Precise measurement of the neutrino mixing parameter θ23 from muon neutrino disappearance in an off-axis beam

6533b838fe1ef96bd12a45eb

RESEARCH PRODUCT

Precise measurement of the neutrino mixing parameter θ23 from muon neutrino disappearance in an off-axis beam

K. Mavrokoridis F. D. M. Blaszczyk Y. Kanazawa S. Berkman Robert Wilson Viktor Matveev L. Southwell J. D. Perkin T. J. Irvine Henry W. Sobel Henry W. Sobel C. W. Walter C. W. Walter C. Yanagisawa C. Yanagisawa K. Nishikawa S. Murphy J. Myslik T. Wachala M. Nirkko Oleg Mineev T. Hara T. Golan Y. Yamada Y. Fukuda D. Autiero Jan T. Sobczyk J. L. Palomino S. W. K. Emery Gareth J. Barker M. Hierholzer M. Ziembicki P. De Perio K. Laihem J. Zalipska J. Insler E. Radicioni A. Murakami A. Kilinski A. Himmel F. Retiere Y. Totsuka R. G. Calland D. Gudin Yusuke Koshio Yusuke Koshio S. L. Cartwright S. M. Oser A. Konaka M. Lazos M. A.m. Rayner J. P. Coleman Hiroyuki Sekiya D. L. Wark D. L. Wark A. K. Ichikawa S. Bordoni T. Okusawa Jungsang Kim T. Nakai S. Y. Suzuki E. Rondio M. Mezzetto N. Mccauley S. Roth E. S. Pinzon Guerra Th. A. Mueller Matthew T. Reeves H. Kakuno L. Ludovici T. Wongjirad S. Manly K. Connolly T. Szeglowski Kendall Mahn M. Ikeda A. C. Kaboth T. Kikawa Masashi Tanaka Y. Seiya J. Schwehr A. Robert A. Izmaylov A. P. Furmanski Ken Sakashita H. M. O'keeffe Takahiro Hiraki A. Longhin J. Marteau A. Cervera K. Suzuki V. Paolone K. Huang J. Kameda P. Przewlocki Antonin Vacheret W. R. Kropp A. Jacob A. D. Marino Y. Takeuchi Y. Takeuchi K. Ieki D. Karlen D. Karlen S. R. Dennis S. R. Dennis A. Bravar R. J. Wilkes D. Terhorst J. Dumarchez M. D. Haigh A. Minamino I. Lamont P. Kitching M. O. Wascko V. Palladino J. F. Martin M. Tzanov K. Ueno Yusuke Suda K. E. Duffy Iain Alexander Bertram E. Kearns E. Kearns M. Kabirnezhad C. J. Metelko J. Imber S. Moriyama A. Suzuki Masashi Yokoyama D. Naples Z. Williamson S. Tobayama E. Poplawska P. Rojas S. J. Coleman Frédéric Dufour Lester D.r. Thompson K. Iyogi R. J. Smith D. Goeldi A. Kolaceke C. Touramanis J. Adam S. Di Luise L. Cremonesi D. Brailsford P. Stamoulis M. Murdoch R. Poutissou E. D. Zimmerman S. Yen M. Lawe C. Wilkinson M. B. Smy M. Zito M. Tada D. Cherdack P. Jonsson M. Vagins M. Vagins M. Malek R. Ohta D. R. Hadley M. Bass D. Ruterbories F. Sato R. Castillo Yuichi Oyama D. Sgalaberna R. P. Litchfield Antonio Ereditato N. Yershov J. Zmuda K. Abe R. Sacco I. Kreslo A. Redij A. Zalewska J. Holeczek C. Mcgrew L. Koch S. Assylbekov L. Floetotto Scott Davis D. Hansen Y. Nishimura S. J. Ives P. Sinclair C. A. Miller Kevin Scott Mcfarland G. De Rosa C. Andreopoulos M. Sorel Takashi Kobayashi B. Quilain R. A. Owen W. Toki S. Nakayama Hiroaki Aihara Tsuyoshi Nakaya Tsuyoshi Nakaya R. A. Wendell M. Ravonel A. Blondel S. Horikawa Akitaka Ariga M. Posiadala M. G. Catanesi C. Hearty Marco Laveder Vincenzo Berardi P. N. Ratoff Tomoko Ariga Shigeki Aoki T. Kutter M. Macaire G. Christodoulou T. Tomura K. Zaremba A. V. Waldron T. Nagasaki T. Maruyama S. Short S. Dytman Yoshinari Hayato P. A. Rodrigues L. Pickard S. Giffin G. Vasseur N. C. Hastings P. Plonski T. Yuan Masato Shiozawa Atsushi Takeda T. Duboyski H. Kubo T. Tsukamoto E. L. Mathie M. Friend N. J. Buchanan Joshua Hignight Masayuki Nakahata B. Still Yoshihiro Suzuki T. Nakadaira Y. Uchida J. Caravaca Rodríguez J. H. Jo J. R. Wilson C. Nielsen A. Haesler H.a. Tanaka M. J. Wilking B. A. Popov B. A. Popov Seiko Hirota G.d. Barr S. Bhadra M. Gonin Stefan Schoppmann S. B. Boyd L. Escudero M. Miura M. Yu C. Lister J. M. Poutissou C. Bronner W. Oryszczak K. P. Lee Y. Petrov J. Steinmann P. Mijakowski Kate Scholberg Kate Scholberg C. K. Jung C. K. Jung D. Kielczewska M. Batkiewicz I. Karpikov A. Dabrowska M. Hartz M. Hartz T. Lindner C. Densham T. Akiri A. C. Weber A. C. Weber T. Hasegawa S. Mine N. Grant G. Collazuol Mark Scott J. Marzec R. Terri K. Nakayoshi R. L. Helmer S. Kumaratunga A. Thorley A. Korzenev Rhiju Das B. Jamieson T. Ishii M. M. Khabibullin O. Drapier M. Mccarthy T. Ishida Koji Nakamura A. N. Khotjantsev Y. Fujii Kimihiro Okumura M. Barbi F. Bay V. Galymov Michal Dziewiecki Kazuhiro Yamamoto E. Mazzucato L. L. Kormos T. Sekiguchi Takaaki Kajita Y. Shustrov A. Hillairet Federico Sanchez J. Kisiel D. Payne K. Gilje Alexander Finch André Rubbia S. Takahashi T. Dealtry T. Dealtry A. Missert A. Clifton R. A. Johnson B. E. Berger J. Lagoda F. Di Lodovico C. Bojechko L. Zambelli K. Koseki M. Ieva Yu. G. Kudenko Yu. G. Kudenko R. Tacik R. Tacik O. Perevozchikov Hajime Tanaka L. Monfregola P. Hamilton L. Magaletti C. Giganti E. Iwai C. Pistillo B. Smith E. Reinherz-aronis E. Scantamburlo R.p. Kurjata S. W. Bentham I. Z. Danko

subject

Particle physics General Physics Physics Multidisciplinary MODELS General Physics and Astronomy FOS: Physical sciences MASS 01 natural sciences 09 Engineering High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex)Physics and Astronomy (all)0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]SCATTERING Muon neutrino 010306 general physics Neutrino oscillation DETECTOR Mixing (physics)01 Mathematical Sciences Physics Neutrons Science & Technology 02 Physical Sciences 010308 nuclear & particles physics Scattering Oscillation hep-ex Physics Física T2K Collaboration Physical Sciences SYMMETRIES High Energy Physics::Experiment Neutrino High energy physics Mixing Parameter estimation Parameter extraction Confidence limit Energy dependent Neutrino oscillations Off-axis neutrino beam Oscillation parameters Oscillation probabilities Precise measurements Statistical uncertainty Beam (structure)Energy (signal processing)

description

New data from the T2K neutrino oscillation experiment produce the most precise measurement of the neutrino mixing parameter theta_{23}. Using an off-axis neutrino beam with a peak energy of 0.6 GeV and a data set corresponding to 6.57 x 10^{20} protons on target, T2K has fit the energy-dependent nu_mu oscillation probability to determine oscillation parameters. Marginalizing over the values of other oscillation parameters yields sin^2 (theta_{23}) = 0.514 +0.055/-0.056 (0.511 +- 0.055), assuming normal (inverted) mass hierarchy. The best-fit mass-squared splitting for normal hierarchy is Delta m^2_{32} = (2.51 +- 0.10) x 10^{-3} eV^2/c^4 (inverted hierarchy: Delta m^2_{13} = (2.48 +- 0.10) x 10^{-3} eV^2/c^4). Adding a model of multinucleon interactions that affect neutrino energy reconstruction is found to produce only small biases in neutrino oscillation parameter extraction at current levels of statistical uncertainty.

year	journal	country	edition	language
2014-03-06

10.1103/physrevlett.112.181801 http://hdl.handle.net/11589/57791