} l_\rho^{-} l_\sigma^{-} l α − → l β + l ρ − l σ − ∣ Y e e Y μ e ∗ ∣ < 3.29 × 10 − 11 ( m V / G e V ) 2 \left|Y_{e e} Y^{*}_{\mu e}\right| < 3.29 \times 10^{-11}\left(m_{V}/ \mathrm{GeV}\right)^{2} Y ee Y μ e ∗ < 3.29 × 1 0 − 11 ( m V / GeV ) 2 ∣ Y e e Y e μ ∗ ∣ < 3.29 × 10 − 11 ( m V / G e V ) 2 \left|Y_{e e} Y^{*}_{e \mu}\right| < 3.29 \times 10^{-11}\left(m_{V}/ \mathrm{GeV}\right)^{2} Y ee Y e μ ∗ < 3.29 × 1 0 − 11 ( m V / GeV ) 2 l i → l j γ l_i \to l_j \gamma l i → l j γ ∣ Y τ e Y μ τ ∗ ∣ < 3.46 × 10 − 12 ( m V / G e V ) 2 \left|Y_{\tau e}Y_{\mu\tau}^{*}\right|<3.46\times10^{-12}(m_{V}/ \mathrm{GeV})^2 Y τ e Y μτ ∗ < 3.46 × 1 0 − 12 ( m V / GeV ) 2 ∣ Y e τ Y τ μ ∗ ∣ < 3.46 × 10 − 12 ( m V / G e V ) 2 \left|Y_{e \tau}Y_{\tau \mu}^{*}\right|<3.46\times10^{-12}\left(m_{V}/ \mathrm{GeV}\right)^2 Y e τ Y τ μ ∗ < 3.46 × 1 0 − 12 ( m V / GeV ) 2
引用
@article{arxiv.2503.18591,
title = {Constraints on $\Delta L=2$ Vector Bosons with Tree Couplings to SM Particles},
author = {Zhong-Lv Huang and Xiao-Gang He},
journal= {arXiv preprint arXiv:2503.18591},
year = {2025}
}
备注
12 pages, 2 figures