论文标题
$ \ \barν_μ$和$ \barν_μ +ν_μ$ $ \barν_μ$充电 - 电流横截面未检测到的乳头或质子在水和碳氢化合物上，平均抗抗抗抗碳的能量为0.86 gev
Measurements of $\barν_μ$ and $\barν_μ + ν_μ$ charged-current cross-sections without detected pions nor protons on water and hydrocarbon at mean antineutrino energy of 0.86 GeV
论文作者
论文摘要
我们报告了使用T2K抗中性能量为0.86 GEV的T2K抗中性束。该信号定义为（抗）中微子带电的相互作用，一种诱导的$μ^\ pm $，未检测到的带电亲和质子。这些测量方法是使用最近添加到T2K设置中的新的Wagasci模块与Ingrid Proton模块进行的。 Muons的相空间仅限于高检测效率区域，$p_μ> 400〜 {\ rm Mev}/c $和$θ_μ<30^{\ circ} $，在实验室框架中。在可检测的相位空间中缺少亲质和质子，“ $p_π> 200〜 {\ rm mev}/c $和$θ_π<70^{\ circ} $”和“ $ p _ {\ rm P}> 600〜 必需的。在本文中，两个$ \barν_μ$横截面和水和碳氢化合物目标上的$ \barν_μ+ν_μ$横截面，并且使用d'Agostini展开方法提供了它们的比率。在此相位空间上集成的$ \barν_μ$横截面测量值为$σ_ {\ rm h_ {2} o} \，= \，（1.082 \ pm0.068（\ rm Stat。） 10^{ - 39}〜{\ rm cm^{2}/nucleon} $，$σ_{\ rm ch} \，= \，（1.096 \ pm0.054（\ rm Stat。） 10^{ - 39}〜{\ rm cm^{2}/nucleon} $，和$σ_{\ rm h_ {2} o}/σ_{\ rm ch} = 0.987 \ pm pm0.078（\ rm Stat。 Syst。）$。 $ \barν_μ+ν_μ$横截面为$σ_ {\ rm h_ {2} o} =（1.155 \ pm0.064（\ rm Stat。）^{+0.148} _ { - 0.148} _ { - 0.129} cm^{2}/nucleon} $，$σ_{\ rm ch} \，= \，（1.159 \ pm0.049（\ rm Stat。）^{+0.129} _ { - 0.115}（ - 0.115}（ - 0.115}（ cm^{2}/nucleon} $，和$σ_{\ rm h_ {2} o}/σ_ {\ rm ch} \，= \，0.996 \ pm0.069（\ rm Stat。
We report measurements of the flux-integrated $\barν_μ$ and $\barν_μ+ν_μ$ charged-current cross-sections on water and hydrocarbon targets using the T2K anti-neutrino beam, with a mean neutrino energy of 0.86 GeV. The signal is defined as the (anti-)neutrino charged-current interaction with one induced $μ^\pm$ and no detected charged pion nor proton. These measurements are performed using a new WAGASCI module recently added to the T2K setup in combination with the INGRID Proton module. The phase space of muons is restricted to the high-detection efficiency region, $p_μ>400~{\rm MeV}/c$ and $θ_μ<30^{\circ}$, in the laboratory frame. Absence of pions and protons in the detectable phase space of "$p_π>200~{\rm MeV}/c$ and $θ_π<70^{\circ}$", and "$p_{\rm p}>600~{\rm MeV}/c$ and $θ_{\rm p}<70^{\circ}$" is required. In this paper, both of the $\barν_μ$ cross-sections and $\barν_μ+ν_μ$ cross-sections on water and hydrocarbon targets, and their ratios are provided by using D'Agostini unfolding method. The results of the integrated $\barν_μ$ cross-section measurements over this phase space are $σ_{\rm H_{2}O}\,=\,(1.082\pm0.068(\rm stat.)^{+0.145}_{-0.128}(\rm syst.)) \times 10^{-39}~{\rm cm^{2}/nucleon}$, $σ_{\rm CH}\,=\,(1.096\pm0.054(\rm stat.)^{+0.132}_{-0.117}(\rm syst.)) \times 10^{-39}~{\rm cm^{2}/nucleon}$, and $σ_{\rm H_{2}O}/σ_{\rm CH} = 0.987\pm0.078(\rm stat.)^{+0.093}_{-0.090}(\rm syst.)$. The $\barν_μ+ν_μ$ cross-section is $σ_{\rm H_{2}O} = (1.155\pm0.064(\rm stat.)^{+0.148}_{-0.129}(\rm syst.)) \times 10^{-39}~{\rm cm^{2}/nucleon}$, $σ_{\rm CH}\,=\,(1.159\pm0.049(\rm stat.)^{+0.129}_{-0.115}(\rm syst.)) \times 10^{-39}~{\rm cm^{2}/nucleon}$, and $σ_{\rm H_{2}O}/σ_{\rm CH}\,=\,0.996\pm0.069(\rm stat.)^{+0.083}_{-0.078}(\rm syst.)$.
