miner a (fnal e938) gabriel niculescu, jmu minera web site: miner a main injector minos near...

MINERMINERA (FNAL A (FNAL E938)E938)

Gabriel Niculescu, JMUGabriel Niculescu, JMU

MINERA web site: http://minerva.fnal.gov/

Minera

Main Injector

MINOS Near Detector

NuMI Beam Where?FERMILABNumi Beam LineIn front of the Minos

near detector ( used as “muon catcher”)

NuMi Beam Line

Fully Active Target:8.3 tons

NuclearTargets:6.2 tons(40% scint.)

LHeLHe

SideECALSideECAL

Fully Active TargetFully Active Target

Do

wn

stre

am E

CA

LD

ow

nst

ream

EC

AL D

ow

ns

tre

am

Do

wn

str

ea

mH

CA

LH

CA

L

Nu

clea

rN

ucl

ear

Tar

get

sT

arg

ets

Side HCAL (OD)Side HCAL (OD)

Veto WallVeto Wall

What with? Active core of segmented solid scintillator providing:

Precision tracking (including low momentum recoil protons)

Particle identification

3 ns (RMS) per hit timing (track direction, stopped K±)

LHe, C, Fe, Pb targets (upstream)

Core surrounded by electromagneticand hadronic calorimeters

, 0, and hadronic E measurement

MINOS near detector as muon catcher

Low-risk, simple, well-understood,

Affordable!

Target Fiducial Vol. Expected CC (tons) Yields (106)

CH (scintillator) 3.00 9.0He 0.20 0.6C 0.15 0.4Fe 0.70 2.0Pb 0.85 2.5

Assume: 4.0 x 1020 POT LE and 12.0 x 1020 POT ME beam

How Big? Main CC Physics Topics (Statistics in active target only - CH)

Quasi-elastic 0.8 M events Resonance Production 1.7 M totalTransition: Resonance to DIS 2.1 M eventsDIS, Structure Funcs. and high-x PDFs 0.3 M DIS eventsCoherent Pion Production 89 K CC / 44 K NCStrange and Charm Production >240 KGeneralized Parton Distributions ~ 10 K events

What?

Axial form factor of the nucleon Resonance production in both NC & CC interactions

Statistically significant measurements with 1-5 GeV neutrinosStudy of “duality” with neutrinos

Coherent pion production

Statistically significant measurements of A-dependence

Strange particle production (Important backgrounds for proton decay)

Parton distribution functions (Measurement of high-x behavior of quarks)

Generalized parton distributionsNuclear effects (Expect significant differences for -A vs e/-A nuclear effects)

Detailed Why?

p

Quasielastic event

n p

Neutral Current 0

A

Resonance production

p ++ - p +

p

Simulated Minera Events

1.7 × 3.3 cm2 strips

WLS fiber readout in center hole

Optical Connectors

Scintillator & embedded

WLS

Clear fiber

M-64 PMT

PMT Box

Minera Core

Quo Vadis, Minera?

• CD 1 and 2 approval (working on 3)• Vertical Slice Test• Small array test @JLab (300MeV • Full Module Prototype (spring ’07)

• Test beam (MTEST) @Fermilab• Start production in ’08, data taking in ‘09

Your Minera (Put your comments here)

What?

MINERvA is a compact, fully active neutrino detector designed to study neutrino-nucleus interactions in detail at high statistics”

Why?Inherent interest in the phenomena of

low-energy neutrino-nucleus scattering

“Neutrino Engineering”: Provide knowledge that will help improve/enhance other neutrino studies (read “oscillations”)

Who? (E938 Collaboration)

University of Athens - Greece; University of Dortmund; University of Minnesota – Duluth; Fermi National Accelerator Laboratory; Hampton University; Illinois Institute of Technology; Institute for Nuclear Research – Moscow; University of California – Irvine; Thomas Jefferson National Laboratory; James Madison University; Northwestern University; Pontificia Universidad Catolica del Peru; University of Pittsburgh; Rutgers, The State University of New Jersey; Tufts University; Universidad Nacional de Ingenieria – Peru; University of Rochester; College of William & Mary; St. Xavier University; Centro Brasileiro de Pesquisas Fisicas - Brazil