Acciarri R, Adams C, Asaadi J, Baller B, Bolton T, Bromberg C, Cavanna F, Church E, Edmunds D, Ereditato A, Farooq S, Fleming B, Greenlee H, Hatcher R, Horton-Smith G, James C, Klein E, Lang K, Laurens P, Mehdiyev R, Page B, Palamara O, Partyka K, Rameika G, Rebel B, Santos E, Schukraft A, Soderberg M, Spitz J, Szelc A M, Weber M, Yang T, Zeller G P
Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
Yale University, New Haven, Connecticut 06520, USA.
Phys Rev Lett. 2014 Dec 31;113(26):261801. doi: 10.1103/PhysRevLett.113.261801. Epub 2014 Dec 23.
We report on the first cross section measurements for charged current coherent pion production by neutrinos and antineutrinos on argon. These measurements are performed using the ArgoNeuT detector exposed to the NuMI beam at Fermilab. The cross sections are measured to be 2.6(-1.0)(+1.2)(stat)(-0.4)(+0.3)(syst)×10(-38) cm(2)/Ar for neutrinos at a mean energy of 9.6 GeV and 5.5(-2.1)(+2.6)(stat)(-0.7)(+0.6)(syst)×10(-39) cm(2)/Ar for antineutrinos at a mean energy of 3.6 GeV.
我们报告了中微子和反中微子在氩上产生带电电流相干π介子的首个截面测量结果。这些测量是使用位于费米实验室、暴露于NuMI束流的ArgoNeuT探测器进行的。对于平均能量为9.6 GeV的中微子，测量得到的截面为2.6(-1.0)(+1.2)(统计)(-0.4)(+0.3)(系统)×10(-38) 平方厘米/氩；对于平均能量为3.6 GeV的反中微子，测量得到的截面为5.5(-2.1)(+2.6)(统计)(-0.7)(+0.6)(系统)×10(-39) 平方厘米/氩。
