部分可观测时空混沌系统的无模型预测

论文标题

部分可观测时空混沌系统的无模型预测

Results on photon-mediated dark matter-nucleus interactions from the PICO-60 C$_{3}$F$_{8}$ bubble chamber

论文作者

Ali, B., Arnquist, I. J., Baxter, D., Behnke, E., Bressler, M., Broerman, B., Chen, C. J., Clark, K., Collar, J. I., Cooper, P. S., Cripe, C., Crisler, M., Dahl, C. E., Das, M., Durnford, D., Fallows, S., Farine, J., Filgas, R., García-Viltres, A., Giroux, G., Harris, O., Hillier, T., Hoppe, E. W., Jackson, C. M., Jin, M., Krauss, C. B., Kumar, V., Laurin, M., Lawson, I., Leblanc, A., Leng, H., Levine, I., Licciardi, C., Linden, S., Mitra, P., Monette, V., Moore, C., Neilson, R., Noble, A. J., Nozard, H., Pal, S., Piro, M. -C., Plante, A., Priya, S., Rethmeier, C., Robinson, A. E., Savoie, J., Sonnenschein, A., Starinski, N., Štekl, I., Tiwari, D., Vázquez-Jáuregui, E., Wichoski, U., Zacek, V., Zhang, J.

论文摘要

储层计算是预测湍流的有力工具，其简单的架构具有处理大型系统的计算效率。然而，其实现通常需要完整的状态向量测量和系统非线性知识。我们使用非线性投影函数将系统测量扩展到高维空间，然后将其输入到储层中以获得预测。我们展示了这种储层计算网络在时空混沌系统上的应用，该系统模拟了湍流的若干特征。我们表明，使用径向基函数作为非线性投影器，即使只有部分观测并且不知道控制方程，也能稳健地捕捉复杂的系统非线性。最后，我们表明，当测量稀疏、不完整且带有噪声，甚至控制方程变得不准确时，我们的网络仍然可以产生相当准确的预测，从而为实际湍流系统的无模型预测铺平了道路。

Many compelling models predict dark matter coupling to the electromagnetic current through higher multipole interactions, while remaining electrically neutral. Different multipole couplings have been studied, among them anapole moment, electric and magnetic dipole moments, and millicharge. This study sets limits on the couplings for these photon-mediated interactions using non-relativistic contact operators in an effective field theory framework. Using data from the PICO-60 bubble chamber leading limits for dark matter masses between 2.7 GeV/c$^2$ and 24 GeV/c$^2$ are reported for the coupling of these photon-mediated dark matter-nucleus interactions. The detector was filled with 52 kg of C$_3$F$_8$ operating at thermodynamic thresholds of 2.45 keV and 3.29 keV, reaching exposures of 1404 kg-day and 1167 kg-day, respectively.

下载PDF全文

下载文献需遵守相关版权规定

论文标题