使用核乳液检测器，首先测量$ \barν_μ$和$ν_μ$充电在水上进行的含有包含的相互作用

论文标题

使用核乳液检测器，首先测量$ \barν_μ$和$ν_μ$充电在水上进行的含有包含的相互作用

First measurement of $\barν_μ$ and $ν_μ$ charged-current inclusive interactions on water using a nuclear emulsion detector

论文作者

Hiramoto, A., Suzuki, Y., Ali, A., Aoki, S., Berns, L., Fukuda, T., Hanaoka, Y., Hayato, Y., Ichikawa, A. K., Kawahara, H., Kikawa, T., Koga, T., Komatani, R., Komatsu, M., Kosakai, Y., Matsuo, T., Mikado, S., Minamino, A., Mizuno, K., Morimoto, Y., Morishima, K., Naganawa, N., Naiki, M., Nakamura, M., Nakamura, Y., Nakano, N., Nakano, T., Nakaya, T., Nishio, A., Odagawa, T., Ogawa, S., Oshima, H., Rokujo, H., Sanjana, I., Sato, O., Shibuya, H., Sugimura, K., Suzui, L., Takagi, H., Takao, T., Tanihara, Y., Yasutome, K., Yokoyama, M.

论文摘要

本文报告了来自带电电流的包含$ \barν_μ$和水靶上的$ ninja实验中的核乳液检测器测量的哑光乳头和质子的轨道多重性和运动学。将一个3公斤的水靶暴露于平均能量为1.3 GEV的T2K抗神经增强梁。由于核乳液的高粒度，从中微 - 水相互作用中质量下降至200 meV/$ c $。我们发现，除了带电亲的数量以外，观察到的数据和模型预测之间的良好一致性。这些结果证明了用核乳液改善中微子相互作用模型的测量能力。

This paper reports the track multiplicity and kinematics of muons, charged pions, and protons from charged-current inclusive $\barν_μ$ and $ν_μ$ interactions on a water target, measured using a nuclear emulsion detector in the NINJA experiment. A 3-kg water target was exposed to the T2K antineutrino-enhanced beam with a mean energy of 1.3 GeV. Owing to the high-granularity of the nuclear emulsion, protons with momenta down to 200 MeV/$c$ from the neutrino-water interactions were detected. We find good agreement between the observed data and model predictions for all kinematic distributions other than the number of charged pions. These results demonstrate the capability of measurements with nuclear emulsion to improve neutrino interaction models.

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