利用MicroBooNE探测器首次测量微分带电流类准弹性νμ-氩散射截面。
First Measurement of Differential Charged Current Quasielasticlike ν_{μ}-Argon Scattering Cross Sections with the MicroBooNE Detector.
作者信息
Abratenko P, Alrashed M, An R, Anthony J, Asaadi J, Ashkenazi A, Balasubramanian S, Baller B, Barnes C, Barr G, Basque V, Bathe-Peters L, Benevides Rodrigues O, Berkman S, Bhanderi A, Bhat A, Bishai M, Blake A, Bolton T, Camilleri L, Caratelli D, Caro Terrazas I, Castillo Fernandez R, Cavanna F, Cerati G, Chen Y, Church E, Cianci D, Cohen E O, Conrad J M, Convery M, Cooper-Troendle L, Crespo-Anadón J I, Del Tutto M, Devitt D, Diurba R, Domine L, Dorrill R, Duffy K, Dytman S, Eberly B, Ereditato A, Escudero Sanchez L, Evans J J, Fiorentini Aguirre G A, Fitzpatrick R S, Fleming B T, Foppiani N, Franco D, Furmanski A P, Garcia-Gamez D, Gardiner S, Gollapinni S, Goodwin O, Gramellini E, Green P, Greenlee H, Gu L, Gu W, Guenette R, Guzowski P, Hall E, Hamilton P, Hen O, Horton-Smith G A, Hourlier A, Huang E-C, Itay R, James C, Jan de Vries J, Ji X, Jiang L, Jo J H, Johnson R A, Jwa Y-J, Kamp N, Karagiorgi G, Ketchum W, Kirby B, Kirby M, Kobilarcik T, Kreslo I, LaZur R, Lepetic I, Li K, Li Y, Littlejohn B R, Lorca D, Louis W C, Luo X, Marchionni A, Marcocci S, Mariani C, Marsden D, Marshall J, Martin-Albo J, Martinez Caicedo D A, Mason K, Mastbaum A, McConkey N, Meddage V, Mettler T, Miller K, Mills J, Mistry K, Mogan A, Mohayai T, Moon J, Mooney M, Moor A F, Moore C D, Mousseau J, Murphy M, Naples D, Navrer-Agasson A, Neely R K, Nienaber P, Nowak J, Palamara O, Paolone V, Papadopoulou A, Papavassiliou V, Pate S F, Paudel A, Pavlovic Z, Piasetzky E, Ponce-Pinto I D, Porzio D, Prince S, Qian X, Raaf J L, Radeka V, Rafique A, Reggiani-Guzzo M, Ren L, Rochester L, Rodriguez Rondon J, Rogers H E, Rosenberg M, Ross-Lonergan M, Russell B, Scanavini G, Schmitz D W, Schukraft A, Shaevitz M H, Sharankova R, Sinclair J, Smith A, Snider E L, Soderberg M, Söldner-Rembold S, Soleti S R, Spentzouris P, Spitz J, Stancari M, John J St, Strauss T, Sutton K, Sword-Fehlberg S, Szelc A M, Tagg N, Tang W, Terao K, Thornton R T, Thorpe C, Toups M, Tsai Y-T, Tufanli S, Uchida M A, Usher T, Van De Pontseele W, Van de Water R G, Viren B, Weber M, Wei H, Williams Z, Wolbers S, Wongjirad T, Wospakrik M, Wu W, Yang T, Yarbrough G, Yates L E, Zeller G P, Zennamo J, Zhang C
机构信息
Tufts University, Medford, Massachusetts 02155, USA.
Kansas State University (KSU), Manhattan, Kansas 66506, USA.
出版信息
Phys Rev Lett. 2020 Nov 13;125(20):201803. doi: 10.1103/PhysRevLett.125.201803.
We report on the first measurement of flux-integrated single differential cross sections for charged-current (CC) muon neutrino (ν_{μ}) scattering on argon with a muon and a proton in the final state, ^{40}Ar (ν_{μ},μp)X. The measurement was carried out using the Booster Neutrino Beam at Fermi National Accelerator Laboratory and the MicroBooNE liquid argon time projection chamber detector with an exposure of 4.59×10^{19} protons on target. Events are selected to enhance the contribution of CC quasielastic (CCQE) interactions. The data are reported in terms of a total cross section as well as single differential cross sections in final state muon and proton kinematics. We measure the integrated per-nucleus CCQE-like cross section (i.e., for interactions leading to a muon, one proton, and no pions above detection threshold) of (4.93±0.76_{stat}±1.29_{sys})×10^{-38} cm^{2}, in good agreement with theoretical calculations. The single differential cross sections are also in overall good agreement with theoretical predictions, except at very forward muon scattering angles that correspond to low-momentum-transfer events.
我们报告了对末态有一个μ子和一个质子的带电流（CC）μ子中微子（νμ）与氩核散射，即40Ar（νμ，μp）X的通量积分单微分截面的首次测量。该测量使用了费米国家加速器实验室的助推中微子束以及MicroBooNE液态氩时间投影室探测器，靶上质子曝光量为4.59×10^19 。选择事例以增强CC类弹性（CCQE）相互作用的贡献。数据以总截面以及末态μ子和质子运动学的单微分截面形式给出。我们测量的每核CCQE类积分截面（即对于导致一个μ子、一个质子且无高于探测阈值的π介子的相互作用）为（4.93±0.76统计±1.29系统）×10^-38 cm^2，与理论计算结果吻合良好。单微分截面总体上也与理论预测相符，但在对应于低动量转移事例的非常前向的μ子散射角处除外。
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