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Determination of the neutrino mass ordering by combining PINGU and Daya Bay II
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.ORCID iD: 0000-0001-5948-9152
2013 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 2013, no 9, 089- p.Article in journal (Refereed) Published
Abstract [en]

The relatively large measured value of θ 13 has opened various possibilities to determine the neutrino mass ordering, among them using PINGU, the low-energy extension of the IceCube neutrino telescope, to observe matter effects in atmospheric neutrinos, or a high statistics measurement of the neutrino energy spectrum at a reactor neutrino experiment with a baseline of around 60 km, such as the Daya Bay II project. In this work we point out a synergy between these two approaches based on the fact that when data are analysed with the wrong neutrino mass ordering the best fit occurs at different values of varDelta m 312 for PINGU and Daya Bay II. Hence, the wrong mass ordering can be excluded by a mismatch of the values inferred for varDelta m 312, thanks to the excellent accuracy for varDelta m 312 of both experiments. We perform numerical studies of PINGU and Daya Bay II sensitivities and show that the synergy effect may lead to a high significance determination of the mass ordering even in situations where the 3individual experiments obtain only poor sensitivity.

Place, publisher, year, edition, pages
2013. Vol. 2013, no 9, 089- p.
Keyword [en]
Neutrino Physics, Standard Model
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-133198DOI: 10.1007/JHEP09(2013)089ISI: 000324892100002Scopus ID: 2-s2.0-84884563210OAI: oai:DiVA.org:kth-133198DiVA: diva2:659822
Note

QC 20131028

Available from: 2013-10-28 Created: 2013-10-28 Last updated: 2017-12-06Bibliographically approved

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Blennow, Mattias

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