Novel event classification based on spectral analysis of scintillation waveforms in Double Chooz

Abrahão, T.; Almazán, H.; Anjos, J. C. dos; Appel, S.; Bekman, I.; Bezerra, T. J. C.; Bezrukov, L.; Blucher, E.; Brugière, T.; Buck, C.; Busenitz, J.; Cabrera, A.; Camilleri, L.; Cerrada, M.; Chauveau, E.; Chimenti, P.; Corpace, O.; Crespo-Anadón, J. I.; Dawson, J.; Djurcic, Z.; Etenko, A.; Fallot, M.; Franco, D.; Furuta, H.; Gil-Botella, I.; Givaudan, A.; Gómez, H.; Gonzalez, L. F. G.; Goodman, M. C.; Hara, T.; Haser, J.; Hellwig, D.; Hourlier, A.; Ishitsuka, M.; Jochum, J.; Jollet, C.; Kale, K.; Kampmann, Philipp; Kaneda, M.; Kawasaki, T.; Kemp, E.; Kerret, H. de; Kryn, D.; Kuze, M.; Lachenmaier, T.; Lane, C.; Lasserre, T.; Lastoria, C.; Lhuillier, D.; Lima, H. P.; Lindner, M.; López-Castaño, J. M.; LoSecco, J. M.; Лубсандоржиев, Б.; Maeda, J.; Mariani, C.; Maricic, J.; Matsubara, Takahiko; Mention, G.; Meregaglia, A.; Miletic, T.; Milinčić, R.; Minotti, A.; Navas-Nicolás, D.; Novella, P.; Oberauer, L.; Obolensky, M.; Onillón, A.; Oralbaev, A.; Palomares, C.; Pepe, I. M.; Pronost, G.; Reinhold, B.; Santorelli, R.; Schönert, S.; Schoppmann, S.; Settimo, M.; Sharankova, R.; Sibille, V.; Sinev, V. V.; Skorokhvatov, M.; Soldin, P.; Stahl, A.; Stancu, I.; Stokes, L. F. F.; Suekane, F.; Sumiyoshi, T.; Sun, Yujing; Tonazzo, A.; Veyssiére, C.; Viaud, B.; Vivier, M.; Wagner, S. J.; Wiebusch, C. H.; Yang, G.; Yermia, F.

doi:10.1088/1748-0221/13/01/p01031

Cited by 5 publications

(7 citation statements)

References 9 publications

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“…where L ≃ ∆t is the distance between a neutrino source and neutrino detector. For "atmospheric" and "solar" mass-squared differences ∆m 2 A ≃ 2.4 · 10 −3 eV 2 and ∆m 2 S ≃ 7.5 · 10 −5 eV 2 the condition (16) is satisfied in the atmospheric Super-Kamiokande [1] , long baseline accelerator K2K [4], MINOS [5], T2K [6], reactor KamLAND [3], Daya Bay [7], RENO [8] Double Chooze [9] and other neutrino oscillation experiments.…”

Section: Flavor Neutrino Statesmentioning

confidence: 99%

“…Neutrino oscillations were further studied in the long baseline accelerator K2K [4], MINOS [5] and T2K [6] experiments. With the measurement of the small parameter sin 2 θ 13 in the accelerator T2K [6], reactor Daya Bay [7], RENO [8] and Double Chooze [9] experiments investigation of neutrino oscillations enters into a new era, era of high precision measurements. The 2015 Nobel Prize to T. Kajita and A. McDonald "for the discovery of neutrino oscillations, which shows that neutrinos have mass" is a very important event for the neutrino community which will attract new people and give a great boost to the field.…”

Section: Introduction On the History Of Neutrino Oscillationsmentioning

confidence: 99%

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Neutrino oscillations: from an historical perspective to the present status

Bilenky

2016

J. Phys.: Conf. Ser.

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Section: Flavor Neutrino Statesmentioning

confidence: 99%

Section: Introduction On the History Of Neutrino Oscillationsmentioning

confidence: 99%

Neutrino oscillations: from an historical perspective to the present status

Bilenky

2016

J. Phys.: Conf. Ser.

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“…The total waveform shape was used for a 𝜒 2 -based particle identification (PID). The Double Chooz experiment also superposed waveforms to extract PID information by Fourier transformation [27]. Samani et al [28] extracted pulse width from a raw waveform and use it as a PID discriminator.…”

Section: Waveform Shiftingmentioning

confidence: 99%

Towards the ultimate PMT waveform analysis for neutrino and dark matter experiments

Xu¹,

Xu²,

Bao³

et al. 2022

J. Inst.

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Photomultiplier tube (PMT) voltage waveforms are the raw data of many neutrino and dark matter experiments. Waveform analysis is the cornerstone of data processing. We evaluate the performance of all the waveform analysis algorithms known to us and find fast stochastic matching pursuit the best in accuracy. Significant time (up to × 2) and energy (up to × 1.07) resolution boosts are attainable with fast stochastic matching pursuit, approaching theoretical limits. Other methods also outperform the traditional threshold crossing approach in time resolution.

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“…In the Gariazzo study [23] only the magnitude analysis for the ILL experiment is used. They find a 2.9 σ indication of a fourth antineutrino after including results from the NEOS experiment, and the near detector data from the Daya Bay [24], RENO [25], and Double CHOOZ [26] experiments were also included. They find that the existence of a fourth antineutrino is indicated at a 3.1 σ level when these additional data are included.…”

Section: Introductionmentioning

confidence: 99%

Neutrino oscillations: The ILL experiment revisited

et al. 2019

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The ILL experiment, one of the "reactor anomaly" experiments, is re-examined. ILL's baseline of 8.78 m is the shortest of the reactor anomaly short baseline experiments, and it is the experiment that finds the largest fraction of the electron antineutrinos disappearing -about 20%. Previous analyses, if they do not ignore the ILL experiment, use functional forms for chisquare which are either totally new and unjustified, are the magnitude chisquare (also termed a "rate analysis"), or utilize a spectral form for chisquare which double counts the systematic error. We do an analysis which utilizes the standard, conventional form for chisquare as well as a derived functional form for a spectral chisquare. We find that when analyzed with a conventional chisquare that includes spectral information or with a spectral chisquare that is independent of the magnitude of the flux, the results are a set of specific values for possible mass-squared differences of the fourth neutrino and where the minimum chisquare difference values are significantly enhanced over previous analyses of the ILL experiment. For the Huber flux and the conventional chisquare, the two most preferred values are mass-squared differences of 0.90 and 2.36 eV 2 preferred at ∆χ 2 min values of -12.1 and -13.0 (3.5 and 3.6 σ), respectively. For the Daya Bay flux and conventional chisquare we find 0.95 and 2.36 eV 2 preferred at ∆χ 2 min of -8.22 and -9.45 (2.9 and 3.1 σ), respectively. For the spectral chisquare and either flux these values are 0.95 and 2.36 eV 2 preferred at ∆χ 2 min of -10.5 and -11.7(3.2 and 3.4 σ), respectively. These are to be compared to -4.4 (2.1 σ) found in the original reactor anomaly anaysis for all of the experiments excepting the ILL experiment.

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Novel event classification based on spectral analysis of scintillation waveforms in Double Chooz

Cited by 5 publications

References 9 publications

Neutrino oscillations: from an historical perspective to the present status

Neutrino oscillations: from an historical perspective to the present status

Towards the ultimate PMT waveform analysis for neutrino and dark matter experiments

Neutrino oscillations: The ILL experiment revisited

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