The Library

First muon-neutrino disappearance study with an off-axis beam

Tools

T2K Collaboration (Including: Barker, Gary John, Boyd, Steve B., Carver, A., Hadley, David, Harrison, P. F., Ilić, Jelena, Lister, Callum, Litchfield, R. P., Morgan, B. (Ben), Scully, D. I. and Whitehead, Leigh). (2012) First muon-neutrino disappearance study with an off-axis beam. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 85 (Number 3). Article number 031103. ISSN 1550-7998

[img]
Preview
 PDF
WRAP_PhysRevD.85.031103.pdf - Published Version - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under License Creative Commons Attribution.
Download (477Kb) | Preview

Abstract

We report a measurement of muon-neutrino disappearance in the T2K experiment. The 295-km muon-neutrino beam from Tokai to Kamioka is the first implementation of the off-axis technique in a long-baseline neutrino oscillation experiment. With data corresponding to 1.43×1020 protons on target, we observe 31 fully-contained single μ-like ring events in Super-Kamiokande, compared with an expectation of 104±14(syst) events without neutrino oscillations. The best-fit point for two-flavor ν μ→ν τ oscillations is sin2(2θ 23)=0.98 and |Δm322|=2.65×10 -3eV2. The boundary of the 90% confidence region includes the points ( sin2(2θ 23), |Δm322|)=(1.0,3.1×10 -3eV2), (0.84, 2.65×10 -3eV2) and (1.0, 2.2×10 -3eV2).

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Muons, Neutrinos, Particle beams
Journal or Publication Title: Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher: American Physical Society
ISSN: 1550-7998
Official Date: 22 February 2012
Dates:
DateEvent
22 February 2012Published
Volume: Volume 85
Number: Number 3
Article Number: Article number 031103
Identification Number: 10.1103/PhysRevD.85.031103
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
Funder: Japan. Monbushō, Natural Sciences and Engineering Research Council of Canada (NSERC), National Research Council Canada (NRCC), Canada Foundation for Innovation (CFI), France. Commissariat à l'énergie atomique (CEA), Centre national de la recherche scientifique (France) (CNRS), Institut national de physique nucléaire et de physique des particules (IN2P3), Deutsche Forschungsgemeinschaft (DFG), Istituto nazionale di fisica nucleare (INFN), Poland. Ministerstwo Nauki i Szkolnictwa Wyższego [Ministry of Science and Higher Education] (MNiSW), Rossiĭskai︠a︡ akademii︠a︡ nauk [Russian Academy of Sciences] (RAN), Rossiĭskiĭ fond fundamentalʹnykh issledovaniĭ [Russian Foundation for Basic Research] (RFBR), Russia (Federation). Ministerstvo obrazovanii︠a︡ i nauki [Ministry of Education and Science], Korea (South). Kyoyuk Kwahak Kisulbu [Ministry of Education, Science and Technology] (MEST), National Research Foundation of Korea (NRF), Spain. Ministerio de Ciencia e Innovación (MICINN), Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF), Switzerland. Staatssekretariat für Ausbildung und Forschung (SER), Science and Technology Facilities Council (Great Britain) (STFC), National Science Foundation (U.S.) (NSF), United States. Department of Energy, Seventh Framework Programme (European Commission) (FP7), Nihon Gakujutsu Shinkōkai [Japan Society for the Promotion of Sciences] (JSPS), Royal Society (Great Britain), Alfred P. Sloan Foundation
References:

[1] D. Beavis et al. (E889 Collaboration), Physics Design
BNL Report No. 52459, 1995.
[2] Y. Fukuda et al.(Super-Kamiokande Collaboration), Phys.
Rev. Lett. 81, 1562 (1998).
[3] K. Abe et al. (T2K Collaboration), Phys. Rev. Lett. 107,
041801 (2011).
[4] M. H. Ahn et al. (K2K Collaboration), Phys. Rev. D 74,
072003 (2006).
[5] P. Adamson et al. (MINOS Collaboration), Phys. Rev.
Lett. 106, 181801 (2011).
[6] K. Abe et al. (Super-Kamiokande Collaboration), Phys.
Rev. Lett. 107, 241801 (2011).
[7] K. Abe et al. (T2K Collaboration), Nucl. Instrum.
Methods Phys. Res., Sect. A 659, 106 (2011).
[8] Y. Yamazaki et al., KEK Report No. 2002-13 JAERI-Tech
Report Nos. 2003-44, J-PARC-03-01, 2003).
[9] K. Abe et al. (T2K Collaboration), arXiv:1111.3119
[Nucl. Instrum. Meth. (to be published)].
[10] N. Abgrall et al., Nucl. Instrum. Methods Phys. Res., Sect.
A 637, 25 (2011).
[11] Y. Fukuda et al. (Super-Kamiokande Collaboration),
Nucl. Instrum. Methods Phys. Res., Sect. A 501, 418
(2003).
[12] N. Abgrall et al.(NA61/SHINE Collaboration), Phys. Rev.
C 84, 034604 (2011).
[13] A. Ferrari, P. R. Sala, A. Fasso, and J. Ranft, CERN Report
No. 2005-010, 2005.
[14] G. Battistoni et al., AIP Conf. Proc. 896, 31 (2007).
[15] T. Eichten et al., Nucl. Phys. B44, 333 (1972).
[16] R. Brun, F. Carminati, and S. Giani, CERN Report
No. W5013, 1994.
[17] C. Zeitnitz and T. A. Gabriel, in International Conference
on Calorimetry in High Energy Physics, Tallahasse,
Florida, 1993 (unpublished).
[18] Y. Hayato, Acta Phys. Pol. B 40, 2477 (2009).
[19] J. Alcaraz-Aunion and J. Walding (SciBooNE
Collaboration), AIP Conf. Proc. 1189, 145 (2009).
[20] A. A. Aguilar-Arevalo et al. (MiniBooNE Collaboration),
Phys. Rev. D 81, 092005 (2010).
[21] A. A. Aguilar-Arevalo et al. (MiniBooNE Collaboration),
Phys. Rev. Lett. 103, 081801 (2009).
[22] R. Gran et al. (K2K Collaboration), Phys. Rev. D 74,
052002 (2006).
[23] A. Rodriguez et al.(K2K Collaboration), Phys. Rev. D 78,
032003 (2008).
[24] C. Andreopoulos et al., Nucl. Instrum. Methods Phys.
Res., Sect. A 614, 87 (2010).
[25] C. Juszczak, Acta Phys. Pol. B 40, 2507 (2009).
[26] C. Juszczak, J. T. Sobczyk, and J. Z˙muda, Phys. Rev. C82,
045502 (2010).
[27] Y. Ashie et al. (Super-Kamiokande Collaboration), Phys.
Rev. D 71, 112005 (2005).
[28] G. J. Feldman and R. D. Cousins, Phys. Rev. D 57, 3873
(1998).
[29] R. Cousins and V. Highland, Nucl. Instrum. Methods
Phys. Res., Sect. A 320, 331 (1992).
[30] J. Conrad, O. Botner, A. Hallgren, and C. Perez de los
Heros, Phys. Rev. D 67, 012002 (2003).
[31] Y. Takeuchi (Super-Kamiokande Collaboration), in
Proceedings of Neutrino 2010, Athens, Greece, 2010 (to
be published), arXiv: 1112.3425.
URI: http://wrap.warwick.ac.uk/id/eprint/44944

Request changes or add full text files to a record

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics