项目8中微子质量实验

论文标题

项目8中微子质量实验

The Project 8 Neutrino Mass Experiment

论文作者

Project 8 Collaboration, Esfahani, A. Ashtari, Böser, S., Buzinsky, N., Carmona-Benitez, M. C., Claessens, C., de Viveiros, L., Doe, P. J., Enomoto, S., Fertl, M., Formaggio, J. A., Gaison, J. K., Grando, M., Heeger, K. M., Huyan, X., Jones, A. M., Kazkaz, K., Li, M., Lindman, A., Matthé, C., Mohiuddin, R., Monreal, B., Mueller, R., Nikkel, J. A., Novitski, E., Oblath, N. S., Peña, J. I., Pettus, W., Reimann, R., Robertson, R. G. H., Rybka, G., Saldaña, L., Schram, M., Slocum, P. L., Stachurska, J., Sun, Y. -H., Surukuchi, P. T., Tedeschi, J. R., Telles, A. B., Thomas, F., Thomas, M., Thorne, L. A., Thümmler, T., Van De Pontseele, W., VanDevender, B. A., Weiss, T. E., Wendler, T., Ziegler, A.

论文摘要

$β^ - $ tritium的$β^ - $的测量给出了中微子质量的最精确的直接限制。项目8将使用具有原子trimic源的回旋辐射发射光谱（CRE）研究中微子质量。 CRES是一种新的实验技术，它有可能克服当前产生直接测量方法的系统和统计局限性。原子trium避免了与分子trilecular腐烂相关的最终状态相关的不可还原系统不确定性。项目8将以分阶段的方法进行，以40 MeV/c $^2 $中微子质量灵敏度的目标进行。

Measurements of the $β^-$ spectrum of tritium give the most precise direct limits on neutrino mass. Project 8 will investigate neutrino mass using Cyclotron Radiation Emission Spectroscopy (CRES) with an atomic tritium source. CRES is a new experimental technique that has the potential to surmount the systematic and statistical limitations of current-generation direct measurement methods. Atomic tritium avoids an irreducible systematic uncertainty associated with the final states populated by the decay of molecular tritium. Project 8 will proceed in a phased approach toward a goal of 40 meV/c$^2$ neutrino-mass sensitivity.

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