Upload
eric-potter
View
217
Download
0
Embed Size (px)
Citation preview
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