论文标题
意向书：在J-PARC中搜索子碎片的粒子
Letter of Intent: Search for sub-millicharged particles at J-PARC
论文作者
论文摘要
我们提出了一个新的实验，对J-PARC处的$ 30 $ GEV Proton固定目标碰撞的检测敏感。该实验的潜在地点是中微子监视器大楼的B2，距离目标为280美元。使用$ \ textrm {n} _ \ textrm {pot} = 10^{22} $，实验可以对用电荷$ 3 \ times10^{ - 4} \，e $质量提供敏感性，质量小于$ 0.2 $ $ $ \ $ \ textrm {gev} $ 1.5 \ times10^{ - 3} \，e $，质量小于$ 1.6 $ $ \ textrm {gev}/\ textrm {c}^2 $。这为当前的电荷和此类粒子质量的当前限制带来了很大的扩展。
We propose a new experiment sensitive to the detection of millicharged particles produced at the $30$ GeV proton fixed-target collisions at J-PARC. The potential site for the experiment is B2 of the Neutrino Monitor building, $280$ m away from the target. With $\textrm{N}_\textrm{POT}=10^{22}$, the experiment can provide sensitivity to particles with electric charge $3\times10^{-4}\,e$ for mass less than $0.2$ $\textrm{GeV}/\textrm{c}^2$ and $1.5\times10^{-3}\,e$ for mass less than $1.6$ $\textrm{GeV}/\textrm{c}^2$. This brings a substantial extension to the current constraints on the charge and the mass of such particles.
