论文标题
在轻度CP量表上改善了恒星限制
Improved stellar limits on a light CP-even scalar
论文作者
论文摘要
我们从Supernova SN1987A，Sun，Sun，Red Giants（RGS）和White Dwarfs（WDS）的标准型号（SM）Higgs Boson混合了通用的Light CP-even标量场$ s $ S $ S $ S $ S $在通用光CP-eve-even call Field $ s $上的提高恒星光度限制。我们首次包括恒星内部$ s $颗粒的衰减和吸收的几何效应。对于SN1987A和The Sun，我们还考虑了详细的恒星概况。我们发现，我们更新的天体物理约束可以排除广泛的标量质量和混合角度。例如，SN1987A不包括$ 1.0 \ times10^{ - 7} \ sinsim \sinθ\sinsθ\ simsim 3.0 \ times 10^{ - 5} $和标量质量高达219 meV，涵盖了宇宙学盲点，并具有较高的重新加热温度。更新的太阳限制不包括$ 1.5 \ times 10^{ - 12} <\sinθ<1 $的混合角度，标量质量高达45 keV。 RG和WD限制更新为$ 5.3 \ times 10^{ - 13} <\sinθ<0.39 $和$ 2.8 \ times 10^{ - 18} <\sinθ<1.8θ<1.8 \ times 10^{ - 4} $，分别为标量质量为392 KEV和290 KEV。
We derive improved stellar luminosity limits on a generic light CP-even scalar field $S$ mixing with the Standard Model (SM) Higgs boson from the supernova SN1987A, the Sun, red giants (RGs) and white dwarfs (WDs). For the first time, we include the geometric effects for the decay and absorption of $S$ particles in the stellar interior. For SN1987A and the Sun, we also take into account the detailed stellar profiles. We find that a broad range of the scalar mass and mixing angle can be excluded by our updated astrophysical constraints. For instance, SN1987A excludes $1.0\times10^{-7} \lesssim \sinθ\lesssim 3.0\times 10^{-5}$ and scalar mass up to 219 MeV, which covers the cosmological blind spot with a high reheating temperature. The updated solar limit excludes the mixing angle in the range of $1.5\times 10^{-12} < \sinθ< 1$, with scalar mass up to 45 keV. The RG and WD limits are updated to $5.3\times 10^{-13} < \sin θ< 0.39$ and $2.8\times 10^{-18} < \sin θ< 1.8\times 10^{-4}$, with scalar mass up to 392 keV and 290 keV, respectively.
