Measurement of neutrino-induced neutral-current coherent π0 production in the NOvA near detector

M. A. Acero,Philip D Adamson, L. Aliaga, T. Alion,V. Allakhverdian,Nikolay Anfimov, A. Antoshkin,E. Arrieta-Diaz,A. Aurisano, A. Back, C. Backhouse,M. Baird,N. Balashov,Pierre Baldi,Bindu A. Bambah, S. Basher, K. Bays, B. R. Behera,Simon J. Bending, Rebecca Bernstein,Vipin Bhatnagar, B. Bhuyan,Jian-Guo Bian, J. Blair,A. Booth, A. Bolshakova,P. Bour,C. Bromberg,N. J. Buchanan,Anatoly Butkevich, Mark Campbell, T. J. Carroll, E. Catano-Mur, S. Childress, B. C. Choudhary,Borun D. Chowdhury,T. E. Coan, M. Colo, L. A. Corwin,L. Cremonesi, D. Cronin-Hennessy,Gavin Davies, P. F. Derwent,P. F. Ding,Zelimir Djurcic, D. Doyle, E. C. Dukes, P. Dung, H. Duyang, S. Edayath, R. Ehrlich,G. J. Feldman, Will Flanagan, M. Frank, H. R. Gallagher, Reddy Pratap Gandrajula, F. Gao,S. Germani, A. K. Giri,R. A. Gomes, M. C. Goodman,Vladimir Grichine, M. Groh,B. Guo,Alec Habig, F. Hakl,J. Hartnell,R. Hatcher,A. Hatzikoutelis, Ken Heller, A. Himmel,A. Holin, B. Howard,Junwei Huang, J. Hylen, F. Jediny,Carl Hirschie Johnson, M. Judah,I. Kakorin,D. Kalra,Daniel M. Kaplan,R. Keloth,O.L. Klimov, L. W. Koerner,L. Kolupaeva,S. K. Kotelnikov, A. E. Kreymer,Ch. Kullenberg,Ajay Kumar,C. Kuruppu,Vlastimil Kus, T. Lackey,Karol Lang,Simon Lin,Milos Lokajicek, J. Lozier, Stanislav Luchuk,K. Maan, S. Magill,W. A. Mann

Physical Review D（2020）

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摘要

The cross section of neutrino-induced neutral-current coherent π0 production on a carbon-dominated target is measured in the NOvA near detector. This measurement uses a narrow-band neutrino beam with an average neutrino energy of 2.7 GeV, which is of interest to ongoing and future long-baseline neutrino oscillation experiments. The measured, flux-averaged cross section is σ=13.8±0.9(stat)±2.3(syst)×10-40 cm2/nucleus, consistent with model prediction. This result is the most precise measurement of neutral-current coherent π0 production in the few-GeV neutrino energy region.

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