Chakrani, J. - Risultato della ricerca

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First joint oscillation analysis of Super-Kamiokande atmospheric and T2K accelerator neutrino data / T2K Collaboration
The Super-Kamiokande and T2K collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. [...]
arXiv:2405.12488. - 12.
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Role of deexcitation in the final-state interactions of protons in neutrino-nucleus interactions / Ershova, A. (IRFU, Saclay) ; Niewczas, K. (Wroclaw U. ; Gent U.) ; Bolognesi, S. (IRFU, Saclay) ; Letourneau, A. (IRFU, Saclay) ; David, J.-C. (IRFU, Saclay) ; Rodríguez-Sánchez, J.L. (La Coruna U.) ; Sobczyk, J.T. (Wroclaw U.) ; Blanchet, A. (Geneva U.) ; Avanzini, M. Buizza (LLR, Palaiseau) ; Chakrani, J. (LLR, Palaiseau) et al.
Present and next generation of long-baseline accelerator experiments are bringing the measurement of neutrino oscillations into the precision era with ever-increasing statistics. One of the most challenging aspects of achieving such measurements is developing relevant systematic uncertainties in the modeling of nuclear effects in neutrino-nucleus interactions. [...]
arXiv:2309.05410.- 2023-12-01 - 14 p. - Published in : Phys. Rev. D 108 (2023) 112008 Fulltext: 2309.05410 - PDF; Publication - PDF;

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Measurements of the $\nu_{\mu}$ and $\bar{\nu}_{\mu}$-induced coherent charged pion production cross cections on $^{12}C$ by the T2K experiment / T2K Collaboration
We report an updated measurement of the $\nu_{\mu}$-induced, and the first measurement of the $\bar{\nu}_{\mu}$-induced coherent charged pion production cross section on $^{12}C$ nuclei in the T2K experiment. This is measured in a restricted region of the final-state phase space for which $p_{\mu,\pi} > 0.2$ GeV, $\cos(\theta_{\mu}) > 0.8$ and $\cos(\theta_{\pi}) > 0.6$, and at a mean (anti)neutrino energy of 0.85 GeV using the T2K near detector. [...]
arXiv:2308.16606.- 2023-11-01 - 15 p. - Published in : Phys. Rev. D 108 (2023) 092009 Fulltext: 2308.16606 - PDF; Publication - PDF;

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Parametrized uncertainties in the spectral function model of neutrino charged-current quasielastic interactions for oscillation analyses / Chakrani, J. (LLR, Palaiseau) ; Dolan, S. (CERN) ; Buizza Avanzini, M. (LLR, Palaiseau) ; Ershova, A. (IRFU, Saclay) ; Koch, L. (Mainz U., Inst. Phys.) ; McFarland, K. (Rochester U.) ; Megias, G.D. (Seville U.) ; Munteanu, L. (CERN) ; Pickering, L. (Royal Holloway, U. of London) ; Skwarczynski, K. (Warsaw, Inst. Nucl. Studies) et al.
A substantial fraction of systematic uncertainties in neutrino oscillation experiments stem from the lack of precision in modeling the nuclear target in neutrino-nucleus interactions. Whilst this has driven significant progress in the development of improved nuclear models for neutrino scattering, it is crucial that the models used in neutrino data analyses be accompanied by parameters and associated uncertainties that allow the coverage of plausible nuclear physics. [...]
arXiv:2308.01838.- 2024-04-01 - 26 p. - Published in : Phys. Rev. D 109 (2024) 072006 Fulltext: PDF;

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Updated T2K measurements of muon neutrino and antineutrino disappearance using <math display="inline"><mrow><mn>3.6</mn><mo>×</mo><mrow><msup><mrow><mn>10</mn></mrow><mrow><mn>21</mn></mrow></msup></mrow></mrow></math> protons on target / T2K Collaboration
Muon neutrino and antineutrino disappearance probabilities are identical in the standard three-flavor neutrino oscillation framework, but CPT violation and non-standard interactions can violate this symmetry. In this work we report the measurements of $\sin^{2} \theta_{23}$ and $\Delta m_{32}^2$ independently for neutrinos and antineutrinos. [...]
arXiv:2305.09916.- 2023-10-01 - 10 p. - Published in : Phys. Rev. D 108 (2023) 072011 Fulltext: 2305.09916 - PDF; Publication - PDF;

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First measurement of muon neutrino charged-current interactions on hydrocarbon without pions in the final state using multiple detectors with correlated energy spectra at T2K / T2K Collaboration
This paper reports the first measurement of muon neutrino charged-current interactions without pions in the final state using multiple detectors with correlated energy spectra at T2K. The data was collected on hydrocarbon targets using the off-axis T2K near detector (ND280) and the on-axis T2K near detector (INGRID) with neutrino energy spectra peaked at 0.6 GeV and 1.1 GeV respectively. [...]
arXiv:2303.14228.- 2023-12-01 - 36 p. - Published in : Phys. Rev. D 108 (2023) 112009 Fulltext: PDF;

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Measurements of neutrino oscillation parameters from the T2K experiment using $3.6\times10^{21}$ protons on targetMeasurements of neutrino oscillation parameters from the T2K experiment using $3.6\times 10^{21}$ protons on target / T2K Collaboration
The T2K experiment presents new measurements of neutrino oscillation parameters using $19.7(16.3)\times10^{20}$ protons on target (POT) in (anti-)neutrino mode at the far detector (FD). Compared to the previous analysis, an additional $4.7\times10^{20}$ POT neutrino data was collected at the FD. [...]
arXiv:2303.03222.- 2023-09-05 - 51 p. - Published in : Eur. Phys. J. C 83 (2023) 782 Fulltext: document - PDF; 2303.03222 - PDF;

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Scintillator ageing of the T2K near detectors from 2010 to 2021 / T2K Collaboration
The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium for the measurement of charged particles produced in neutrino interactions at its near detector complex. Over 10 years of operation the measured light yield recorded by the scintillator based subsystems has been observed to degrade by 0.9--2.2% per year. [...]
arXiv:2207.12982.- 2022-10-17 - 35 p. - Published in : JINST 17 (2022) P10028 Fulltext: 2207.12982 - PDF; Publication - PDF;

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Study of final-state interactions of protons in neutrino-nucleus scattering with INCL and NuWro cascade models / Ershova, A. (IRFU, Saclay) ; Bolognesi, S. (IRFU, Saclay) ; Letourneau, A. (IRFU, Saclay) ; David, J.-C. (IRFU, Saclay) ; Dolan, S. (CERN) ; Hirtz, J. (IRFU, Saclay) ; Niewczas, K. (Wroclaw U. ; Gent U.) ; Sobczyk, J.T. (Wroclaw U.) ; Blanchet, A. (Paris U., VI-VII) ; Buizza Avanzini, M. (Ecole Polytechnique) et al.
The modeling of neutrino-nucleus interactions constitutes a challenging source of systematic uncertainty for the extraction of precise values of neutrino oscillation parameters in long-baseline accelerator neutrino experiments. To improve such modeling and minimize the corresponding uncertainties, a new generation of detectors is being developed, which aim to measure the complete final state of particles resulting from neutrino interactions. [...]
arXiv:2202.10402.- 2022-08-01 - 19 p. - Published in : Phys. Rev. D 106 (2022) 032009 Fulltext: PDF; Fulltext from publisher: PDF;

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10.

Parametrising CCQE uncertainties in the Spectral Function model for neutrino oscillation analyses / Chakrani, Jaafar (Ecole Polytechnique) ; Buizza Avanzini, Margherita (Ecole Polytechnique) ; Dolan, Stephen (CERN)
A substantial fraction of systematic uncertainties in neutrino oscillation experiments stems from the lack of precision in modeling the nucleus when describing the neutrino-nucleus interactions. The Spectral Function (SF) model features a distribution of momenta and removal energies of nucleons inside the nucleus within the shell-model picture, and also accounts for short-range correlations between nucleons. [...]
arXiv:2202.03219.- 2022-03-31 - 5 p. - Published in : PoS NuFact2021 (2022) 235 Fulltext: document - PDF; 2202.03219 - PDF;
In : 22nd International Workshop on Neutrinos from Accelerators (NuFact 2021), Cagliari, Italy, 6 - 11 Sep 2021, pp.235

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Vedi anche: autori con nomi simili
1	Chakrani, Jaafar

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