Measurement ofνμandνeEvents in an Off-Axis Horn-Focused Neutrino Beam
P. Adamson,A. A. Aguilar-Arevalo,Carl E. Anderson,A.O. Bazarko,M. Bishai,S. J. Brice,Bruce Brown,L. Bugel,Junpeng Cao,B. C. Choudhary,L. Coney,J. M. Conrad,D. C. Cox,A. Curioni,Z. Djurcic,D. A. Finley,B. T. Fleming,R. Ford,H. Gallagher,F. Garcıa,G. T. Garvey,C. Green,J. A. Green,Deborah A. Harris,T. Hart,E. Hawker,J. Hylen,R. Imlay,R. A. Johnson,G. Karagiorgi,P. A. Kasper,T. Katori,T. Kobilarcik,S. Köpp,I. Kourbanis,S. Koutsoliotas,E. Laird,S. K. Linden,J. M. Link,Y. Liu,L. Loiacono,W. C. Louis,A. Marchionni,Kendall Mahn,W. Marsh,G. McGregor,M. D. Messier,W. Metcalf,P. D. Meyers,F. Mills,G. B. Mills,J. Monroe,C. D. Moore,J. K. Nelson,Robert H. Nelson,V. Nguyen,P. Nienaber,J. Nowak,S. Ouedraogo,R. B. Patterson,Ž. Pavlović,D. Perevalov,C. C. Polly,E. Prebys,J. L. Raaf,H. Ray,B. P. Roe,A. D. Russell,V. D. Sandberg,R. Schirato,D. Schmitz,M. H. Shaevitz,F. C. Shoemaker,W. Smart,D. Smith,M. Sodeberg,M. Sorel,P. Spentzouris,I. Stancu,R. J. Stefanski,M. Sung,H.A. Tanaka,R. Tayloe,M. Tzanov,P. Vahle,R. G. Van de Water,B. Viren,M. O. Wascko,D. H. White,M. J. Wilking,H. J. Yang,F. X. Yumiceva,G. P. Zeller,E. D. Zimmerman,R. Zwaska
Physical Review Letters（2009）
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摘要
We report the first observation of off-axis neutrino interactions in the MiniBooNE detector from the NuMI beamline at Fermilab. The MiniBooNE detector is located 745 m from the NuMI production target, at 110 mrad angle ($6.3^{\circ}$) with respect to the NuMI beam axis. Samples of charged current quasi-elastic $\nu_{\mu}$ and $\nu_e$ interactions are analyzed and found to be in agreement with expectation. This provides a direct verification of the expected pion and kaon contributions to the neutrino flux and validates the modeling of the NuMI off-axis beam.
