Transcript The building blocks of matter

The Proposed India-based
Neutrino Observatory
(INO)
Naba K Mondal
Tata Institute of Fundamental Research
Indian meet on linear collider
Indore, 17-18 April, 2003
Neutrino Physics in India
• Indian initiative in Neutrino Physics
goes back nearly 35 years.
• Demonstrated for the first time the
feasibility of doing neutrino experiment
at KGF .
• International collaboration experiment
to detect atmospheric neutrinos started
at KGF in 1964.
• Detection of atmospheric neutrino in
1965
• KGF data during the proton decay era
was used to look for ultra high energy
neutrino sources in the sky.
• Bounds on neutrino masses using
cosmological data.
• Estimation of atmospheric neutrino
flux.
2
Open Questions in Neutrino Physics
• Conclusively show that oscillations are
responsible for observed flux deficits
by demonstrating an L/E dependence
of event rates.
• Determine the mass heierarchy of
neutrinos.
• Measurement of q13.
• Is the CP violation in leptonic sector ?
3
Measurement of disappearance
The disappearance
probability can be
measured with a single
detector and two equal
sources:
L’
q
N up(L/E)
= P(nm  nm; L/E)
N down(L’/E)
L
= 1 - sin2 (2Q) sin2 (1.27 Dm2 L/E)
q
L
4
INO Detector Concept
INO IRON
CALORIMETER
5
Glass Spark Chamber
It is an RPC with electrodes made of standard float glass instead of Bakelite
with a completely different design approach developed at LNGS.
Gas Mixture : Argon/Freon/C4H10 = 48/48/4
Spacers by
injection molding
(2 mm)
Float Glass
End caps by
injection molding
Resistive film
Noryl
Envelope
Thermoplastic soldering
for gas sealing
Easy and fast and cheap construction
Ready for mass production.
6
Physics Capabilities of INO
Work in Progress on INO Physics capabilities
7
Possible INO sites
•
•
PUSHEP (Pykara Ultimate Stage Hydro Electric
Project)
RAMMAM Hydro Electric Project Site
8
Location of Rammam
9
Other Physics potential
• Cosmic ray studies using multiple
muon + airshower on surface
• Search for magnetic monopoles
• Search for WIMPs
• Additional studies on Kolar Events,
Double core events, anomalous
cascades
• Neutrinos from factories
10
Long Baseline Physics
Reach after one year for Sinq13 0.038 for PUSHEP and 0.026 for RAMMAM
11
Long Baseline Physics
Sing of Dm232
12
Long Baseline Physics
13