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Register a new userFirst measurement of the $ u_{mu}$ charged-current cross section without pions in the final state on a water target
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This paper reports the first differential measurement of the charged-current interaction cross section of $ u_{mu}$ on water with no pions in the final state. This flux-averaged measurement has been made using the T2K experiments off-axis near detector, and is reported in doubly-differential bins of muon momentum and angle. The flux-averaged total cross section in a restricted region of phase space was found to be $ sigma= (0.95 pm 0.08 (mbox{stat}) pm 0.06 (mbox{det. syst.}) pm 0.04(mbox{model syst.}) pm{} 0.08(mbox{flux}) ) times 10^{-38} mbox{cm}^2$ per n.
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This paper reports the first differential measurement of the charged-current $overline{ u}_{mu}$ interaction cross section on water with no pions in the final state. The unfolded flux-averaged measurement using the T2K off-axis near detector is given in double differential bins of $mu^+$ momentum and angle. The integrated cross section in a restricted phase space is $sigma=left(1.11pm0.18right)times10^{-38}$ cm$^{2}$ per water molecule. Comparisons with several nuclear models are also presented.
This paper presents the first combined measurement of the double-differential muon neutrino and antineutrino charged-current cross sections with no pions in the final state on hydrocarbon at the off-axis near detector of the T2K experiment. The data analyzed in this work comprise 5.8$times$10$^{20}$ and 6.3$times$10$^{20}$ protons on target in neutrino and antineutrino mode respectively, at a beam energy peak of 0.6 GeV. Using the two measured cross sections, the sum, difference and asymmetry were calculated with the aim of better understanding the nuclear effects involved in such interactions. The extracted measurements have been compared with the prediction from different Monte Carlo generators and theoretical models showing that the difference between the two cross sections have interesting sensitivity to nuclear effects.
This paper reports the first simultaneous measurement of the double differential muon neutrino charged-current cross section on oxygen and carbon without pions in the final state as a function of the outgoing muon kinematics, made at the ND280 off-axis near detector of the T2K experiment. The ratio of the oxygen and carbon cross sections is also provided to help validate various models ability to extrapolate between carbon and oxygen nuclear targets, as is required in T2K oscillation analyses. The data are taken using a neutrino beam with an energy spectrum peaked at 0.6 GeV. The extracted measurement is compared with the prediction from different Monte Carlo neutrino-nucleus interaction event generators, showing particular model separation for very forward-going muons. Overall, of the models tested, the result is best described using Local Fermi Gas descriptions of the nuclear ground state with RPA suppression.
The Tokai to Kamioka (T2K) experiment is a 295-km long-baseline neutrino experiment aimed towards the measurement of neutrino oscillation parameters ${theta}_{13}$ and ${theta}_{23}$. Precise measurement of these parameters requires accurate knowledge of neutrino cross sections. We present a flux-averaged double differential measurement of the charged-current cross section on water with zero pions in the final state using the T2K off-axis near detector, ND280. A selection of $ u_mu$ charged- current events occurring in the Pi-Zero subdetector (P{O}D) of ND280 is performed with $5.8 times 10^{20}$ protons on target. The charged, outgoing tracks are required to enter and be identified by the ND280 Tracker. The cross section is determined using an unfolding technique. By separating the dataset into time periods when the P{O}D water layers are filled with water and when they are empty, a subtraction method provides a distribution of $ u_mu$ interactions on water only. Systematic uncertainties on the neutrino flux, interaction model, and detector simulation are propagated numerically within the unfolding framework.
We have carried out $ u_{mu}$ charged-current interaction measurement on iron using an emulsion detector exposed to the T2K neutrino beam in the J-PARC neutrino facility. The data samples correspond to 4.0$times$10$^{19}$ protons on target, and the neutrino mean energy is 1.49$,$GeV. The emulsion detector is suitable for precision measurements of charged particles produced in neutrino-iron interactions with a low momentum threshold thanks to thin-layered structure and sub-$mu$m spatial resolution. The charged particles are successfully detected, and their multiplicities are measured using the emulsion detector. The cross section was measured to be $sigma^{mathrm{Fe}}_{mathrm{CC}} = (1.28 pm 0.11({mathrm{stat.}})^{+0.12}_{-0.11}({mathrm{syst.}})) times 10^{-38} , {mathrm{cm}}^{2}/{mathrm{nucleon}}$. The cross section in a limited kinematic phase space of induced muons, $theta_{mu} < 45^{circ}$ and $p_{mu} > 400 , {rm MeV}/c$, on iron was $sigma^{mathrm{Fe}}_{mathrm{CC hspace{1mm} phase hspace{0.5mm} space}} = (0.84 pm 0.07({mathrm{stat.}})^{+0.07}_{-0.06}({mathrm{syst.}})) times 10^{-38} , {mathrm{cm}}^{2}/{mathrm{nucleon}}$. The cross-section results are consistent with previous values obtained via different techniques using the same beamline, and they are well reproduced by current neutrino interaction models. These results demonstrate the capability of the detector towards the detailed measurements of the neutrino-nucleus interactions around the 1$,$GeV energy region.
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