"Table 108" of "Measurements of $\pi^{\pm}$, $K^{\pm}$ and proton yields from the surface of the T2K replica target for incoming 31 GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS"

Double differential yiedls of negatively charged pions emitted from the surface of the T2K replica target, in the polar angle range from 140 to 160 mrad and in the longitudinal range from 18 to 36cm, as a function of momentum. The normalization is per proton on target.

T2K复现靶表面发射的带负电π介子的双微分产额，其极角范围为140至160毫弧度（mrad），纵向范围为18至36厘米，且为动量的函数。归一化以每入射质子为基准。