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dc.contributor.author
Agarwalla, Sanjib K.
dc.contributor.author
Li, Tracey
dc.contributor.author
Rubbia, André
dc.date.accessioned
2019-10-08T11:00:34Z
dc.date.available
2017-06-10T02:11:25Z
dc.date.available
2019-10-08T11:00:34Z
dc.date.issued
2012-05
dc.identifier.other
10.1007/JHEP05(2012)154
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/51417
dc.identifier.doi
10.3929/ethz-b-000051417
dc.description.abstract
Recent data from long-baseline neutrino oscillation experiments have provided new information on θ 13, hinting that 0.01<∼sin2 2θ13<∼0.1 at 2 σ confidence level. In the near future, further confirmation of this result with high significance will have a crucial impact on the optimization of the future long-baseline neutrino oscillation experiments designed to probe the neutrino mass ordering and leptonic CP violation. In this context, we expound in detail the physics reach of an experimental setup where neutrinos produced in a conventional wide-band beam facility at CERN are observed in a proposed Giant Liquid Argon detector at the Pyhasalmi mine, at a distance of 2290 km. Due to the strong matter effects and the high detection efficiency at both the first and second oscillation maxima, this particular setup would have unprecedented sensitivity to the neutrino mass ordering and leptonic CP violation in the light of the emerging hints of large θ 13. With a 10 to 20 kt ‘pilot’ detector and just a few years of neutrino beam running, the neutrino mass hierarchy could be determined, irrespective of the true values of δ CP and the mass hierarchy, at 3 σ (5 σ) confidence level if sin2 2θ 13(true) = 0.05 (0.1). With the same exposure, we start to have 3 σ sensitivity to CP violation if sin2 2θ 13(true) > 0.05, in particular testing maximally CP-violating scenarios at a high confidence level. After optimizing the neutrino and anti-neutrino running fractions, we study the performance of the setup as a function of the exposure, identifying three milestones to have roughly 30%, 50% and 70% coverage in δ C P (true) for 3 σ CP violation discovery. For comparison, we also study the CERN to Slanic baseline of 1540 km. This work nicely demonstrates that an incremental program, staged in terms of the exposure, can achieve the desired physics goals within a realistically feasible timescale, and produce significant new results at each stage.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Neutrino Physics
en_US
dc.subject
CP violation
en_US
dc.title
An incremental approach to unravel the neutrino mass hierarchy and CP violation with a long-baseline superbeam for large theta(13)
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2012-05-31
ethz.journal.title
Journal of High Energy Physics
ethz.journal.volume
2012
en_US
ethz.journal.issue
5
en_US
ethz.pages.start
154
en_US
ethz.size
32 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.nebis
001934172
ethz.publication.place
Berlin
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03503 - Rubbia, André / Rubbia, André
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::03503 - Rubbia, André / Rubbia, André
ethz.date.deposited
2017-06-10T02:11:33Z
ethz.source
ECIT
ethz.identifier.importid
imp59364f689bc2d77104
ethz.ecitpid
pub:83880
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T17:32:35Z
ethz.rosetta.lastUpdated
2019-10-08T11:00:47Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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