# Presentation: 138333

## 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

**Argo****nne**** - ****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

## 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

## 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)

## 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

## New MINOS 5-Year Run-plan - D. Michael

## Latest NuMI Beam Monte Carlo - M. Messier

## Change in le-beam flux: V14 to V15

## Le, s-me and s-he Beams

- le beam

- s-me beam

- hs-he beam

## Biggest Uncertainty isHadron Momentum Distributions

## Pt Distributions from Monte Carlos

## Dependence of le-beam  spectrum on model

## 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

## Obtaining the Latest NuMI Beam Simulations

## Tot, Fi(x,Q2),Duality and Nuclear Effects

- Experiment:  (only) on nuclear targets:
- d/dxdQ off, mainly, carbon
- Could say F2  = xF3 at high x, but ...
- 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).
- Mainly bubble chamber results --> larger correction for missing neutrals.

- D. Naples - NuInt02

## How well do we model Tot ?

- S. Zeller - NuInt02

## D. Naples Conclusions from NuInt02

## 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 F2 as x --> 1.0  in Nuclear Environment
- Few-nucleon-correlation and multi-quark models allow quarks to have higher momentum ---> high x tail with F2  e- ax
- CCFR: a = 8.3 ± 0.7 ± 0.7, e: a = 16 ± 0.5

## Nuclear Effects with Neutrinos 

-   Ratio Fe/C: Statistical Errors
- From MINOS Parasitic Run
-     xBj 	MINOS	MINOS
- 	    all	    DIS
- 0.0  -  .01	1.8 %	xxx
- .01 - .02 	1.4 	10 %
- .02 - .03 	1.3   	6
- .03 - .04 	1.2   	4
- .04 - .05 	1.1	3
- .05 - .06 	1.1	2.6
- .06 - .07 	1.0	2.3

**(********  running only**)

**Q****2**** = 0.7 GeV****2**

## Add an  run

- Experiment:  **and ****** on nuclear targets:
- Also measure d/dxdQ off, mainly, C
- Concentrate on careful measurement of transition region
- In addition can extract all 6 structure functions individual PDF's in a given x,Q bin.

- X = 0.1 - 0.125
- Q2 = 2 - 4 GeV2

- (1-y)2

- R = Rwhitlow
- Neutrino
- 1 year he-beam
- Anti-Neutrino
- 2 years he-beam

## Physics Results: High-xBj Parton Distribution Functions

- The particular case of what is happening at high- xBj is currently a bit of controversial with indications that current global results not correct:
- Drell-Yan production results ( E-866) may indicate that high-xBj (valence) quarks OVERESTIMATED.
- A Jlab analysis of Jlab and SLAC high x DIS indicate high-xBj quarks UNDERESTIMATED.
- _≈ __Statistical Errors  for 1 year of he-___
- 	    xBj 	   	CH	LH2  	 LD2
**	****.6 - .65****	****0.6%****	****2.2%****	****1.5%**
**	****.65 - .7****	****0.7****	****2.6****	****1.7**
**	****.7 - .75****	****1.0****	****3.7****	****2.5**
**	****.75 - .8****	****1.3****	****5****	****3**
**	****.8 - .85****	****2****	****7****	****5**
**	****.85 - .9****	****3****	****11****	****7**
**	****.9 - 1.0****	****4****	****14****	****10****	**

- Measured / CTEQ6

- CTEQ6

- SLAC points

- Might be d/u ratio

## 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