Latest results from T2K

T2K Collaboration

doi:10.1016/j.nuclphysbps.2019.03.007

Latest results from T2K

T2K Collaboration

Physics and Astronomy

Stony Brook University

Joint Institute for Nuclear Research

Research output: Contribution to journal › Article › peer-review

Abstract

T2K (Tokai to Kamioka) is a long-baseline neutrino oscillation experiment designed to measure (anti)neutrino flavor oscillations using an off-axis (anti)neutrino beam. The most recent oscillation results, obtained with an exposure of 1.5(1.3)×10²¹ protons on target in neutrino (antineutrino) mode are reported. The 2σ confidence interval for the CP-violating phase, δ_CP, does not include the CP-conserving cases (δ_CP=0,π). The best-fit values of the other parameters are sin²θ₂₃=0.536_−0.046 ^+0.031(sin²θ₂₃=0.536_−0.041 ^+0.031) and Δm₃₂ ²/10⁻³=2.434_−0.072 ^+0.073eV²/c⁴ (Δm₁₃ ²/10⁻³=2.410_−0.071 ^+0.070eV²/c⁴) for normal (inverted) ordering. One of the largest systematic uncertainties in neutrino oscillation analysis comes from neutrino interaction uncertainty. The T2K Collaboration has a wide cross section measurements program and the most recent results are discussed.

Original language	English
Pages (from-to)	31-36
Number of pages	6
Journal	Nuclear and Particle Physics Proceedings
Volume	303-305
DOIs	https://doi.org/10.1016/j.nuclphysbps.2019.03.007
State	Published - Oct 1 2018

Keywords

CP violation
T2K
cross-section
neutrino oscillations

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10.1016/j.nuclphysbps.2019.03.007

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@article{b12f6967c31c41abb728de551ecdf7e5,

title = "Latest results from T2K",

abstract = "T2K (Tokai to Kamioka) is a long-baseline neutrino oscillation experiment designed to measure (anti)neutrino flavor oscillations using an off-axis (anti)neutrino beam. The most recent oscillation results, obtained with an exposure of 1.5(1.3)×1021 protons on target in neutrino (antineutrino) mode are reported. The 2σ confidence interval for the CP-violating phase, δCP, does not include the CP-conserving cases (δCP=0,π). The best-fit values of the other parameters are sin2θ23=0.536−0.046 +0.031(sin2θ23=0.536−0.041 +0.031) and Δm32 2/10−3=2.434−0.072 +0.073eV2/c4 (Δm13 2/10−3=2.410−0.071 +0.070eV2/c4) for normal (inverted) ordering. One of the largest systematic uncertainties in neutrino oscillation analysis comes from neutrino interaction uncertainty. The T2K Collaboration has a wide cross section measurements program and the most recent results are discussed.",

keywords = "CP violation, T2K, cross-section, neutrino oscillations",

author = "\{T2K Collaboration\} and Ciro Riccio",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2018",

month = oct,

day = "1",

doi = "10.1016/j.nuclphysbps.2019.03.007",

language = "English",

volume = "303-305",

pages = "31--36",

journal = "Nuclear and Particle Physics Proceedings",

issn = "2405-6014",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Latest results from T2K

AU - T2K Collaboration

AU - Riccio, Ciro

PY - 2018/10/1

Y1 - 2018/10/1

N2 - T2K (Tokai to Kamioka) is a long-baseline neutrino oscillation experiment designed to measure (anti)neutrino flavor oscillations using an off-axis (anti)neutrino beam. The most recent oscillation results, obtained with an exposure of 1.5(1.3)×1021 protons on target in neutrino (antineutrino) mode are reported. The 2σ confidence interval for the CP-violating phase, δCP, does not include the CP-conserving cases (δCP=0,π). The best-fit values of the other parameters are sin2θ23=0.536−0.046 +0.031(sin2θ23=0.536−0.041 +0.031) and Δm32 2/10−3=2.434−0.072 +0.073eV2/c4 (Δm13 2/10−3=2.410−0.071 +0.070eV2/c4) for normal (inverted) ordering. One of the largest systematic uncertainties in neutrino oscillation analysis comes from neutrino interaction uncertainty. The T2K Collaboration has a wide cross section measurements program and the most recent results are discussed.

AB - T2K (Tokai to Kamioka) is a long-baseline neutrino oscillation experiment designed to measure (anti)neutrino flavor oscillations using an off-axis (anti)neutrino beam. The most recent oscillation results, obtained with an exposure of 1.5(1.3)×1021 protons on target in neutrino (antineutrino) mode are reported. The 2σ confidence interval for the CP-violating phase, δCP, does not include the CP-conserving cases (δCP=0,π). The best-fit values of the other parameters are sin2θ23=0.536−0.046 +0.031(sin2θ23=0.536−0.041 +0.031) and Δm32 2/10−3=2.434−0.072 +0.073eV2/c4 (Δm13 2/10−3=2.410−0.071 +0.070eV2/c4) for normal (inverted) ordering. One of the largest systematic uncertainties in neutrino oscillation analysis comes from neutrino interaction uncertainty. The T2K Collaboration has a wide cross section measurements program and the most recent results are discussed.

KW - CP violation

KW - T2K

KW - cross-section

KW - neutrino oscillations

UR - https://www.scopus.com/pages/publications/85064655958

U2 - 10.1016/j.nuclphysbps.2019.03.007

DO - 10.1016/j.nuclphysbps.2019.03.007

M3 - Article

SN - 2405-6014

VL - 303-305

SP - 31

EP - 36

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

ER -

Latest results from T2K

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Keywords

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