Measurement of the electron neutrino charged-current interaction rate on water with the T2K ND280 π0 detector

Ariga, Akitaka; Ereditato, Antonio; Göldi, Damian; Hierholzer, Martin; Nirkko, Martti; Pistillo, Ciro; Redij, Asmita Ajit (2015). Measurement of the electron neutrino charged-current interaction rate on water with the T2K ND280 π0 detector. Physical review. D - particles, fields, gravitation, and cosmology, 91(11), p. 112010. American Physical Society 10.1103/PhysRevD.91.112010

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This paper presents a measurement of the charged current interaction rate of the electron neutrino beam component of the beam above 1.5 GeV using the large fiducial mass of the T2K π0 detector. The predominant portion of the νe flux (∼85%) at these energies comes from kaon decays. The measured ratio of the observed beam interaction rate to the predicted rate in the detector with water targets filled is 0.89 ± 0.08 (stat.) ± 0.11 (sys.), and with the water targets emptied is 0.90 ± 0.09 (stat.) ± 0.13 (sys.). The ratio obtained for the interactions on water only from an event subtraction method is 0.87 ± 0.33 (stat.) ± 0.21 (sys.). This is the first measurement of the interaction rate of electron neutrinos on water, which is particularly of interest to experiments with water Cherenkov detectors.

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; Göldi, Damian; Hierholzer, Martin; Nirkko, Martti; Pistillo, Ciro and Redij, Asmita Ajit

Subjects:

500 Science > 530 Physics

ISSN:

1550-7998

Publisher:

American Physical Society

Language:

English

Submitter:

Ciro Pistillo

Date Deposited:

23 Jun 2016 10:20

Last Modified:

26 Jun 2016 02:17

Publisher DOI:

10.1103/PhysRevD.91.112010

Additional Information:

Kollaboration. Es sind nur die Berner Autoren namentlich erwähnt.

BORIS DOI:

10.7892/boris.82766

URI:

https://boris.unibe.ch/id/eprint/82766

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