Combined Analysis of Neutrino and Antineutrino Oscillations at T2K

Ariga, Akitaka; Ereditato, Antonio; Nirkko, Martti; Pistillo, Ciro; Redij, Asmita Ajit; Wilkinson, Callum (2017). Combined Analysis of Neutrino and Antineutrino Oscillations at T2K. Physical review letters, 118(15) American Physical Society 10.1103/PhysRevLett.118.151801

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T2K reports its first results in the search for CP violation in neutrino oscillations using appearance and disappearance channels for neutrino- and antineutrino-mode beams. The data include all runs from January 2010 to May 2016 and comprise 7.482×10²⁰ protons on target in neutrino mode, which yielded in the far detector 32 e-like and 135  μ-like events, and 7.471×10²⁰ protons on target in antineutrino mode, which yielded 4 e-like and 66  μ-like events. Reactor measurements of sin²2θ₁₃ have been used as an additional constraint. The one-dimensional confidence interval at 90% for the phase δCP spans the range (-3.13, -0.39) for normal mass ordering. The CP conservation hypothesis (δCP=0, π) is excluded at 90% C.L.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)

UniBE Contributor:

Ariga, Akitaka; Ereditato, Antonio; Nirkko, Martti; Pistillo, Ciro; Redij, Asmita Ajit and Wilkinson, Callum

Subjects:

500 Science > 530 Physics

ISSN:

0031-9007

Publisher:

American Physical Society

Language:

English

Submitter:

Ciro Pistillo

Date Deposited:

26 Mar 2018 08:47

Last Modified:

01 Apr 2018 02:25

Publisher DOI:

10.1103/PhysRevLett.118.151801

Additional Information:

T2K Collaboration: Es sind nur die Berner Autoren namentlich erwähnt.

BORIS DOI:

10.7892/boris.112819

URI:

https://boris.unibe.ch/id/eprint/112819

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