) c (MeV/ TT p δ Recon -400-300-200-100 0 100 200 300 400 ) c (MeV/ TT p δ Truth -400 -300 -200 -100 0 100 200 300 400 0 0.2 0.4 0.6 0.8 1 0 0.2 0.4 0.6 0.8 1 ) c (MeV/ TT p δ Recon -400-300-200-100 0 100 200 300 400 ) c (MeV/ TT p δ True -400 -300 -200 -100 0 100 200 300 400 0 0.2 0.4 0.6 0.8 1 ) c (MeV/ p p Recon 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 3 10 × ) c (MeV/ p p Truth 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 3 10 × ) c (MeV/ p p Recon 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 3 10 × ) c (MeV/ p p Truth 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 3 10 × ) c (MeV/ p p Truth ) c (MeV/ TT p δ -400-300-200-100 0 100 200 300 400 Counts 0 100 200 300 400 500 600 Fake Data Signal and mesons 0 π Charged mesons Zero mesons Other Signal ) c (MeV/ TT p δ -400 -300 -200 -100 0 100 200 300 400 Data/MC Pass Fail Time Slicing Vertex Position Muon Identiﬁcation Proton Selection !0 Identiﬁcation Sample Signal Michel Tagged Low pID Michel Tagged Fail Pass Pass Michel Tagged Signal Low pID ) c (MeV/ γ γ m 0 50100150200250300350400450500 Counts 0 20 40 60 80 100 120 140 160 180 Fake Data Signal and mesons 0 π Charged mesons Zero mesons Other PID ) c (MeV/ γ γ m 0 50100150200250300350400450500 Counts 0 10 20 30 40 50 60 70 80 Fake Data Signal and mesons 0 π Charged mesons Zero mesons Other Michel ) c (MeV/ γ γ m 0 50100150200250300350400450500 Counts 0 20 40 60 80 100 120 140 160 Fake Data Signal and mesons 0 π Charged mesons Zero mesons Other Signal Default True Recon Residual 1 - T µ p -0.5-0.4-0.3-0.2-0.1 0 0.1 0.2 0.3 0.4 0.5 0 100 200 300 400 500 600 700 800 Curvature Fitted Gaussian Mean = -0.02 Width = 0.11 = 153/45 ndf / 2 χ Range Fitted Gaussian Mean = -0.01 Width = 0.07 = 242/45 ndf / 2 χ Measuring nuclear effects in pionic semi-exclusive ﬁnal states using the MINERvA Detector David Coplowe on behalf of the MINERvA Collaboration david.coplowe@physics.ox.ac.uk Introduction The MINERvA Detector nµ Transverse Plane µ− pµ− p0 pp0 p pp pµ− T pp0 T pp T µ− pµ− T p0 pp0 T p pp T Transverse Plane dpTT = pp TT + pp0 TT A = 1 : pp TT = −pp0 TT A > 1 : pp TT 6= −pp0 TT pp0 TT pp TT Reconstruction Improvements Signal Extraction [1] K. Abe et al. (T2K), Phys. Rev. D97 012001 (2018), [2] P. Adamson (NOvA), Phys. Rev. Lett. 118 (2017) no.15, 151802, [3] NOvA Technical Design Report, FERMILAB-DESIGN-2007-01, [4] R. Acciarri et al. (DUNE Collaboration), arXiv:1512.06148, [5] O. Altinok (MINERvA), Phys. Rev. D96, 072003 (2017), [6] X.-G. Lu, D. Coplowe, R. Shah, G. Barr, D. Wark, and A. Weber, Phys. Rev. D92, no. 5, 051302 (2015) 60 < mgg (MeV) < 200 1.5 < Eµ (GeV) < 20.0 • Situated on-axis in NuMI Beam. • Analysis studies low energy dataset peaked at 3.5 GeV. • Active tracker capable of reconstructing low energy (T = 110 MeV) tracks • Precise directionality (within 3 mm), • Particle identiﬁcation and momentum provided by dE/dx proﬁling. • MINOS near detector measures charge and momentum of forward going muons. • ECAL and HCAL aids in full event containment. pp > 450 (MeV/c) c2 pen = (E1−Emeas 1 )2 s2 E1 + (E2−Emeas 2 )2 s2 E2 • Neutral pions identiﬁed via dominant decay (ddidavid). • Kinematics determined using photons energy and direction • Momentum limited by photons calorimetric reconstruction, • Angular resolution is good. • Use precise angular determination to improve calorimetric estimates by ﬁtting iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii using a penalty term p0 ! gg m2 = 2E1E2(1 −cos q12) Kinematic Constraints qµ < 25◦ • Nuclear effects are currently one of the dominant sources of systematic uncertainty in oscillation measurements [1,2]. • Signal and background selection efﬁciencies. • Reconstructed neutrino energy spectra. • Measuring ﬁnal states with exactly one cii, and at least one pii and p. • Will aid in reducing such uncertainties in Multi-GeV oscillation experiments [3,4]. • This work is an extension to the analysis on the ‘delta rich’ sample in [5]. • Nuclear dynamics probed by double transverse momentum (dpiii) — a kinematic imbalance of the hadronic ﬁnal state [6]. µ− p0 p dpT