Gerardo zavala guzman


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Gerardo zavala guzman

  1. 1. RISC CONACYT, Mexico, D.F.The MINERvA Experiment November 23th & 24th, 2011 Gerardo Zavala Guzman (on behalf of the MINERvA Collaboration) Universidad de Guanajuato 1
  2. 2. OUTLINEThe MINERva CollaborationThe MINERvA DetectorThe MINERvA MotivationsCurrent StatusSummary 2
  3. 3. The MINERvA CollaborationAt present-day, theMINERvA Collaborationis constituted by ca. 120nuclear and particlephysicists from 22institutions in 7countries. 3
  4. 4. The MINERvA DetectorGOALS:• Multiple ν-A interaction cross sections (broad range of A)• Exclusive final state and differential cross sections• Exclusive final states and inclusive scattering.• Form factors and structure functions• Nuclear effects on the ν-A interactions 4
  5. 5. MINERvA´s TimelineSUMMARY:November 2009: - MINERvA starts taking data with 55% of the detector and some nuclear targets.January - March 2010: - Install remaining detector - Start taking neutrino dataNovember 2010: - Start antineutrino data 5
  6. 6. MINERvA´s Timeline (cont.)2010 and beyond: Data acquisition for: LE configuration (3 GeV) ME configuration (8 GeV) ν and anti-ν All targets (H2O, He, C, Fe, Pb) Special runs to understand the flux Cross-section experiments MC Simulations for experimental data Data processing, validation, etc. 6
  7. 7. The MINERvA DetectorThe NuMI Beam: not at scale 7
  8. 8. a compact, fully active neutrino detector that uses the NuMI beam line to study neutrino- nucleus interactions with unprecedented detail. The detector is directly located upstream of the MINOS Near Detector. 8* Main INjector ExpeRiment for ν-A (interactions)
  9. 9. The MINERvA Detector (cont.) Main Components:ν 9
  10. 10. The MINERvA Detector (cont.)The modules: UX and VX configuration of the scintillator strips for stereoscopic 3D tracking 11
  11. 11. The MINERvA Detector (cont.)The modules: 12 done !
  12. 12. The MINERvA Detector (cont.)The NuMI Beam Characteristics:♦ Adjustable beam energy of the NuMI ν beam (broad range νE): Via target positioning relative to the focusing horns: Peak energy at 3, 8 and 12 GeV for the LE, ME and HE configurations, resp.♦ NuMI p+ beam intensity: ∼ <35×1012> P.O.T. per spill at 120 GeV♦ NuMI p+ beam power: 300-350 kW at ∼0.5 Hz. 13
  13. 13. The MINERvA Detector (cont.)The Optics: 14
  14. 14. The MINERvA Detector (cont.) Spatial resolution: ~ 3 mm Time resolution: ~ 4 ns Nuclear targets (broad A): He, C, H2O, Fe, H2O, Pb (nuclear effects on ν interactions absent in free standing nucleons) dσ/dE measurements: QE, DIS, sπ Recorded POT*: 1.7×1020 neutrinos 0,9×1020 anti-neutrinos 15 * as of Fall, 2011
  15. 15. MINERvA Full Detector Events 16
  16. 16. MINERvA Full Detector Events 17
  17. 17. MINERvA Full Detector Events 18
  18. 18. MINERvA Full Detector Events 19
  19. 19. The MINERvA MotivationsMain CC Physics Topics:• Quasi-elastic neutrino scattering• Resonance production• Resonance to DIS transition region• DIS Low Q2 region and structure functions• Coherent Pion Production• Strange and Charm particle production• Nuclear effects from comparisons between different nuclear targets: Polystyrene (CH), Carbon, Iron, Lead, H2O, He 20
  20. 20. SummaryExperimental Data:Accumulated:1.7×1020 POT for neutrino 0.90×1020 POT for antineutrinoThe goal: >200 TB4.9x1020 in LE mode.12x1020 in ME mode.Simulation Data (MC):∼ 15x1020 events 21
  21. 21. JULY, 2011 22
  22. 22. Summary MINERvA has unique ability to answer numerous puzzles seen in current cross section data MINERvA can effectively select CCQE events Work ongoing on an increased data set with the goal of producing CCQE cross section results . . . pronto !Expectation: New Understanding of Neutrino Interactions . . . just around the corner ! 23
  23. 23. The MINERvA Collaboration:D.A.M. Caicedo, C. Castromonte, G.A. Fiorentini, H. da Motta, A. M. Gago, N. Ochoa, C. E. Perez, J. P. VelasquezJ.L. Palomino → Pontificia Universidad Catolica del Peru, Lima, Peru→ Centro Brasileiro de Pesquisas Físicas, Rio de Janeiro, Brazil S. Boyd, S. Dytman, I. Danko, B. Eberly, Z. Isvan, D. Naples,C. Simon, B. Ziemer V. Paolone→ University of California, Irvine, California → University of Pittsburgh, Pittsburgh, PennsylvaniaL. Bagby, D. Boehnlein, R. DeMaat, D.A. Harris*, J. Kilmer, A. Bodek, R. Bradford, H. Budd, J. Chvojka, M. Day, R.J.G. Morfin, J. Osta, A. Pla-Dalmau, P. Rubinov, D. Schmitz, Flight, H. Lee, S. Manly, K.S. McFarland*, A. McGowan, A.R. Stefanski Mislivec, J. Park, G. Perdue, J. Wolcott→ Fermi National Accelerator Laboratory, Batavia, Illinois → University of Rochester, Rochester, New YorkJ. Grange, J. Mousseau, R. Napora, B. Osmanov, H. Ray G. Kumbartzki, T. Le, R. Ransome#, B. Tice→ University of Florida, Gainesville, Florida → Rutgers University, New Brunswick, New JerseyJ. Felix, A. Higuera, Z. Urrutia, G. Zavala M. Jerkins, S. Kopp, L. Loiacono→ Universidad de Guanajuato, Mexico → University of Texas, Austin, TexasM.E. Christy#, R. Ent, C.E. Keppel, P. Monaghan, T. Walton, H. Gallagher, T. Kafka, W.A. Mann#, W. OliverL. Zhu → Tufts University, Medford, Massachusetts→ Hampton University, Hampton, Virginia M. Aliana, C.J. Solano SalinasA. Butkevich, S. Kulagin → Universidad Nacional de Ingenieria, Lima, Peru→ Institute for Nuclear Research, Moscow, Russia W. Brooks, E. Carquina, G. Maggi, C. Peña, I. Potashnikova,I. Niculescu, G. Niculescu F. Prokoshin→James Madison University, Harrisonburg, → Universidad Técnica Federico Santa María, Valparaíso,Virginia E. Maher Chile→ Massachusetts College of Liberal Arts, North Adams, L. Aliaga, J. Devan, M. Kordosky, J.K. Nelson, J. Walding,Massachusetts D. ZhangR. Gran, M. Lanari →The College of William and Mary, Williamsburg, Virginia→ University of Minnesota-Duluth, Duluth, MinnesotaL. Fields, H. Schellman * Co-Spokespersons→Northwestern University, Evanston, Illinois # Members of the MINERvA Executive CommitteeN. Tagg @ Currently at Universidad Técnica Federico Santa María,→ Otterbein College, Westerville, Ohio Valparaíso, Chile 24
  24. 24. The MINERvA Detector Plane 25