# Presentation: 308973

## MINERA (Main INjector ExpeRiment -A)

- A High-Statistics Neutrino Scattering Experiment
- Using an On-Axis, Fine-grained Detector
- in the NuMI Beam

**Quantitative Study of Low-energy ******** - Nucleus Interactions**

- PANIC 2005
- 25 October 2005
- Jorge G. Morfín
- Fermilab

- MINERA (Main INjector ExpeRiment -A)

## What are the Open Questions in Neutrino PhysicsFrom the APS Multi-Divisional Study on the Physics of Neutrinos

- What are the masses of the neutrinos?
- What is the pattern of mixing among the different types of neutrinos?
- Are neutrinos their own antiparticles?
- Do neutrinos violate the symmetry CP?
- Are there “sterile” neutrinos?
- Do neutrinos have unexpected or exotic properties?
- What can neutrinos tell us about the models of new physics beyond the Standard Model?
**The answer to almost every one of these questions involves understanding how neutrinos interact with matter!**
- Among the APS study assumptions about the current and future program:
- “determination of the neutrino reaction and production cross sections required for a precise understanding of neutrino-oscillation physics and the neutrino astronomy of astrophysical and cosmological sources. **Our broad and exacting program of neutrino physics is built upon **_**precise knowledge of how neutrinos interact with matter**_**.”**

## What MINERA will deliver!

- MINER*v*A is a compact, fully active neutrino detector designed to study neutrino-nucleus interactions with unprecedented detail.
- The MINER*v*A detector will be placed in the high intensity NuMI beam line that provides:
- opportunity for precision neutrino interaction measurements
- a wide range of neutrino energies
- The MINER*v*A Detector, with
- 	several different nuclear targets, allows first study of neutrino induced nuclear effects
- MINER*v*A will provide crucial
- 	input to current and future oscillation measurements

- 0 production

- C, Fe and Pb
- Nuclear targets

## The MINERA Detector

- Active core: ~6 t segmented solid scintillator
- Tracking (including low p recoil protons)
- Particle identification
- 3 ns (RMS) per hit timing (track direction, 				identify stopped *K*±)
- Core surrounded by em and
-      hadronic calorimeters
- Photon (0) & hadron energy
-     measurement
- MINOS Near Detector as muon spectrometer

## Event Rates 13 Million total CC events in a 4 - year run

- Assume 16**.0x**1020** in LE********and  ****ME NuMI beam configurations in 4 years**

**Fiducial Volume = 3 tons CH, ≈  0.5 t C, Fe  and Pb**
**Expected CC event samples:**
**8.6 M ******** events in 3 tons of CH**
**1.5 M ******** events in C**
**1.5 M ******** events in Fe**
** ****1.5 M ********events in Pb**

**Main CC Physics Topics (Statistics in CH)**** **
**Quasi-elastic**** ****	****	****	****	****0.8 M events **
**Resonance Production**** ****	****	****	****1.6 M total**
**Transition: Resonance to DIS****	****	****2 M events**
**DIS, Structure Funcs. and high-x PDFs**** ****	****4.1 M DIS events**
**Coherent Pion Production****	********85 K CC / 37 K NC**
**Strange and Charm Particle Production**** ****	****> 230 K fully reconstructed events**
**Generalized Parton Distributions ****	****	****order 10 K events****	**
**Nuclear Effects**** ****	****	****	****C:1.5 M, Fe: 1.5 M and Pb: 1.5 M**

## The MINERA  Scattering Physics Program

**	****	****	****	****	**
- Quasi-elastic
- Resonance Production - 1pi
- Resonance/transition Region - npi** **resonance to DIS
- Deep-Inelastic Scattering
- Coherent Pion Production
- Strange and Charm Particle Production
- T , Structure Functions and PDFs
- s(x) and c(x)
- High-x parton distribution functions
- Nuclear Effects
- Generalized Parton Distributions

## MINERA CC Quasi-Elastic Measurements800 K events

- Average: eff. = 74 % and purity = 77%

**Expected MiniBooNE **
**and K2K measurements**

- Precision measurement of E) and d/dQ important for neutrino oscillation studies.
- Precision determination of axial vector form factor (FA), particularly at high Q2
- Study of proton intra-nuclear scattering and their A-dependence (C, Fe and Pb targets)
**Fully simulated analysis, - realistic detector simulation and reconstruction**

## Coherent Pion Production85K CC events

- MINERA

**Expected MiniBooNe **
**and K2K measurements**

- Rein-Seghal

- Paschos-
- Kartavtsev

**MINER********A’s nuclear targets allow the**
**first measurement of the A-dependence**
**of ********coh**** across a wide A range**

- K2K SciBar measurement published:
- Expect **470 CC** coherent a la R-S
- Find **7.6 ± 50.4**

**Precision measurement of ********E********) important for neutrino oscillation appearance studies.**

## Nuclear EffectsDifference between  and  nuclear effects

- Sergey Kulagin

- With neutrinos, shadowing is allowed at much lower-, via the axial-vector coupling as shown by Boris Kopeliovich at NuInt04:
- 			Lc = 2 / (m2 + Q2)  ≥  RA	**(not **m2**)**
- _L__c__ __**100 times shorter with **_m_**allowing low **____**-low **__Q__2__** shadowing**_
- Only measurable via neutrino-nucleus interactions.**  MINER********A WILL **_**MEASURE**_** THIS  ACROSS A WIDE **** AND **Q2** RANGE WITH  C : Fe : Pb**

## Who is MINERA?   The MINERA Collaboration -Experts from two communities - door is still open

**Red = HEP,  ****Blue = NP,  ****Black = Theorist**

- D.  Drakoulakos, P. Stamoulis,  G. Tzanakos, M. Zois
**University of Athens, Athens, Greece**
- D. Casper, J. Dunmore, C. Regis, B. Ziemer
**University of California, Irvine, California**
- E. Paschos
**University of Dortmund, Dortmund, Germany**
- D. Boehnlein, D. A. Harris,  M.  Kostin,  J.G. Morfin,
- A. Pla-Dalmau, P. Rubinov,  P. Shanahan, P. Spentzouris
**Fermi National Accelerator Laboratory, Batavia, Illinois**
- M.E. Christy, W.  Hinton, C.E .Keppel
**Hampton University, Hampton, Virginia**
- R. Burnstein,  O. Kamaev, N.  Solomey
**Illinois Institute of Technology, Chicago, Illinois**
- S.Kulagin
**Institute for Nuclear Research, Moscow, Russia**
- I. Niculescu. G. .Niculescu
**James Madison University, Harrisonburg, Virginia**
- W.K.  Brooks, A. Bruell, R. Ent, D. Gaskell,,
- W. Melnitchouk,  S. Wood
**Jefferson Lab, Newport News, Virginia**

- G. Blazey, M.A.C. Cummings, V. Rykalin
**Northern Illinois University, DeKalb, Illinois**
- S.  Boyd, D.  Naples, V.  Paolone
**University of Pittsburgh, Pittsburgh, Pennsylvania**
**L. Aliaga, J.L. Bazo, A. Gago, **
**Pontificia Universidad Catolica del Peru, Lima, Peru**
- A. Bodek, R. Bradford, H.  Budd, J. Chvojka,
- P. de Babaro, S. Manly,  K. McFarland, J. Park, W. Sakumoto
**University of Rochester, Rochester, New York**
- R. Gilman, C. Glasshausser, X. Jiang, G. Kumbartzki,
- K. McCormick, R. Ransome
**Rutgers University, New Brunswick, New Jersey**
- A. Chakravorty
**Saint Xavier University, Chicago, Illinois**
- H. Gallagher, T.  Kafka, W.A. Mann, W. Oliver
**Tufts University, Medford, Massachusetts**
- R. Ochoa, O. Pereyra, J. Solano
**Universidad Nacional de Ingenieria. Lima, Peru**
- J. Nelson, F.X.Yumiceva
**William and Mary College, Williamsburg, Virginia**

## Cost Summary

- Obligation Profile Summaries (Base + Contingency + Indirect  M$),excludes already expended FY05 funds, 0.8M$

## MINERA Status

- MINERA has Fermilab Stage 1 Approval
- MINERA has successfully undergone a first Director’s Review
- Fermilab has repeatedly shown itself to be solidly committed to MINERA
- MINERA is a firmly established project at Fermilab
- Fermilab has been generous in their support of MINERvA R&D
- We expect construction funds from ~11/2006 – ~10/2008
- We are prototyping the “factory” setup now through Sept. 2006
**We are on track for first physics quality data at the end of 2008**

## Summary

- The MINERA experiment brings together the expertise of the HEP and NP communities to study low-energy -A physics.
- MINERA will accumulate significantly more events in important exclusive channels across a wider E range than currently available as well as a huge sample of DIS events. With excellent knowledge of the beam,  will be well-measured.
- With C, Fe and Pb targets MINERA will undertake a systematic study of nuclear effects in -A interactions, known to be different than well-studied e-A channels.
- MINERA results will dramatically improve the systematic errors of current and future neutrino oscillation experiments.
**MINER********A has Stage I approval and is an established Fermilab project, with an evolving (Fermilab/DOE) funding scenario, **_**that should be completed in Fall of 2008 with physics data-taking starting end CY2008 or start of CY2009**_**.**

## Generalized Parton Distribution FunctionsWeak Deeply Virtual Compton Scattering

- 

- p

- W> 2 GeV, t small, Elarge  - Exclusive reaction

- First measurement of GPDs with neutrinos
- Weak DVCS would allow flavor separation of GPDs
- According to calculation by A. Psaker (ODU), MINERA would accumulate 10,000 weak DVCS events in a 4-year run

## How MINERA Would Help NOA/T2K

- Current Accuracy of
- Low-energy Cross-sections
- QE = 20%
- RES
- DIS
- COHFe

- With MINERA
- Measurements of 
- QE = 5%
- RES(CC, NC)
- DIS
- COHFe

- Total fractional error in the predictions as a function of Near Detector off-axis Angle