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Neutrino Scattering in the NuMI Beam To Perform a High-Statistics Neutrino Scattering Experiment using an On-Axis Fine-grained Detector in the NuMI Beam.

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Presentation on theme: "Neutrino Scattering in the NuMI Beam To Perform a High-Statistics Neutrino Scattering Experiment using an On-Axis Fine-grained Detector in the NuMI Beam."— Presentation transcript:

1 Neutrino Scattering in the NuMI Beam To Perform a High-Statistics Neutrino Scattering Experiment using an On-Axis Fine-grained Detector in the NuMI Beam MINER A (Main INjector ExpeRiment v-A) MINER A Collaboration Meeting 27-28 June 2003 Argonne - Athens - California/Irvine - Colorado - Dortmund - Duke - Fermilab - Hampton - I I T - INR/Moscow -James Madison - Jefferson Lab - M I T - Minnesota - Pittsburgh - Rochester - Rutgers - South Carolina - Tufts 19 Groups: Red = HEP, Blue = NP, Green = Theorists only

2 Neutrino Scattering in the NuMI Beam 52 Collaborators (so far…) J.Arrington, D.H.Potterveld, P.E.Reimer, T.Joffe-Minor Argonne National Laboratory, Argonne, Illinois C.Andreopoulos, G.Mavromanolakis, P.Stamoulis, N.Saoulidou, G.Tzanakos, M.Zois University of Athens, Athens, Greece D.Casper University of California, Irvine, California E.R.Kinney University of Colorado, Boulder, Colorado E. Paschos University of Dortmund, Dortmund, Germany D.Dutta Duke University, Durham, North Carolina D.Harris, M. Kostin, J.G.Morfin, P.Shanahan Fermi National Accelerator Laboratory, Batavia, IL M.E.Christy Hampton University, Hampton, Virginia N.Solomey Illinois Institute of Technology, Chicago, Illinois I.Niculescu James Madison University, Harrisonburg, Virginia R. Carlini, R.Ent, D.Gaskell, J. Gomez, C.E.Keppel. W.Melnitchouk, S.Wood Jefferson Lab, Newport News, Virginia A.Bruell M.I.T., Cambridge, Massachusetts M.DuVernois University of Minnesota, Minneapolis, Minnesota S. Kulagin Institute for Nuclear Resarch, Moscow, Russia S.Boyd, D.Naples, V. Paolone University of Pittsburgh, Pittsburgh, Pennsylvania A.Bodek, H. Budd, P. de Babaro, G. Ginther, S, Manly, K. McFarland, W. Sakumoto, P. Slattery, M. Zielinsky University of Rochester, Rochester, New York R.Gilman, C.Glasshausser, R.Ransome Rutgers University, New Brunswick, New Jersey T.Bergfeld, A.Godley, S.R.Mishra, C.Rosenfeld University of South Carolina, Columbia, South Carolina H.Gallagher, W.A.Mann Tufts University, Medford, Massachusetts

3 Neutrino Scattering in the NuMI Beam Collaboration Meeting Agenda - Friday SOFTWARE TOPICS 9:30 - 10:15 Physics Monte Carlo - Dave & Hugh 10:15 - 10:45 Break 10:45 - 12:30 Description of GEANT Simulation and chance to play with the program - Steve B. PHYSICS CHAPTERS 14:00 - 14:45 Elastic Channel - Arie and Howard 14:45 - 15:15 Resonance Production - Thia (for Steve W.) 15:15 - 15:45 Dynamical Model Of Weak Pion Production - Harry Lee 15:45 - 16:15 Break 16:15 - 16:45 Strange Particle Production - Nick and Tony 16:45 - 17:00 Charm Production - Vittorio 17:00 - 17:45 Cross-sections, Structure Functions, Duality and Nuclear Effects - Thia and Jorge 9:30 - 9:45 NC/CC - Donna 9:45 - 10:25 MINERvA and Oscillation Physics - Debbie and Hugh 10:25 - 10:30 Generalized Parton Distributions - 10:30 - 10:45 Break 10:45 - 11:30 General Discussion including Overall Software Organization (Dave, Hugh & Steve)

4 Neutrino Scattering in the NuMI Beam Collaboration Meeting Agenda - Saturday DETECTOR ISSUES 11:35 - 12:00 Magnetized detector - George 12:00 - 12:30 NOMAD detector experience - Sanjib 2:00 - 2:30 Optimizing scintillator strips - Steve B. PHOTOSENSOR FEST! 2:30 - 2:35 Ground rules - Kevin 2:35 - 3:00 APDs - Howard 3:00 - 3:25 II/CCD - Steve M./ Ron R. 3:25 - 3:50 Double-ended readout Arie 3:50 - 4:15 MAPMT costs - Kevin 4:15 - 4:45 Break 4:45 - 5:15 Discussion Photosensors 5:15 - 5:35 Splatter and TOF Status - Nick 5:35 - 6:00 Next steps: "default design” and costing - Kevin

5 Neutrino Scattering in the NuMI Beam New MINOS 5-Year Run-plan - D. Michael

6 Neutrino Scattering in the NuMI Beam Latest NuMI Beam Monte Carlo - M. Messier

7 Neutrino Scattering in the NuMI Beam Change in le-beam flux: V14 to V15

8 Neutrino Scattering in the NuMI Beam Le, s-me and s-he Beams le beam s-me beam hs-he beam

9 Neutrino Scattering in the NuMI Beam Biggest Uncertainty is Hadron Momentum Distributions

10 Neutrino Scattering in the NuMI Beam P t Distributions from Monte Carlos

11 Neutrino Scattering in the NuMI Beam Dependence of le-beam spectrum on model

12 Neutrino Scattering in the NuMI Beam DON’T FORGET! WITH E-907 (MIPP) THIS UNCERTAINTY IN HADRON PRODUCTION SPECTRA WILL BE RESOLVED BY MEASURING THE SPECTRA OF HADRONS COMING OFF THE NUMI TARGET

13 Neutrino Scattering in the NuMI Beam Obtaining the Latest NuMI Beam Simulations

14 Neutrino Scattering in the NuMI Beam  Tot, F i (x,Q 2 ),Duality and Nuclear Effects  Experiment: (only) on nuclear targets:  d  /dxdQ off, mainly, carbon t Could say F 2 = xF 3 at high x, but … t Concentrate on careful measurement of transition region  Low energy (< 10 GeV) primarily from the 70’s and 80’s suffering from low statistics and large systematics (mainly from flux measurements). t Mainly bubble chamber results --> larger correction for missing neutrals. D. Naples - NuInt02

15 Neutrino Scattering in the NuMI Beam How well do we model  Tot ? S. Zeller - NuInt02

16 Neutrino Scattering in the NuMI Beam D. Naples Conclusions from NuInt02

17 Neutrino Scattering in the NuMI Beam Nuclear Effects  Without can’t measure flavor dependence of nuclear effects  However, can make careful measurement of ratio of d  /dxdQ off C, Fe and Pb. Never measured before. Study shadowing and EMC effect with neutrinos!  Can measure dD(z)/dxdQ off C, Fe and Pb which would be a convolution of all nuclear effects including: boson (quark-flavor dependence) and transparency (final-state interactions / formation-length /color transparency)effects.  Behavior of F 2 as x --> 1.0 in Nuclear Environment  Few-nucleon-correlation and multi-quark models allow quarks to have higher momentum ---> high x tail with F 2  e - ax  CCFR: a = 8.3 ± 0.7 ± 0.7,  e: a = 16 ± 0.5

18 Neutrino Scattering in the NuMI Beam Nuclear Effects with Neutrinos Ratio Fe/C: Statistical Errors From MINOS Parasitic Run x B j MINOSMINOS all DIS 0.0 -.011.8 % xxx.01 -.02 1.4 10 %.02 -.03 1.3 6.03 -.04 1.2 4.04 -.05 1.13.05 -.06 1.12.6.06 -.07 1.02.3 ( running only) Q 2 = 0.7 GeV 2

19 Neutrino Scattering in the NuMI Beam Add an run  Experiment: and on nuclear targets:  Also measure d  /dxdQ off, mainly, C t Concentrate on careful measurement of transition region t In addition can extract all 6 structure functions individual PDF's in a given x,Q bin. X = 0.1 - 0.125 Q 2 = 2 - 4 GeV 2 (1-y) 2 R = R whitlow Neutrino 1 year he-beam Anti-Neutrino 2 years he-beam

20 Neutrino Scattering in the NuMI Beam Physics Results: High-x Bj Parton Distribution Functions  The particular case of what is happening at high- x Bj is currently a bit of controversial with indications that current global results not correct:  Drell-Yan production results ( E-866) may indicate that high-x Bj (valence) quarks OVERESTIMATED.  A Jlab analysis of Jlab and SLAC high x DIS indicate high-x Bj quarks UNDERESTIMATED. ≈ Statistical Errors for 1 year of he- x Bj CHLH 2 LD 2.6 -.650.6%2.2%1.5%.65 -.70.72.61.7.7 -.751.03.72.5.75 -.81.353.8 -.85275.85 -.93117.9 - 1.041410 Measured / CTEQ6 CTEQ6 SLAC points Might be d/u ratio

21 Neutrino Scattering in the NuMI Beam Nuclear Effects with both  and   First real measurement of flavor dependent nuclear effects of particular importance for neutrino scattering experiments.  Major difference in predictions Kumano (valence LESS shadowed than sea) vs Kulagin (valence MORE shadowed than sea) : Ca

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