论文标题
非标准相干中微子核散射的天体物理限制
Astrophysical constraints on non-standard coherent neutrino-nucleus scattering
论文作者
论文摘要
可以触及使用连贯的中微子核散射探测器的超新星，太阳能和大气中微子的令人兴奋的可能性，开辟了新的途径来探测新的物理学。我们探讨了通过天体物理中微子来限制非标准相干核核的可能性。通过检查即将到来的RES-Nova和Darwin设施中可观察到的后坐力速率所引起的修改，获得了新调解人质量和耦合的敏感性界限。在最佳背景标签的假设下，从银河系超新星爆发中检测中微子，或对太阳和大气中微子的一年暴露，将在中介耦合$ g \ gtrsim 10^{ - 5} $和1和100 mEV之间的最严格的界限。对于更大的调解人质量，将提供类似但略有改善的连贯潜力。特别是，与介体耦合上的Xenon1t相比，Res-Nova和Darwin可能会提供一个更严格的限制顺序。非标准的相干中微子核散射也可能迫使中微子被困在超新星核心中。该参数允许使用$ g \ gtrsim 10^{ - 4} $探测参数空间的区域，该区域目前被其他连贯的中微子核散射设施或其他天体物理和陆地限制所排除。
The exciting possibility of detecting supernova, solar, and atmospheric neutrinos with coherent neutrino-nucleus scattering detectors is within reach, opening up new avenues to probe New Physics. We explore the possibility of constraining non-standard coherent neutrino-nucleus scattering through astrophysical neutrinos. Sensitivity bounds on the mass and coupling of the new mediator are obtained by inspecting the modifications induced by the new interaction on the recoil rate observable in the upcoming RES-NOVA and DARWIN facilities. Under the assumption of optimal background tagging, the detection of neutrinos from a galactic supernova burst, or one-year exposure to solar and atmospheric neutrinos, will place the most stringent bounds for mediator couplings $g \gtrsim 10^{-5}$ and mediator masses between 1 and 100 MeV. A similar, but slightly improved, potential to COHERENT will be provided for larger mediator masses. In particular, RES-NOVA and DARWIN may potentially provide one order of magnitude tighter constraints than XENON1T on the mediator coupling. Non-standard coherent neutrino-nucleus scattering may also force neutrinos to be trapped in the supernova core; this argument allows to probe the region of the parameter space with $g \gtrsim 10^{-4}$, which is currently excluded by other coherent neutrino-nucleus scattering facilities or other astrophysical and terrestrial constraints.
