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(FRA), Laboratory LLC Accelerator Alliance, National Research Fermi Fermi by the managed of support the acknowledge We Acknowledgements X. differential a extract the to of effects. us function enable a will as these section Together cross dependence. would model This the stage. mitigate the clustering to on the backgrounds properties to kinematic recon- input shower explore an the to as on us improve separation enable track-shower can analyses better future a mitigating Furthermore, utilizing in 21]. by aid and struction should im- [20 procedure Future effects extraction these signal modeling. of and impact detector modeling the the signal from wire process. sense arises this our analysis for in this This provements prediction in MEC argon. uncertainty empirical on systematic plus section GENIE dominant cross default The the pion with neutral agreement current in charged is electromagnetic first measurement automated the fully a measure of to implementation reconstruction first shower the utilized has MicroBooNE conclusion, In Conclusions IX. and over integrate to. we measurement (gray) our compare flux we BNB of sections full cross sum the quadratic GENIE shows the two panel denote the left bars The error outer uncertainties. the systematic and and uncertainty statistical statistical the denoting bars error integratedinner flux total measured The 4: FIG. 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Council (United Facilities Society National Technology Royal Swiss and the Offices Foundation; Science Science Science, the National of U.S. Foundation; Office the Energy, Science Physics; of Nuclear Department and Physics U.S. Energy the High of following: the by supported is MicroBooNE MicroBooNE–Note–1032–PUB 1314 v1.3 MicroBooNE–Note–1032–PUB v1.3 287 286 285 284 283 rgt.Tedt onsrpeettesaitclucranisadtebn ntertocrepn othe to correspond ratio the on band uncertainties. selection the flux shower and neutrino one uncertainties and statistical the GENIE the after represent and points (left) data preselection The after showers (right). reconstructed of number The 6: FIG. correspond ratio the uncertainties. on flux band shower neutrino the one and and the uncertainties GENIE after statistical the and the to (left) represent preselection points after data lengths The track (right). muon selection candidate of distribution The 5: FIG. selection. shower single the after and have and we before GENIE 6 events the Fig. the In include in uncertainties. reconstructed These length normalization showers our of 5. track of number Fig. muon size the if the candidate convey shown help the selection, to include uncertainties shower flux These single neutrino the analysis. after above and preselection the at supplement to act plots These Plots Auxiliary Appendix: A. MicroBooNE–Note–1032–PUB 12000 14000 16000 Events10000 Events 2000 4000 6000 8000 1000 1500 2000 2500 3000 3500 4000 4500

Ratio Ratio 500 0.5 1.5 0.5 1.5 1 1 MicroBooNE Preliminary MicroBooNE Preliminary 100 100 0 0 200 200 Candidate MuonTrackLength[cm] 1 1 Candidate MuonTrackLength[cm] 300 300 Number ofShowers Number ofShowers 2 2 400 400 3 GENIE andFluxSystematics Cosmic Other Neutral Current ν ν Data GENIE andFluxSystematics Cosmic Other Neutral Current ν ν Data 3 500 500 µ µ µ µ CC CC CC CC π π 0 0 600 600 1315 v1.3 4 4 1.62e20 POT 1.62e20 POT 700 700 5 5

Events Events 240 Ratio 100 200 300 400 500 Ratio 100 120 140 160 180 200 220 0.5 1.5 0.5 1.5 20 40 60 80 1 1 MicroBooNE Preliminary MicroBooNE Preliminary 100 100 0 0 200 200 Candidate MuonTrackLength[cm] 1 1 Candidate MuonTrackLength[cm] 300 300 Number ofShowers Number ofShowers 2 2 400 400 3 GENIE andFluxSystematics Cosmic Other ν ν ν ν ν Data 3 500 500 µ µ µ µ µ GENIE andFluxSystematics Cosmic Other ν ν ν ν ν Data NC CCMult CCChargeExch. CCFinalStateEM CC µ µ µ µ µ NC CCMult CCChargeExch. CCFinalStateEM CC π π 0 0 π π 600 0 0 600 π 4 4 0 π 0 1.62e20 POT 1.62e20 POT 700 700 5 5 MicroBooNE–Note–1032–PUB v1.3 304 303 302 301 300 299 298 297 296 295 294 293 292 291 290 289 288 nry(hw nFg ) h orce ulaigsoe nry(hw nFg ) n h w shower two the and 9), Fig. in (shown shower energy leading shower corrected subleading the corrected are the quantities 8), look three Fig. to These in interesting (shown calculation. also energy its is into it go selection that shower distributions two the our at for mass invariant diphoton the Plots calculating Input When Mass Invariant Diphoton Appendix: C. DUNE the in listed (right). resolution Proposal angular Program and SBN energy the an and with (left) achieved CDR be would that area distribution our mass to diphoton (black) distribution ( mass events invariant signal diphoton simulated subtracted normalized background our of Comparison 7: FIG. reconstructed our based distributions that Proposal find Program We SBN half-maxima. and 7. full-width DUNE the Fig. the on than in narrow reconstruction shown more shower This proposals, 20% our is these if created. distribution in mass mass is invariant listed mass diphoton resolution invariant the the energy diphoton of to the a shape largely had and the contributes times be resolution many based would events sampled angular smeared of is also The distribution event is Each showers proposals. two the tail. and the shower mass in between that higher listed angle of resolution opening energy angular The deposited the the proposals. at on the selection mean our in a by quoted with selected width can Gaussian are a that a we events from this the sample of do randomly energy To signal then deposited normalized true and area the Proposal. our take plot Program then and can SBN directly We mass invariant it and simulation. diphoton comparing our CDR from by DUNE backgrounds performing physics the all is in subtract reconstruction required shower resolution our which energy to to extent the gauge can Comparison We Mass Invariant Diphoton Appendix: B. MicroBooNE–Note–1032–PUB Background Subtracted Events 10 20 30 40 50 60 0 MicroBooNE Preliminary 50 Corrected DiphotonInvariantMass[MeV/c 100 150 200 250 AngularResolution:1% EnergyResolution:2% DUNE CDR(arXiv:1512.06148): ν (Data-Backgrounds) Simulation NormalizedtoData µ CC 300 π 0 ν 350 µ + 1316 v1.3 Ar 400 1.62e20 POT 2 ] → ⊕ 450 15% µ E 1 + 500 π 0 + Background Subtracted Events X 60 10 20 30 40 50 0 slo itga) hscmae othe to compared This histogram). (salmon ) MicroBooNE Preliminary 50 Corrected DiphotonInvariantMass[MeV/c 100 150 200 250 AngularResolution:1% EnergyResolution: SBN Proposal(arXiv:1503.01520): ν (Data-Backgrounds) Simulation NormalizedtoData µ CC 300 π 0 350 400 15% 1.62e20 POT 2 ] E 450 500 MicroBooNE–Note–1032–PUB v1.3 306 305 I.9 h itiuino h orce ulaigsoe nrywt h iuainPTnraie (left) normalized POT simulation (right). the data with the energy to shower normalized subleading area corrected and the of distribution The 9: FIG. (left) normalized POT simulation (right). the data with the energy to shower normalized leading area corrected and the of distribution The 8: FIG. figures). the all in in right left the the (to (to data normalized POT the both to presented normalized is area simulation and The figures) 10). all Fig. in (shown angle opening 3D MicroBooNE–Note–1032–PUB

Events100 120 140 160 180 Events 20 40 60 80 10 20 30 40 50 60 70 0 MicroBooNE Preliminary MicroBooNE Preliminary 50 50 100 Corrected SubleadingPhotonEnergy[MeV] 100 Corrected LeadingPhotonEnergy[MeV] 150 150 200 200 250 250 300 300 Cosmic (data) Other Charge Exchange Neutrino Induced Data Cosmic (data) Other Charge Exchange Neutrino Induced Data 350 350 1317 v1.3 400 400 1.62e20 POT 1.62e20 POT π π 450 450 π π 0 0 0 0 500 500

Events 100 120 Events 70 20 40 60 80 10 20 30 40 50 60 0 MicroBooNE Preliminary MicroBooNE Preliminary 50 50 100 Corrected SubleadingPhotonEnergy[MeV] 100 Corrected LeadingPhotonEnergy[MeV] 150 150 200 200 250 250 300 Cosmic (data) Other Charge Exchange Neutrino Induced Data Simulation NormalizedtoData Cosmic (data) Other Charge Exchange Neutrino Induced Data Simulation NormalizedtoData 300 350 350 400 400 π π π π 0 0 1.62e20 POT 1.62e20 POT 0 0 450 450 500 500 MicroBooNE–Note–1032–PUB v1.3 I.1:Tedsrbto ftetosoe Doeigagewt h iuainPTnraie lf)and (left) normalized POT simulation the with (right). angle data opening the 3D to shower normalized two area the of distribution The 10: FIG. MicroBooNE–Note–1032–PUB Events 10 20 30 40 50 60 70 0 MicroBooNE Preliminary 0.5 Diphoton OpeningAngle[rad] 1 1.5 Cosmic (data) Other Charge Exchange Neutrino Induced Data 2 1318 v1.3 2.5 1.62e20 POT π π 0 0 3

Events 60 10 20 30 40 50 0 MicroBooNE Preliminary 0.5 Diphoton OpeningAngle[rad] 1 1.5 Cosmic (data) Other Charge Exchange Neutrino Induced Data Simulation NormalizedtoData 2 2.5 π π 0 1.62e20 POT 0 3 MicroBooNE–Note–1032–PUB v1.3 325 324 323 322 321 326 320 337 336 335 334 333 332 331 330 329 328 327 319 318 317 316 315 314 313 312 311 310 309 308 307 A .Aguilar-Arevalo A. A. [13] Catala-Perez, J. [12] Altinok O. [11] Le T. [10] A .Aguilar-Arevalo A. A. [14] D ek .Sht,T hu,J np,adJ .Cpeile 19) eso 740 with v7.4003 version (1998), Capdevielle, N. Acciarri J. R. and [19] Knapp, J. Thouw, T. Schatz, [physics.ins-det]. G. arXiv:1311.6774 Heck, v06.26.01.12, D. version [18] (2013), Church, D. E. [17] Katori, T. [16] Andreopoulos C. [15] al it ahvrainaalbewti h EI eegtn rmwr n o tsitour shift it References how and framework reweighting GENIE section. the cross within measured available variation each lists Table V Uncertainty Table Section Cross Full Appendix: D. 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AIP , 83 509(2011). 052009 , 1663 , MicroBooNE–Note–1032–PUB v1.3 AL :Rslsfo EI vn eegtn noretatdcossection. cross extracted our on reweighting event GENIE from Results V: TABLE MicroBooNE–Note–1032–PUB oa netit 17.2% Uncertainty Total 1320 v1.3 omoe3.6% FormZone GYT0.0% AGKYpT GYF0.0% AGKYxF M M aito 1 Variation M M DISC DISC RR RR RR RR M M M M IAh0.2% DISAth IBh0.3% DISBth R R( BR R( BR R( BR η V A x x V A NCRES NCRES x x NCEL CCRES CCRES 0 COH x x x x A A V A COH NCEL CCQE CCQE x x x x mfp π mfp N inel π inel N cex π cex N νn νn νp νp CC CC CC CC abs π abs N π N el N el π π π ν ν γ η θ 2 1 2 1 u0.2% 0.2% 2u 1u π 2.7% ) 2.7% ) 0.2% ) π π π π π σ Uncertainty 10.1% 5.9% 0.3% 0.3% 0.5% 1.7% 0.0% 0.3% 0.1% 0.8% 0.2% 3.4% 0.4% 0.7% 5.4% 0.5% 5.1% 0.5% 4.0% 0.5% 3.3% 1.9% 2.2% 4.1% 2.6% 1.1% MicroBooNE–Note–1032–PUB v1.3 353 352 351 350 349 348 347 346 345 344 343 342 341 340 339 338 C egradL .Sha,Py.Rev. Phys. Sehgal, M. L. Physics and of Berger Annals C. Sehgal, [32] M. L. D and Rev. 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