论文标题
在碳氢化合物目标上$e_ν\ sim $ 6〜GEV的抗神经抗性式散射的高统计量测量
High-Statistics Measurement of Antineutrino Quasielastic-like scattering at $E_ν\sim$ 6~GeV on a Hydrocarbon Target
论文作者
论文摘要
我们使用中型能（Me）Numi宽波段中微子束在$<e_ν>\ sim 6 $ gev上介绍了抗中性电流的抗中性抗流式散射的横截面的测量值。横截面测量是作为纵向动量（$ p_ {||} $）和最终状态MUON的横向动量（$ p_ {t} $）的函数提出的。这项工作补充了我们先前报道的中微子通道中的高统计量测量值，并将以中微子能量（$<e_ν>$）的低能（LE）梁进行的先前的反性测量扩展到$ P_ {t} $ 2.5 gev/c。 当前的理论模型并未完全描述此先前未开发的高$ P_ {T} $区域中的数据。单个微分横截面作为四动量传输的函数（$ q^{2} _ {qe} $）现在扩展到具有高统计信息的4 GEV $^2 $。横截面作为$ q^{2} _ {qe} $的函数表明，密涅瓦协作开发的调谐模拟与低能光束测量很好地一致，这与中等能量光束测量不同意。较新的中微子交互模型（例如Genie 3曲调）可以更好地模拟高$ q^{2} _ {qe} $。
We present measurements of the cross section for anti-neutrino charged-current quasielastic-like scattering on hydrocarbon using the medium energy (ME) NuMI wide-band neutrino beam peaking at $<E_ν>\sim 6$ GeV. The cross section measurements are presented as a function of the longitudinal momentum ($p_{||}$) and transverse momentum ($p_{T}$) of the final state muon. This work complements our previously reported high statistics measurement in the neutrino channel and extends the previous anti-neutrino measurement made in the low energy (LE) beam at neutrino energy($<E_ν>$) $\sim$ 3.5 GeV to $p_{T}$ of 2.5 GeV/c. Current theoretical models do not completely describe the data in this previously unexplored high $p_{T}$ region. The single differential cross section as a function of four momentum transfer ($Q^{2}_{QE}$) now extends to 4 GeV$^2$ with high statistics. The cross section as a function of $Q^{2}_{QE}$ shows that the tuned simulations developed by the MINERvA collaboration that agreed well with the low energy beam measurements do not agree as well with the medium energy beam measurements. Newer neutrino interaction models such as the GENIE 3 tunes are better able to simulate the high $Q^{2}_{QE}$.
