Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Liquid Argon - The Future of Neutrino Physics?

Liquid Argon - The Future of Neutrino Physics?

Talk delivered February 25, 2010 at the University of Warwick Department of Physics Postgraduate Seminar Series.

Andrew J. Bennieston

February 25, 2010
Tweet

More Decks by Andrew J. Bennieston

Other Decks in Science

Transcript

  1. Neutrino
OscillaJons
 3
 |νi = i α Uαi |να U =

      1 0 0 0 c23 s23 0 −s23 c23     c13 0 s13 e−iδ 0 1 0 −s13 e−iδ 0 c13     c12 s12 0 −s12 c12 0 0 0 1   “Atmospheric”
 “Reactor”
 “Solar”
 Mass
States
 Flavour
States
 PMNS
Matrix

  2. LAr
@
Warwick
–
Current
R&D
 SimulaJon
&
 ReconstrucJon
 • GEANT4
 physics
 SimulaJon
 • Track
 ReconstrucJon
 Hardware
 • LAr
purity
&


    handling
 • Readout
&
 control
 electronics
 Physics
 • Charge
 transport
 study
 • Light
 producJon
 study
 10

  3. KD
Tree
 •  IteraJve
nearest‐ neighbour
search
&
 fitng
over
last
N
points
 •  Histograms
of
fit
results
 (direcJon
cosines)
form
 Gaussian
peaks
 • 

    Parameters
of
lines
 obtained
from
these
 peaks
 event11_segment1_x -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 0 5 10 15 20 25 30 35 40 45 event11_segment1_x event11_segment1_x 18

  4. Track
Road
 •  Peter
Piper
picked
a
pair
of
pickled
points
 •  …
then
drew
a
cylinder
centred
on
the
line
 between
them
 •  Any
points
inside
cylinder
considered
part
of
 the
track
 • 

    Do
this
for
every
pair
of
points
(brute
force)
–
 real
tracks
correspond
to
those
cylinders
 containing
the
most
points
(greatest
charge)
 20

  5. The
(More
Distant)
Future
 •  Large‐scale
LAr
TPCs
already
planned
/
running
 –  ICARUS
(CERN)
 –  MicroBooNE,
LBNE,
ArgoNeuT
(Fermilab)
 –  MODULAR
(Gran
Sasso)
 • 

    Possible
future
intermediate
detector
for
the
T2K
 experiment
(Japan)
 •  Good
case
for
LAr
TPCs
as
detectors
for
a
future
neutrino
 factory
 •  Also
have
applicaJons
in
searches
for
dark
maOer,
proton
 decay,
…
 •  Automated
reconstrucJon
will
be
needed
for
all
of
these!
 22