Search

Your search keyword '"Stipčević M"' showing total 29 results
Start Over Author "Stipčević M" Topic physics - instrumentation and detectors
29 results on '"Stipčević M"'

1. Design and performance of the ENUBET monitored neutrino beam

Author

Acerbi, F., Angelis, I., Bomben, L., Bonesini, M., Bramati, F., Branca, A., Brizzolari, C., Brunetti, G., Calviani, M., Capelli, S., Carturan, S., Catanesi, M. G., Cecchini, S., Charitonidis, N., Cindolo, F., Cogo, G., Collazuol, G., Corso, F. Dal, Delogu, C., De Rosa, G., Falcone, A., Goddard, B., Gola, A., Guffanti, D., Halić, L., Iacob, F., Jollet, C., Kain, V., Kallitsopoulou, A., Kliček, B., Kudenko, Y., Lampoudis, Ch., Laveder, M., Legou, P., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Marangoni, S., Margotti, A., Mascagna, V., Mauri, N., McElwee, J., Meazza, L., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Papaevangelou, T., Parozzi, E. G., Pasqualini, L., Paternoster, G., Patrizii, L., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Ruggeri, A. C., Saibene, G., Sampsonidis, D., Scian, C., Sirri, G., Stipčević, M., Tenti, M., Terranova, F., Torti, M., Tzamarias, S. E., Vallazza, E., Velotti, F., and Votano, L.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Accelerator Physics, Physics - Instrumentation and Detectors
Abstract

The ENUBET project is aimed at designing and experimentally demonstrating the concept of monitored neutrino beams. These novel beams are enhanced by an instrumented decay tunnel, whose detectors reconstruct large-angle charged leptons produced in the tunnel and give a direct estimate of the neutrino flux at the source. These facilities are thus the ideal tool for high-precision neutrino cross-section measurements at the GeV scale because they offer superior control of beam systematics with respect to existing facilities. In this paper, we present the first end-to-end design of a monitored neutrino beam capable of monitoring lepton production at the single particle level. This goal is achieved by a new focusing system without magnetic horns, a 20 m normal-conducting transfer line for charge and momentum selection, and a 40 m tunnel instrumented with cost-effective particle detectors. Employing such a design, we show that percent precision in cross-section measurements can be achieved at the CERN SPS complex with existing neutrino detectors., Comment: 24 pages, 33 figures

Published
2023

2. The ESSnuSB design study: overview and future prospects

Author

ESSnuSB Collaboration, Alekou, A., Baussan, E., Bhattacharyya, A. K., Kraljevic, N. Blaskovic, Blennow, M., Bogomilov, M., Bolling, B., Bouquerel, E., Bramati, F., Branca, A., Buchan, O., Burgman, A., Carlile, C. J., Cederkall, J., Choubey, S., Christiansen, P., Collins, M., Morales, E. Cristaldo, D'Alessi, L., Danared, H., Dancila, D., de André, J. P. A. M., Delahaye, J. P., Dracos, M., Efthymiopoulos, I., Ekelöf, T., Eshraqi, M., Fanourakis, G., Farricker, A., Fernandez-Martinez, E., Folsom, B., Fukuda, T., Gazis, N., Gålnander, B., Geralis, Th., Ghosh, M., Giarnetti, A., Gokbulut, G., Halić, L., Jenssen, M., Johansson, R., Topaksu, A. Kayis, Kildetoft, B., Kliček, B., Kozioł, M., Krhač, K., Łacny, Ł., Lindroos, M., Longhin, A., Maiano, C., Marangoni, S., Marrelli, C., Martins, C., Meloni, D., Mezzetto, M., Milas, N., Oglakci, M., Ohlsson, T., Olvegård, M., Ota, T., Pari, M., Park, J., Patrzalek, D., Petkov, G., Poussot, P., Pupilli, F., Rosauro-Alcaraz, S., Saiang, D., Snamina, J., Sosa, A., Stavropoulos, G., Stipčević, M., Szybiński, B., Tarkeshian, R., Terranova, F., Thomas, J., Tolba, T., Trachanas, E., Tsenov, R., Vankova-Kirilova, G., Vassilopoulos, N., Wildner, E., Wurtz, J., Zormpa, O., and Zou, Y.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract

ESSnuSB is a design study for an experiment to measure the CP violation in the leptonic sector at the second neutrino oscillation maximum using a neutrino beam driven by the uniquely powerful ESS linear accelerator. The reduced impact of systematic errors on sensitivity at the second maximum allows for a very precise measurement of the CP violating parameter. This review describes the fundamental advantages of measurement at the 2nd maximum, the necessary upgrades to the ESS linac in order to produce a neutrino beam, the near and far detector complexes, the expected physics reach of the proposed ESSnuSB experiment, concluding with the near future developments aimed at the project realization., Comment: 19 pages, 12 figures; Final version after review by the Universe journal

Published
2023
Full Text
View/download PDF

3. Particle Physics at the European Spallation Source

Author

Abele, H., Alekou, A., Algora, A., Andersen, K., Baessler, S., Barron-Palos, L., Barrow, J., Baussan, E., Bentley, P., Berezhiani, Z., Bessler, Y., Bhattacharyya, A. K., Bianchi, A., Bijnens, J., Blanco, C., Kraljevic, N. Blaskovic, Blennow, M., Bodek, K., Bogomilov, M., Bohm, C., Bolling, B., Bouquerel, E., Brooijmans, G., Broussard, L. J., Buchan, O., Burgman, A., Calen, H., Carlile, C. J., Cederkall, J., Chanel, E., Christiansen, P., Cirigliano, V., Collar, J. I., Collins, M., Crawford, C. B., Morales, E. Cristaldo, Cupial, P., D'Alessi, L., Damian, J. I. M., Danared, H., Dancila, D., de Andre, J. P. A. M., Delahaye, J. P., Degenkolb, S., Di Julio, D. D., Dracos, M., Dunne, K., Efthymiopoulos, I., Ekelof, T., Eklund, L., Eshraqi, M., Esteban, I., Fanourakis, G., Farricker, A., Fernandez-Martinez, E., Ferreira, M. J., Fertl, M., Fierlinger, P., Folsom, B., Frank, A., Fratangelo, A., Friman-Gayer, U., Fukuda, T., Fynbo, H . O . U., Sosa, A. Garcia, Gazis, N., Galnander, B., Geralis, Th., Ghosh, M., Gokbulut, G., Gomez-Cadenas, J . J., Gonzalez-Alonso, M., Gonzalez, F., Halic, L., Happe, C., Heil, P., Heinz, A., Herde, H., Holl, M., Jenke, T., Jenssen, M., Jericha, E., Johansson, H. T., Johansson, R., Johansson, T., Kamyshkov, Y., Topaksu, A. Kayis, Kildetoft, B., Kirch, K., Klicek, B., Klinkby, E., Kolevatov, R., Konrad, G., Koziol, M., Krhac, K., Kupsc, A., Lacny, L., Larizgoitia, L., Lewis, C. M., Lindroos, M., Lychagin, E., Lytken, E., Maiano, C., Marciniewski, P., Markaj, G., Markisch, B., Marrelli, C., Martins, C., Meirose, B., Mezzetto, M., Milas, N., Milstead, D., Monrabal, F., Muhrer, G., Nepomuceno, A., Nesvizhevsky, V., Nilsson, T., Novella, P., Oglakci, M., Ohlsson, T., Olvegard, M., Oskarsson, A., Ota, T., Park, J., Patrzalek, D., Perrey, H., Persoz, M., Petkov, G., Piegsa, F. M., Pistillo, C., Poussot, P., Privitera, P., Rataj, B., Ries, D., Rizzi, N., Rosauro-Alcaraz, S., Rozpedzik, D., Saiang, D., Santoro, V., Schmidt, U., Schober, H., Schulthess, I., Silverstein, S., Simon, A., Sina, H., Snamina, J., Snow, W. M., Soldner, T., Stavropoulos, G., Stipcevic, M., Szybinski, B., Takibayev, A., Tang, Z., Tarkeshian, R., Theroine, C., Thorne, J., Terranova, F., Thomas, J., Tolba, T., Torres-Sanchez, P., Trachanas, E., Tsenov, R., Uggerhoj, U. I., Vankova-Kirilova, G., Vassilopoulos, N., Wagner, R., Wang, X., Wildner, E., Wolke, M., Wurtz, J., Yiu, S. C., Yoon, S. G., Young, A. R., Zanini, L., Zejma, J., Zerzion, D., Zimmer, O., Zormpa, O., and Zou, Y.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment
Abstract

Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will be the world's brightest neutron source. As such, it has the potential for a particle physics program with a unique reach and which is complementary to that available at other facilities. This paper describes proposed particle physics activities for the ESS. These encompass the exploitation of both the neutrons and neutrinos produced at the ESS for high precision (sensitivity) measurements (searches)., Comment: 121 pages, updated version after referee comments

Published
2022
Full Text
View/download PDF

4. Updated physics performance of the ESSnuSB experiment

Author

Alekou, A., Baussan, E., Kraljevic, N. Blaskovic, Blennow, M., Bogomilov, M., Bouquerel, E., Burgman, A., Carlile, C. J., Cederkall, J., Christiansen, P., Collins, M., Morales, E. Cristaldo, D'Alessi, L., Danared, H., de André, J. P. A. M., Delahaye, J. P., Dracos, M., Efthymiopoulos, I., Ekelöf, T., Eshraqi, M., Fanourakis, G., Fernandez-Martinez, E., Folsom, B., Ghosh, M., Gokbulut, G., Halić, L., Topaksu, A. Kayis, Kliček, B., Krhač, K., Lindroos, M., Mezzetto, M., Oglakci, M., Ohlsson, T., Olvegård, M., Ota, T., Park, J., Petkov, G., Poussot, P., Rosauro-Alcaraz, S., Stavropoulos, G., Stipčević, M., Terranova, F., Thomas, J., Tolba, T., Tsenov, R., Vankova-Kirilova, G., Vassilopoulos, N., Wildner, E., Wurtz, J., Zormpa, O., and Zou, Y.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract

In this paper, we present the physics performance of the ESSnuSB experiment in the standard three flavor scenario using the updated neutrino flux calculated specifically for the ESSnuSB configuration and updated migration matrices for the far detector. Taking conservative systematic uncertainties corresponding to a normalization error of $5\%$ for signal and $10\%$ for background, we find that there is $10\sigma$ $(13\sigma)$ CP violation discovery sensitivity for the baseline option of 540 km (360 km) at $\delta_{\rm CP} = \pm 90^\circ$. The corresponding fraction of $\delta_{\rm CP}$ for which CP violation can be discovered at more than $5 \sigma$ is $70\%$. Regarding CP precision measurements, the $1\sigma$ error associated with $\delta_{\rm CP} = 0^\circ$ is around $5^\circ$ and with $\delta_{\rm CP} = -90^\circ$ is around $14^\circ$ $(7^\circ)$ for the baseline option of 540 km (360 km). For hierarchy sensitivity, one can have $3\sigma$ sensitivity for 540 km baseline except $\delta_{\rm CP} = \pm 90^\circ$ and $5\sigma$ sensitivity for 360 km baseline for all values of $\delta_{\rm CP}$. The octant of $\theta_{23}$ can be determined at $3 \sigma$ for the values of: $\theta_{23} > 51^\circ$ ($\theta_{23} < 42^\circ$ and $\theta_{23} > 49^\circ$) for baseline of 540 km (360 km). Regarding measurement precision of the atmospheric mixing parameters, the allowed values at $3 \sigma$ are: $40^\circ < \theta_{23} < 52^\circ$ ($42^\circ < \theta_{23} < 51.5^\circ$) and $2.485 \times 10^{-3}$ eV$^2 < \Delta m^2_{31} < 2.545 \times 10^{-3}$ eV$^2$ ($2.49 \times 10^{-3}$ eV$^2 < \Delta m^2_{31} < 2.54 \times 10^{-3}$ eV$^2$) for the baseline of 540 km (360 km)., Comment: 13 pages, 8 figures, 3 tables. Changes: Text updated, this is a published version

Published
2021
Full Text
View/download PDF

5. The ENUBET positron tagger prototype: construction and testbeam performance

Author

Acerbi, F., Bonesini, M., Bramati, F., Branca, A., Brizzolari, C., Brunetti, G., Capelli, S., Carturan, S., Catanesi, M. G., Cecchini, S., Cindolo, F., Collazuol, G., Conti, E., Corso, F. Dal, Delogu, C., De Rosa, G., Falcone, A., Gola, A., Jollet, C., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meazza, L., Meregaglia, A., Mezzetto, M., Paoloni, A., Pari, M., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggeri, A. C., Scian, C., Sirri, G., Stipcevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., and Votano, L.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

A prototype for the instrumented decay tunnel of ENUBET was tested in 2018 at the CERN East Area facility with charged particles up to 5 GeV. This detector is a longitudinal sampling calorimeter with lateral scintillation light readout. The calorimeter was equipped by an additional "$t_0$-layer" for timing and photon discrimination. The performance of this detector in terms of electron energy resolution, linearity, response to muons and hadron showers are presented in this paper and compared with simulation. The $t_0$-layer was studied both in standalone mode using pion charge exchange and in combined mode with the calorimeter to assess the light yield and the 1 mip/2 mip separation capability. We demonstrate that this system fulfills the requirements for neutrino physics applications and discuss performance and additional improvements., Comment: 23 pages, 20 figures, to appear in JINST

Published
2020
Full Text
View/download PDF

6. The hadronic beamline of the ENUBET neutrino beam

Author

ENUBET collaboration, Delogu, C., Acerbi, F., Berra, A., Bonesini, M., Branca, A., Brizzolari, C., Brunetti, G., Calviani, M., Capelli, S., Carturan, S., Catanesi, M. G., Cecchini, S., Charitonidis, N., Cindolo, F., Collazuol, G., Conti, E., Corso, F. Dal, De Rosa, G., Falcone, A., Gola, A., Jollet, C., Kain, V., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meazza, L., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggeri, A. C., Scian, C., Sirri, G., Stipcevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., Velotti, F., Vesco, M., and Votano, L.

Subjects
Physics - Accelerator Physics, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The ENUBET ERC project (2016-2021) is studying a facility based on a narrow band beam capable of constraining the neutrino fluxes normalization through the monitoring of the associated charged leptons in an instrumented decay tunnel. A key element of the project is the design and optimization of the hadronic beamline. In this proceeding we present progress on the studies of the proton extraction schemes. We also show a realistic implementation and simulation of the beamline., Comment: Poster presented at NuPhys2019 (London, 16-18 December 2019). 4 pages, 4 figures. Typo in author list corrected

Published
2020

7. Decay tunnel instrumentation for the ENUBET neutrino beam

Author

Acerbi, F., Berra, A., Bonesini, M., Branca, A., Brizzolari, C., Brunetti, G., Calviani, M., Capelli, S., Carturan, S., Catanesi, M. G., Cecchini, S., Charitonidis, N., Cindolo, F., Collazuol, G., Conti, E., Corso, F. Dal, Delogu, C., De Rosa, G., Falcone, A., Gola, A., Jollet, C., Kain, V., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meazza, L., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggieri, A. C., Scian, C., Sirri, G., Stipcevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., Velotti, F., Vesco, M., and Votano, L.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The uncertainty in the initial neutrino flux is the main limitation for a precise determination of the absolute neutrino cross section. The ERC funded ENUBET project (2016-2021) is studying a facility based on a narrow band beam to produce an intense source of electron neutrinos with a ten-fold improvement in accuracy. Since March 2019 ENUBET is also a Neutrino Platform experiment at CERN: NP06/ENUBET. A key element of the project is the instrumentation of the decay tunnel to monitor large angle positrons produced together with $\nu_e$ in the three body decays of kaons ($K_{e3}$) and to discriminate them from neutral and charged pions. The need for an efficient and high purity e/$\pi$ separation over a length of several meters, and the requirements for fast response and radiation hardness imposed by the harsh beam environment, suggested the implementation of a longitudinally segmented Fe/scintillator calorimeter with a readout based on WLS fibers and SiPM detectors. An extensive experimental program through several test beam campaigns at the CERN-PS T9 beam line has been pursued on calorimeter prototypes, both with a shashlik and a lateral readout configuration. The latter, in which fibers collect the light from the side of the scintillator tiles, allows to place the light sensors away from the core of the calorimeter, thus reducing possible irradiation damages with respect to the shashlik design. This contribution will present the achievements of the prototyping activities carried out, together with irradiation tests made on the Silicon Photo-Multipliers. The results achieved so far pin down the technology of choice for the construction of the 3 m long demonstrator that will take data in 2021., Comment: Talk presented at the "15th Topical Seminar on Innovative Particle and Radiation Detectors (IPRD19)", 14-17 October 2019. Siena, Italy. 9 pages, 7 figures

Published
2020
Full Text
View/download PDF

8. Polysiloxane-based scintillators for shashlik calorimeters

Author

Acerbi, F., Branca, A., Brizzolari, C., Brunetti, G., Carturan, S., Catanesi, M. G., Cecchini, S., Cindolo, F., Collazuol, G., Corso, F. Dal, De Rosa, G., Delogu, C., Falcone, A., Gola, A., Jollet, C., Kliček, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Lutsenko, E., Magaletti, L., Mandrioli, G., Marchi, T., Margotti, A., Mascagna, V., Meregaglia, A., Mezzetto, M., Nessi, M., Pari, M., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Piemonte, C., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggeri, A. C., Scian, C., Sirri, G., Stipčevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., and Vesco, M.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

We present the first application of polysiloxane-based scintillators as active medium in a shashlik sampling calorimeter. These results were obtained from a testbeam campaign of a $\sim$6$\times$6$\times$45 cm$^3$ (13 $X_0$ depth) prototype. A Wavelength Shifting fiber array of 36 elements runs perpendicularly to the stack of iron (15 mm) and polysiloxane scintillator (15 mm) tiles with a density of about one over cm$^2$. Unlike shashlik calorimeters based on plastic organic scintillators, here fibers are optically matched with the scintillator without any intermediate air gap. The prototype features a compact light readout based on Silicon Photo-Multipliers embedded in the bulk of the detector. The detector was tested with electrons, pions and muons with energies ranging from 1 to 7 GeV at the CERN-PS. This solution offers a highly radiation hard detector to instrument the decay region of a neutrino beam, providing an event-by-event measurement of high-angle decay products associated with neutrino production (ENUBET, Enhanced NeUtrino BEams from kaon Tagging, ERC project). The results in terms of light yield, uniformity and energy resolution, are compared to a similar calorimeter built with ordinary plastic scintillators., Comment: 28 pages, 16 figures. To appear in NIM-A

Published
2020
Full Text
View/download PDF

9. Final results on neutrino oscillation parameters from the OPERA experiment in the CNGS beam

Author

OPERA Collaboration, Agafonova, N., Alexandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bertolin, A., Bozza, C., Brugnera, R., Buontempo, S., Chernyavskiy, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Gentile, V., Goldberg, J., Gorbunov, S., Gornushkin, Y., Grella, G., Guler, A. M., Gustavino, C., Hagner, C., Hara, T., Hayakawa, T., Hollnagel, A., Ishiguro, K., Iuliano, A., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kim, S. H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laudisio, F., Lauria, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Miyanishi, M., Mizutani, F., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Niwa, K., Ogawa, S., Okateva, N., Ozaki, K., Paoloni, A., Paparella, L., Park, B. D., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Shibayama, E., Shibuya, H., Shiraishi, T., Simone, S., Sirignano, C., Sirri, G., Sotnikov, A., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vasina, S., Vilain, P., Voevodina, E., Votano, L., Vuilleumier, J. L., Wilquet, G., and Yoon, C. S.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The OPERA experiment has conclusively observed the appearance of tau neutrinos in the muon neutrino CNGS beam. Exploiting the OPERA detector capabilities, it was possible to isolate high purity samples of $\nu_{e}$, $\nu_{\mu}$ and $\nu_{\tau}$ charged current weak neutrino interactions, as well as neutral current weak interactions. In this Letter, the full dataset is used for the first time to test the three-flavor neutrino oscillation model and to derive constraints on the existence of a light sterile neutrino within the framework of the $3+1$ neutrino model. For the first time, tau and electron neutrino appearance channels are jointly used to test the sterile neutrino hypothesis. A significant fraction of the sterile neutrino parameter space allowed by LSND and MiniBooNE experiments is excluded at 90% C.L. In particular, the best-fit values obtained by MiniBooNE combining neutrino and antineutrino data are excluded at 3.3 $\sigma$ significance., Comment: 7 pages, 4 figures; Editors: Budimir Kli\v{c}ek and Matteo Tenti

Published
2019
Full Text
View/download PDF

10. The ENUBET narrow band neutrino beam

Author

ENUBET Collaboration, Tenti, M., Acerbi, F., Ballerini, G., Bonesini, M., Brizzolari, C., Calviani, G. Brunetti M., Carturan, S., Catanesi, M. G., Cecchini, S., Cindolo, F., Collazuol, G., Corso, E. Conti F. Dal, De Rosa, G., Delogu, C., Falcone, A., Goddard, B., Gola, A., Intonti, R. A., Jollet, C., Kain, V., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Loverre, P. F., Ludovici, L., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Piemonte, C., Pozzato, M., Pupilli, F., Prest, M., Radicioni, E., Riccio, C., Ruggeri, A. C., Sirri, G., Soldani, M., Stipcevic, M., Terranova, F., Torti, M., Vallazza, E., Velotti, F., Vesco, M., and Votano, L.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Physics - Accelerator Physics
Abstract

The narrow band beam of ENUBET is the first implementation of the "monitored neutrino beam" technique proposed in 2015. ENUBET has been designed to monitor lepton production in the decay tunnel of neutrino beams and to provide a 1% measurement of the neutrino flux at source. In particular, the three body semi-leptonic decay of kaons monitored by large angle positron production offers a fully controlled $\nu_{e}$ source at the GeV scale for a new generation of short baseline experiments. In this contribution the performances of the positron tagger prototypes tested at CERN beamlines in 2016-2018 are presented., Comment: Poster presented at NuPhys2018 (London 19-21 December 2018). 5 pages, 3 figures

Published
2019

11. The ENUBET Beamline

Author

ENUBET Collaboration, Brunetti, G., Acerbi, F., Ballerini, G., Bonesini, M., Branca, A., Brizzolari, C., Calviani, M., Carturan, S., Catanesi, M. G., Cecchini, S., Cindolo, F., Collazuol, G., Conti, E., Corso, F. Dal, De Rosa, G., Delogu, C., Falcone, A., Goddard, B., Gola, A., Intonti, R. A., Jollet, C., Kain, V., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Piemonte, C., Pozzato, M., Prest, M., Pupilli, F., Radicioni, E., Riccio, C., Ruggeri, A. C., Sirri, G., Soldani, M., Stipcevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., Velotti, F., Vesco, M., and Votano, L.

Subjects
Physics - Accelerator Physics, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The ENUBET ERC project (2016-2021) is studying a narrow band neutrino beam where lepton production can be monitored at single particle level in an instrumented decay tunnel. This would allow to measure $\nu_{\mu}$ and $\nu_{e}$ cross sections with a precision improved by about one order of magnitude compared to present results. In this proceeding we describe a first realistic design of the hadron beamline based on a dipole coupled to a pair of quadrupole triplets along with the optimisation guidelines and the results of a simulation based on G4beamline. A static focusing design, though less efficient than a horn-based solution, results several times more efficient than originally expected. It works with slow proton extractions reducing drastically pile-up effects in the decay tunnel and it paves the way towards a time-tagged neutrino beam. On the other hand a horn-based transferline would ensure higher yields at the tunnel entrance. The first studies conducted at CERN to implement the synchronization between a few ms proton extraction and a horn pulse of 2-10 ms are also described., Comment: Poster presented at NuPhys2018 (London 19-21 December 2018). 4 pages, 3 figures

Published
2019

12. A high precision neutrino beam for a new generation of short baseline experiments

Author

Acerbi, F., Ballerini, G., Bolognesi, S., Bonesini, M., Brizzolari, C., Brunetti, G., Carturan, S., Catanesi, M. G., Cecchini, S., Cindolo, F., Collazuol, G., Conti, E., Corso, F. Dal, De Rosa, G., Di Lodovico, F., Delogu, C., Falcone, A., Gola, A., Intonti, R. A., Jollet, C., Klicek, B., Kudenko, Y., Laveder, M., Longhin, A., Ludovici, L., Magaletti, L., Mandrioli, G., Margotti, A., Mascagna, V., Mauri, N., Meregaglia, A., Mezzetto, M., Nessi, M., Paoloni, A., Pari, M., Parozzi, E., Pasqualini, L., Paternoster, G., Patrizii, L., Piemonte, C., Pozzato, M., Pupilli, F., Prest, M., Radicioni, E., Riccio, C., Ruggeri, A. C., Nieto, F. Sanchez, Sirri, G., Soldani, M., Stipcevic, M., Tenti, M., Terranova, F., Torti, M., Vallazza, E., Vesco, M., and Votano, L.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Physics - Accelerator Physics
Abstract

The current generation of short baseline neutrino experiments is approaching intrinsic source limitations in the knowledge of flux, initial neutrino energy and flavor. A dedicated facility based on conventional accelerator techniques and existing infrastructures designed to overcome these impediments would have a remarkable impact on the entire field of neutrino oscillation physics. It would improve by about one order of magnitude the precision on $\nu_\mu$ and $\nu_e$ cross sections, enable the study of electroweak nuclear physics at the GeV scale with unprecedented resolution and advance searches for physics beyond the three-neutrino paradigm. In turn, these results would enhance the physics reach of the next generation long baseline experiments (DUNE and Hyper-Kamiokande) on CP violation and their sensitivity to new physics. In this document, we present the physics case and technology challenge of high precision neutrino beams based on the results achieved by the ENUBET Collaboration in 2016-2018. We also set the R&D milestones to enable the construction and running of this new generation of experiments well before the start of the DUNE and Hyper-Kamiokande data taking. We discuss the implementation of this new facility at three different level of complexity: $\nu_\mu$ narrow band beams, $\nu_e$ monitored beams and tagged neutrino beams. We also consider a site specific implementation based on the CERN-SPS proton driver providing a fully controlled neutrino source to the ProtoDUNE detectors at CERN., Comment: 13 pages, 3 figures, submitted as an input document for the European Particle Physics Strategy. Dec. 2018

Published
2019

13. Latest results of the OPERA experiment on nu-tau appearance in the CNGS neutrino beam

Author

Agafonova, N., Alexandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Chernyavskiy, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Favier, J., Fini, R. A., Fornari, F., Fukuda, T., Galati, G., Garfagnini, A., Gentile, V., Goldberg, J., Gorbunov, S., Gornushkin, Y., Grella, G., Guler, A. M., Gustavino, C., Hagner, C., Hara, T., Hayakawa, T., Hollnagel, A., Ishiguro, K., Iuliano, A., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kim, S. H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laudisio, F., Lauria, A., Longhin, A., Loverre, P., Malenica, M., Malgin, A., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Miyanishi, M., Mizutani, F., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Niwa, K., Ogawa, S., Olchevsky, A., Okateva, N., Ozaki, K., Paoloni, A., Paparella, L., Park, B. D., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Ryazhskaya, O., Sadovsky, A., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Shibayama, E., Shibuya, H., Shiraishi, T., Simone, S., Sirignano, C., Sirri, G., Sotnikov, A., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Ustyuzhanin, A., Vasina, S., Vilain, P., Voevodina, E., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., and Yoon, C. S.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

OPERA is a long-baseline experiment designed to search for $\nu_{\mu}\to\nu_{\tau}$ oscillations in appearance mode. It was based at the INFN Gran Sasso laboratory (LNGS) and took data from 2008 to 2012 with the CNGS neutrino beam from CERN. After the discovery of $\nu_\tau$ appearance in 2015, with $5.1\sigma$ significance, the criteria to select $\nu_\tau$ candidates have been extended and a multivariate approach has been used for events identification. In this way the statistical uncertainty in the measurement of the oscillation parameters and of $\nu_\tau$ properties has been improved. Results are reported., Comment: 7 pages, 1 figure, conference: The 15th International Workshop on Tau Lepton Physics (tau2018)AB

Published
2018

14. Measurement of the cosmic ray muon flux seasonal variation with the OPERA detector

Author

Agafonova, N., Alexandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Chernyavskiy, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R. A., Fornari, F., Fukuda, T., Galati, G., Garfagnini, A., Gentile, V., Goldberg, J., Gorbunov, S., Gornushkin, Y., Grella, G., Guler, A. M., Gustavino, C., Hagner, C., Hara, T., Hayakawa, T., Hollnagel, A., Ishiguro, K., Iuliano, A., Jakovčić, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kim, S. H., Kitagawa, N., Kliček, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laudisio, F., Lauria, A., Ljubičić, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Miyanishi, M., Mizutani, F., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Niwa, K., Ogawa, S., Okateva, N., Ozaki, K., Paoloni, A., Paparella, L., Park, B. D., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Shibayama, E., Shibuya, H., Shiraishi, T., Simone, S., Sirignano, C., Sirri, G., Sotnikov, A., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipčević, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Vasina, S., Vilain, P., Voevodina, E., Votano, L., Vuilleumier, J. L., Wilquet, G., and Yoon, C. S.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The OPERA experiment discovered muon neutrino into tau neutrino oscillations in appearance mode, detecting tau leptons by means of nuclear emulsion films. The apparatus was also endowed with electronic detectors with tracking capability, such as scintillator strips and resistive plate chambers. Because of its location, in the underground Gran Sasso laboratory, under 3800 m.w.e., the OPERA detector has also been used as an observatory for TeV muons produced by cosmic rays in the atmosphere. In this paper the measurement of the single muon flux modulation and of its correlation with the seasonal variation of the atmospheric temperature are reported.

Published
2018
Full Text
View/download PDF

15. Final results of the search for $\nu_{\mu} \to \nu_{e}$ oscillations with the OPERA detector in the CNGS beam

Author

OPERA Collaboration, Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Chernyavskiy, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Favier, J., Fini, R. A., Fornari, F., Fukuda, T., Galati, G., Garfagnini, A., Gentile, V., Goldberg, J., Gornushkin, Y., Gorbunov, S., Grella, G., Guler, A. M., Gustavino, C., Hagner, C., Hara, T., Hayakawa, T., Hollnagel, A., Hosseini, B., Ishiguro, K., Iuliano, A., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kim, S. H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laudisio, F., Lauria, A., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Malenica, M., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meisel, F., Meregaglia, A., Mikado, S., Miyanishi, M., Mizutani, F., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Niwa, K., Okateva, N., Ogawa, S., Ozaki, K., Paoloni, A., Paparella, L., Park, B. D., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Shibuya, H., Shibayama, E., Shiraishi, T., Simone, S., Sirignano, C., Sirri, G., Sotnikov, A., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Vasina, S., Vilain, P., Voevodina, E., Votano, L., Vuilleumier, J. L., Wilquet, G., and Yoon, C. S.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The OPERA experiment has discovered the tau neutrino appearance in the CNGS muon neutrino beam, in agreement with the 3 neutrino flavour oscillation hypothesis. The OPERA neutrino interaction target, made of Emulsion Cloud Chamber, was particularly efficient in the reconstruction of electromagnetic showers. Moreover, thanks to the very high granularity of the emulsion films, showers induced by electrons can be distinguished from those induced by $\pi^0$s, thus allowing the detection of charged current interactions of electron neutrinos. In this paper the results of the search for electron neutrino events using the full dataset are reported. An improved method for the electron neutrino energy estimation is exploited. Data are compatible with the 3 neutrino flavour mixing model expectations and are used to set limits on the oscillation parameters of the 3+1 neutrino mixing model, in which an additional mass eigenstate $m_{4}$ is introduced. At high $\Delta m^{2}_{41}$ $( \gtrsim 0.1~\textrm{eV}^{2})$, an upper limit on $\sin^2 2\theta_{\mu e}$ is set to 0.021 at 90% C.L. and $\Delta m^2_{41} \gtrsim 4 \times 10^{-3}~\textrm{eV}^{2}$ is excluded for maximal mixing in appearance mode., Comment: Editors: M. Tenti and S. Vasina

Published
2018

16. Search for Sterile Neutrinos in the Muon Neutrino Disappearance Mode at FNAL

Author

Anokhina, A., Bagulya, A., Benettoni, M., Bernardini, P., Brugnera, R., Calabrese, M., Cecchetti, A., Cecchini, S., Chernyavskiy, M., Corso, F. Dal, Dalkarov, O., Del Prete, A., De Robertis, G., De Serio, M., Di Ferdinando, D., Dusini, S., Dzhatdoev, T., Fini, R. A., Fiore, G., Garfagnini, A., Guerzoni, M., Klicek, B., Kose, U., Jakovcic, K., Laurenti, G., Lippi, I., Loddo, F., Longhin, A., Malenica, M., Mancarella, G., Mandrioli, G., Margiotta, A., Marsell, G., Mauri, N., Medinaceli, E., Mingazheva, R., Morgunova, O., Muciaccia, M. T., Nessi, M., Orecchini, D., Paoloni, A., Papadia, G., Paparella, L., Pasqualini, L., Pastore, A., Patrizii, L., Polukhina, N., Pozzato, M., Roda, M., Roganova, T., Rosa, G., Sahnoun, Z., Shchedrina, T., Simone, S., Sirignano, C., Sirri, G., Spurio, M., Stanco, L., Starkov, N., Stipcevic, M., Surdo, A., Tenti, M., Togo, V., and Vladymyrov, M.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The NESSiE Collaboration has been setup to undertake a conclusive experiment to clarify the {\em muon--neutrino disappearance} measurements at short baselines in order to put severe constraints to models with more than the three--standard neutrinos. To this aim the current FNAL--Booster neutrino beam for a Short--Baseline experiment was carefully evaluated by considering the use of magnetic spectrometers at two sites, near and far ones. The detector locations were studied, together with the achievable performances of two OPERA--like spectrometers. The study was constrained by the availability of existing hardware and a time--schedule compatible with the undergoing project of multi--site Liquid--Argon detectors at FNAL. The settled physics case and the kind of proposed experiment on the Booster neutrino beam would definitively clarify the existing tension between the $\nu_{\mu}$ disappearance and the $\nu_e$ appearance/disappearance at the eV mass scale. In the context of neutrino oscillations the measurement of $\nu_{\mu}$ disappearance is a robust and fast approach to either reject or discover new neutrino states at the eV mass scale. We discuss an experimental program able to extend by more than one order of magnitude (for neutrino disappearance) and by almost one order of magnitude (for antineutrino disappearance) the present range of sensitivity for the mixing angle between standard and sterile neutrinos. These extensions are larger than those achieved in any other proposal presented so far., Comment: 19 pages, published in EPJC

Published
2015
Full Text
View/download PDF

17. The NESSiE way to searches for sterile neutrinos at FNAL

Author

Stanco, L., Anokhina, A., Bagulya, A., Benettoni, M., Bernardini, P., Brugnera, R., Calabrese, M., Cecchetti, A., Cecchini, S., Chernyavskiy, M., Creti, P., Corso, F. Dal, Dalkarov, O., Del Prete, A., De Robertis, G., De Serio, M., Esposti, L. Degli, Di Ferdinando, D., Dusini, S., Dzhatdoev, T., Fanin, C., Fini, R. A., Fiore, G., Garfagnini, A., Golovanov, S., Guerzoni, M., Klicek, B., Kose, U., Jakovcic, K., Laurenti, G., Lippi, I., Loddo, F., Longhin, A., Malenica, M., Mancarella, G., Mandriol, G., Margiotta, A., Marsella, G., Mauri, N., Medinaceli, E., Mengucci, A., Mingazheva, R., Morgunova, O., Muciaccia, M. T., Nessi, M., Orecchini, D., Paoloni, A., Papadia, G., Paparella, L., Pasqualini, L., Pastore, A., Patrizii, L., Polukhina, N., Pozzato, M., Roda, M., Roganova, T., Rosa, G., Sahnoun, Z., Simone, S., Sirignano, C., Sirri, G., Spurio, M., Starkov, N., Stipcevic, M., Surdo, A., Tenti, M., Togo, V., Ventura, M., and Vladymyrov, M.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

Neutrino physics is nowadays receiving more and more attention as a possible source of information for the long-standing problem of new physics beyond the Standard Model. The recent measurement of the mixing angle $\theta_{13}$ in the standard mixing oscillation scenario encourages us to pursue the still missing results on leptonic CP violation and absolute neutrino masses. However, puzzling measurements exist that deserve an exhaustive evaluation. The NESSiE Collaboration has been setup to undertake conclusive experiments to clarify the muon-neutrino disappearance measurements at small $L/E$, which will be able to put severe constraints to models with more than the three-standard neutrinos, or even to robustly measure the presence of a new kind of neutrino oscillation for the first time. To this aim the use of the current FNAL-Booster neutrino beam for a Short-Baseline experiment has been carefully evaluated. Its recent proposal refers to the use of magnetic spectrometers at two different sites, Near and Far ones. Their positions have been extensively studied, together with the possible performances of two OPERA-like spectrometers. The proposal is constrained by availability of existing hardware and a time-schedule compatible with the undergoing project of a multi-site Liquid-Argon detectors at FNAL. The experiment to be possibly setup at Booster will allow to definitively clarify the current $\nu_{\mu}$ disappearance tension with $\nu_{e}$ appearance and disappearance at the eV mass scale., Comment: Proceeding of ICHEP2014, 2-7 July 2014, Valencia (Spain), 12 pages, 6 figures

Published
2014

18. Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment

Author

OPERA Collaboration, Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Büttner, B., Chernyavsky, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. Del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Goloubkov, D., Gornushkin, Y., Grella, G., Guler, M., Gustavino, C., Hagner, C., Hara, T., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kawada, J., Kim, J. H., Kim, S. H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Malenica, M., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Meyer, M., Mikado, S., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. D., Park, I. G., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Rostovtseva, I., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Zaitsev, Y., Zemskova, S., and Zghiche, A.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The OPERA long-baseline neutrino-oscillation experiment has observed the direct appearance of $\nu_\tau$ in the CNGS $\nu_\mu$ beam. Two large muon magnetic spectrometers are used to identify muons produced in the $\tau$ leptonic decay and in $\nu_\mu^{CC}$ interactions by measuring their charge and momentum. Besides the kinematic analysis of the $\tau$ decays, background resulting from the decay of charmed particles produced in $\nu_\mu^{CC}$ interactions is reduced by efficiently identifying the muon track. A new method for the charge sign determination has been applied, via a weighted angular matching of the straight track-segments reconstructed in the different parts of the dipole magnets. Results obtained for Monte Carlo and real data are presented. Comparison with a method where no matching is used shows a significant reduction of up to 40\% of the fraction of wrongly determined charges., Comment: 10 pages. Improvements in the text

Published
2014

19. Prospects for the measurement of muon-neutrino disappearance at the FNAL-Booster

Author

Anokhina, A., Bagulya, A., Benettoni, M., Bernardini, P., Brugnera, R., Calabrese, M., Cecchetti, A., Cecchini, S., Chernyavskiy, M., Creti, P., Corso, F. Dal, Dalkarov, O., Del Prete, A., De Robertis, G., De Serio, M., Esposti, L. Degli, Di Ferdinando, D., Dusini, S., Dzhatdoev, T., Fanin, C., Fini, R. A., Fiore, G., Garfagnini, A., Golovanov, S., Guerzoni, M., Klicek, B., Kose, U., Jakovcic, K., Laurent, G., Lippi, I., Loddo, F., Longhin, A., Malenica, M., Mancarella, G., Mandrioli, G., Margiotta, A., Marsella, G., Mauri, N., Medinaceli, E., Mengucci, A., Mingazheva, R., Morgunova, O., Muciaccia, M. T., Nessi, M., Orecchini, D., Paoloni, A., Papadia, G., Paparella, L., Pasqualini, L., Pastore, A., Patrizii, L., Polukhina, N., Pozzato, M., Roda, M., Roganova, T., Rosa, G., Sahnoun, Z., Simone, S., Sirignano, C., Sirri, G., Spurio, M., Stanco, L., Starkov, N., Stipcevic, M., Surdo, A., Tenti, M., Togo, V., Ventura, M., and Vladymyrov, M.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

Neutrino physics is nowadays receiving more and more attention as a possible source of information for the long-standing problem of new physics beyond the Standard Model. The recent measurement of the mixing angle $\theta_{13}$ in the standard mixing oscillation scenario encourages us to pursue the still missing results on leptonic CP violation and absolute neutrino masses. However, puzzling measurements exist that deserve an exhaustive evaluation. The NESSiE Collaboration has been setup to undertake conclusive experiments to clarify the muon-neutrino disappearance measurements at small $L/E$, which will be able to put severe constraints to models with more than the three-standard neutrinos, or even to robustly measure the presence of a new kind of neutrino oscillation for the first time. To this aim the use of the current FNAL-Booster neutrino beam for a Short-Baseline experiment has been carefully evaluated. This proposal refers to the use of magnetic spectrometers at two different sites, Near and Far. Their positions have been extensively studied, together with the possible performances of two OPERA-like spectrometers. The proposal is constrained by availability of existing hardware and a time-schedule compatible with the CERN project for a new more performant neutrino beam, which will nicely extend the physics results achievable at the Booster. The possible FNAL experiment will allow to clarify the current $\nu_{\mu}$ disappearance tension with $\nu_e$ appearance and disappearance at the eV mass scale. Instead, a new CERN neutrino beam would allow a further span in the parameter space together with a refined control of systematics and, more relevant, the measurement of the antineutrino sector, by upgrading the spectrometer with detectors currently under R&D study., Comment: 76 pages, 52 figures

Published
2014

20. Evidence for $\nu_\mu \to \nu_\tau$ appearance in the CNGS neutrino beam with the OPERA experiment

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Asada, T., Autiero, D., Dhahbi, A. Ben, Badertscher, A., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Brunet, F., Brunetti, G., Buonaura, A., Buontempo, S., Buettner, B., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. Del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Favier, J., Ferber, T., Ferone, G., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gustavino, C., Hagner, C., Hakamata, K., Hara, T., Hayakawa, T., Hierholzer, M., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Ishikawa, M., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kawada, J., Kawahara, H., Kim, J. H., Kim, S. H., Kimura, M., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Migliozzi, P., Mikado, S., Miyanishi, M., Miyashita, E., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Schmidt-Parzefal, W., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strauss, T., Strolin, P., Suzuki, K., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Yoshida, J., Yoshimoto, M., Zaitsev, Y., Zemskova, S., and Zghiche, A.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The OPERA experiment is designed to search for $\nu_{\mu} \rightarrow \nu_{\tau}$ oscillations in appearance mode i.e. through the direct observation of the $\tau$ lepton in $\nu_{\tau}$ charged current interactions. The experiment has taken data for five years, since 2008, with the CERN Neutrino to Gran Sasso beam. Previously, two $\nu_{\tau}$ candidates with a $\tau$ decaying into hadrons were observed in a sub-sample of data of the 2008-2011 runs. Here we report the observation of a third $\nu_\tau$ candidate in the $\tau^-\to\mu^-$ decay channel coming from the analysis of a sub-sample of the 2012 run. Taking into account the estimated background, the absence of $\nu_{\mu} \rightarrow \nu_{\tau}$ oscillations is excluded at the 3.4 $\sigma$ level., Comment: 9 pages, 5 figures, 1 tables

Published
2014
Full Text
View/download PDF

21. The NESSiE Concept for Sterile Neutrinos

Author

Stanco, L., Anokhina, A., Bagulya, A., Benettoni, M., Bernardini, P., Bertolin, A., Brugnera, R., Calabrese, M., Cecchetti, A., Cecchini, S., Chernyavskiy, M., Collazuol, G., Creti, P., Corso, F. Dal, Dalkarov, O., Del Prete, A., De Mitri, I., De Robertis, G., De Serio, M., Esposti, L. Degli, Di Ferdinando, D., Dore, U., Dusini, S., Dzhatdoev, T., Fanin, C., Fini, R. A., Fiore, G., Galati, G., Garfagnini, A., Giacomelli, G., Giacomelli, R., Golovanov, S., Guandalin, C., Guerzoni, M., Klicek, B., Kose, U., Jakovcic, K., Laurenti, G., Laveder, M., Lippi, I., Loddo, F., Longhin, A., Loverre, P., Malenica, M., Mancarella, G., Mandrioli, G., Margiotta, A., Marsella, G., Mauri, N., Medinaceli, E., Mengucci, A., Mezzetto, M., Michinelli, R., Mingazheva, R., Morgunova, O., Muciaccia, M. T., Orecchini, D., Paoloni, A., Papadia, G., Paparella, L., Pastore, A., Patrizii, L., Polukhina, N., Pozzato, M., Roda, M., Roganova, T., Rosa, G., Sahnoun, Z., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spurio, M., Starkov, N., Stipcevic, M., Surdo, A., Tenti, M., Togo, V., Ventura, M., Vladymyrov, M., and Zago, M.

Subjects
High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract

Neutrino physics is nowadays receiving more and more attention as a possible source of information for the long-standing problem of new physics beyond the Standard Model. The recent measurement of the third mixing angle theta13 in the standard mixing oscillation scenario encourages us to pursue the still missing results on leptonic CP violation and absolute neutrino masses. However, several puzzling measurements exist, which deserve an exhaustive evaluation. The NESSiE Collaboration has been setup to undertake a definitive experiment to clarify the muon disappearance measurements at small L/E, which will be able to put severe constraints to any model with more than the three-standard neutrinos, or even to robustly measure the presence of a new kind of neutrino oscillation for the first time. Within the context of the current CERN project, aimed to revitalize the neutrino field in Europe, we will illustrate the achievements that can be obtained by a double muon-spectrometer system, with emphasis on the search for sterile neutrinos., Comment: 13 pages, Proceedings of XV Workshop on Neutrino Telescopes, 11-15 March 2013, Venice, Italy

Published
2013

22. New results on $\nu_\mu \to \nu_\tau$ appearance with the OPERA experiment in the CNGS beam

Author

OPERA Collaboration, Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Asada, T., Autiero, D., Badertscher, A., Dhahbi, A. Ben, Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Brunetti, G., Buettner, B., Buontempo, S., Chaussard, L., Chernyavskiy, M., Chiarella, V., Chukanov, A., Consiglio, L., D'Ambrosio, N., Sanchez, P. Del Amo, De Lellis, G., De Serio, M., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Ebert, J., Ereditato, A., Favier, J., Ferber, T., Fini, R. A., Fukuda, T., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Grianti, F., Guler, A. M., Gustavino, C., Hagner, C., Hakamata, K., Hara, T., Hayakawa, T., Hierholzer, M., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Ishikawa, M., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kawahara, H., Kawada, J., Kim, J. H., Kim, S. H., Kimura, M., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Migliozzi, P., Mikado, S., Minotti, A., Miyanishi, M., Miyashita, E., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Schmidt-Parzefall, W., Shakiryanova, I., Schcedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strauss, T., Strolin, P., Suzuki, K., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tolun, P., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Yoshida, J., Yoshimoto, M., Zaitsev, Y., Zemskova, S., and Zghiche, A.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The OPERA neutrino experiment is designed to perform the first observation of neutrino oscillations in direct appearance mode in the $\nu_\mu \to \nu_\tau$ channel, via the detection of the $\tau$-leptons created in charged current $\nu_\tau$ interactions. The detector, located in the underground Gran Sasso Laboratory, consists of an emulsion/lead target with an average mass of about 1.2 kt, complemented by electronic detectors. It is exposed to the CERN Neutrinos to Gran Sasso beam, with a baseline of 730 km and a mean energy of 17 GeV. The observation of the first $\nu_\tau$ candidate event and the analysis of the 2008-2009 neutrino sample have been reported in previous publications. This work describes substantial improvements in the analysis and in the evaluation of the detection efficiencies and backgrounds using new simulation tools. The analysis is extended to a sub-sample of 2010 and 2011 data, resulting from an electronic detector-based pre-selection, in which an additional $\nu_\tau$ candidate has been observed. The significance of the two events in terms of a $\nu_\mu \to \nu_\tau$ oscillation signal is of 2.40 $\sigma$., Comment: 33 pages, 12 figures, 5 tables. Prepared for submission to JHEP

Published
2013

23. Measurement of the neutrino velocity with the OPERA detector in the CNGS beam using the 2012 dedicated data

Author

The OPERA Collaboration, Adam, T., Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Autiero, D., Badertscher, A., Dhahbi, A. Ben, Beretta, M., Bertolin, A., Bozza, C., Brugière, T., Brugnera, R., Brunet, F., Brunetti, G., Buettner, B., Buontempo, S., Carlus, B., Cavanna, F., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Esposito, L. S., Favier, J., Felici, G., Ferber, T., Fini, R. A., Fukuda, T., Garfagnini, A., Giacomelli, G., Girerd, C., Goellnitz, C., Goldberg, J., Golubkov, D., Gornushkin, Y., Grella, G., Grianti, F., Guerin, C., Guler, A. M., Gustavino, C., Hagner, C., Hamada, K., Hara, T., Hierholzer, M., Hollnagel, A., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kawada, J., Kim, J. H., Kim, S. H., Kimura, M., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Mancini-Terracciano, C., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Migliozzi, P., Mikado, S., Monacelli, P., Montesi, M. C., Morishima, K., Moser, U., Muciaccia, M. T., Nakamura, M., Nakano, T., Nakatsuka, Y., Naumov, D., Nikitina, V., Ogawa, S., Olchevsky, A., Ozaki, K., Palamara, O., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Schmidt-Parzefall, W., Schuler, J., Shakiryanova, I., Sheshukov, A., Shibuya, H., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Song, J. S., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strauss, T., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tolun, P., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Wurtz, J., Yoon, C. S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, A., and Zimmermann, R.

Subjects
High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

In spring 2012 CERN provided two weeks of a short bunch proton beam dedicated to the neutrino velocity measurement over a distance of 730 km. The OPERA neutrino experiment at the underground Gran Sasso Laboratory used an upgraded setup compared to the 2011 measurements, improving the measurement time accuracy. An independent timing system based on the Resistive Plate Chambers was exploited providing a time accuracy of $\sim$1 ns. Neutrino and anti-neutrino contributions were separated using the information provided by the OPERA magnetic spectrometers. The new analysis profited from the precision geodesy measurements of the neutrino baseline and of the CNGS/LNGS clock synchronization. The neutrino arrival time with respect to the one computed assuming the speed of light in vacuum is found to be $\delta t_\nu \equiv TOF_c - TOF_\nu= (0.6 \pm 0.4\ (stat.) \pm 3.0\ (syst.))$ ns and $\delta t_{\bar{\nu}} \equiv TOF_c - TOF_{\bar{\nu}} = (1.7 \pm 1.4\ (stat.) \pm 3.1\ (syst.))$ ns for $\nu_{\mu}$ and $\bar{\nu}_{\mu}$, respectively. This corresponds to a limit on the muon neutrino velocity with respect to the speed of light of $-1.8 \times 10^{-6} < (v_{\nu}-c)/c < 2.3 \times 10^{-6}$ at 90% C.L. This new measurement confirms with higher accuracy the revised OPERA result., Comment: 14 pages, 4 figures

Published
2012
Full Text
View/download PDF

24. Determination of a time-shift in the OPERA set-up using high energy horizontal muons in the LVD and OPERA detectors

Author

Agafonova, N. Yu., Antonioli, P., Ashikhmin, V. V., Bari, G., Bressan, E., Evans, L., Garbini, M., Giusti, P., Malguin, A. S., Persiani, R., Ryasny, V. G., Ryazhskaya, O. G., Sartorelli, G., Scapparone, E., Selvi, M., Shakirianova, I. R., Votano, L., Wenninger, H., Yakushev, V. F., Zichichi, A., Agafonova, N., Alexandrov, A., Bertolin, A., Brugnera, R., Buttner, B., Chiarella, V., Chukanov, A., D'Ambrosio, N., De Lellis, G., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Dusini, S., Ebert, J., Ereditato, A., Ferber, T., Fini, R. A., Garfagnini, A., Giacomelli, G., Göllnitz, C., Gornushkin, Y., Grianti, F., Gustavino, C., Hagner, C., Hierholzer, M., Hollnagel, A., Jakovcic, K., Jollet-Meregaglia, C., Klicek, B., Kose, U., Lenkeit, J., Ljubicic, A., Longhin, A., Malgin, A., Mandrioli, G., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Muciaccia, M. T., Naumov, D., Olshevsky, A., Paoloni, A., Pastore, A., Patrizii, L., Pozzato, M., Pupilli, F., Rosa, G., Rostovtseva, I., Russo, A., Ryazhskaya, O., Schembri, A., Shakirianova, I., Sheshukov, A., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Stipcevic, M., Tenti, M., Terranova, F., Tioukov, V., Wonsak, B., Yakushev, V., Zaitsev, Y., and Zemskova, S.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract

The purpose of this work is to report the measurement of a time-shift in the OPERA set-up in a totally independent way from Time Of Flight (TOF) measurements of CNGS neutrino events. The LVD and OPERA experiments are both installed in the same laboratory: LNGS. The relative position of the two detectors, separated by an average distance of ~ 160 m, allows the use of very high energy horizontal muons to cross-calibrate the timing systems of the two detectors, using a TOF technique which is totally independent from TOF of CNGS neutrino events. Indeed, the OPERA-LVD direction lies along the so-called "Teramo anomaly", a region in the Gran Sasso massif where LVD has established, many years ago, the existence of an anomaly in the mountain structure, which exhibits a low m. w. e. thickness for horizontal directions. The "abundant" high-energy horizontal muons (nearly 100 per year) going through LVD and OPERA exist because of this anomaly in the mountain orography. The total live time of the data in coincidence correspond to 1200 days from mid 2007 until March 2012. The time coincidence study of LVD and OPERA detectors is based on 306 cosmic horizontal muon events and shows the existence of a negative time shift in the OPERA set-up of the order of deltaT(AB) = - (73 \pm 9) ns when two calendar periods, A and B, are compared. This result shows a systematic effect in the OPERA timing system from August 2008 until December 2011. The size of the effect is comparable with the neutrino velocity excess recently measured by OPERA. It is probably interesting not to forget that with the MRPC technology developed by the ALICE Bologna group the TOF world record accuracy of 20 ps was reached. That technology can be implemented at LNGS for a high precision determination of TOF with the CNGS neutrino beams of an order of magnitude smaller than the value of the OPERA systematic effect.

Published
2012

25. Characterization of A Novel Avalanche Photodiode for Single Photon Detection in VIS-NIR Range

Author

Stipcevic, M., Skenderovic, H., and Gracin, D.

Subjects
Physics - Instrumentation and Detectors, Quantum Physics
Abstract

In this work we investigate operation in the Geiger mode of the new single photon avalanche photo diode (SPAD) SAP500 manufactured by Laser Components. This SPAD is sensitive in the range 400-1000nm and has a conventional reach-through structure which ensures good quantum efficiency at the long end of the spectrum. By use of passive and active quenching schemes we investigate detection efficiency, timing jitter, dark counts, afterpulsing, gain and other important parameters and compare them to the "standard" low noise SPAD C30902SH from Perkin Elmer. We conclude that SAP500 offers better combination of detection efficiency, low noise and timing precision.

Published
2010
Full Text
View/download PDF

26. ESSnuSB collaboration

Author

Alekou, A., Baussan, E., Blaskovic Kraljevic, N., Blennow, M., Bogomilov, M., Bouquerel, E., Burgman, A., Carlile, C. J., Cederkall, J., Christiansen, P., Collins, M., Cristaldo Morales, E., Alessi, L. D., Danared, H., André, J. P. A. M., Delahaye, J. P., Dracos, M., Efthymiopoulos, I., Ekelöf, T., Eshraqi, M., Fanourakis, G., Fernandez-Martinez, E., Folsom, B., Ghosh, M., Gokbulut, G., Halić, L., Kayis Topaksu, A., Kliček, B., Krhač, K., Lindroos, M., Mezzetto, M., Oglakci, M., Ohlsson, T., Olvegård, M., Ota, T., Park, J., Petkov, G., Poussot, P., Rosauro-Alcaraz, S., Stavropoulos, G., Stipčević, M., Terranova, F., Thomas, J., Tolba, T., Tsenov, R., Vankova-Kirilova, G., Vassilopoulos, N., Wildner, E., jacques wurtz, Zormpa, O., Zou, Y., HEP, INSPIRE, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ESSnuSB, and European Organization for Nuclear Research (CERN)

Subjects
Physics - Instrumentation and Detectors, far detector, QC770-798, hierarchy, Astrophysics, High Energy Physics - Experiment, Subatomär fysik, High Energy Physics - Experiment (hep-ex), neutrino, High Energy Physics - Phenomenology (hep-ph), Subatomic Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], neutrino: flux: calculated, Detectors and Experimental Techniques, physics.ins-det, ComputingMilieux_MISCELLANEOUS, Physics, hep-ph, Instrumentation and Detectors (physics.ins-det), essnusb, cp violation, QB460-466, High Energy Physics - Phenomenology, neutrino: detector, CP, violation, proposed experiment, numerical calculations: Monte Carlo, Particle Physics - Experiment, performance, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], neutrino: mass difference, FOS: Physical sciences, Nuclear and particle physics. Atomic energy. Radioactivity, ESSnuSB, CP: violation, conservation law, mixing, calculated, flavor: 3, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Particle Physics - Phenomenology, flavor, hep-ex, background, sensitivity, neutrino: mixing angle, flux, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], atmosphere, neutrino: oscillation, neutrino: mixing
Abstract

In this paper, we present the physics performance of the ESSnuSB experiment in the standard three flavor scenario using the updated neutrino flux calculated specifically for the ESSnuSB configuration and updated migration matrices for the far detector. Taking conservative systematic uncertainties corresponding to a normalization error of $5\%$ for signal and $10\%$ for background, we find that there is $10\sigma$ $(13\sigma)$ CP violation discovery sensitivity for the baseline option of 540 km (360 km) at $\delta_{\rm CP} = \pm 90^\circ$. The corresponding fraction of $\delta_{\rm CP}$ for which CP violation can be discovered at more than $5 \sigma$ is $70\%$. Regarding CP precision measurements, the $1\sigma$ error associated with $\delta_{\rm CP} = 0^\circ$ is around $5^\circ$ and with $\delta_{\rm CP} = -90^\circ$ is around $14^\circ$ $(7^\circ)$ for the baseline option of 540 km (360 km). For hierarchy sensitivity, one can have $3\sigma$ sensitivity for 540 km baseline except $\delta_{\rm CP} = \pm 90^\circ$ and $5\sigma$ sensitivity for 360 km baseline for all values of $\delta_{\rm CP}$. The octant of $\theta_{23}$ can be determined at $3 \sigma$ for the values of: $\theta_{23} > 51^\circ$ ($\theta_{23} < 42^\circ$ and $\theta_{23} > 49^\circ$) for baseline of 540 km (360 km). Regarding measurement precision of the atmospheric mixing parameters, the allowed values at $3 \sigma$ are: $40^\circ < \theta_{23} < 52^\circ$ ($42^\circ < \theta_{23} < 51.5^\circ$) and $2.485 \times 10^{-3}$ eV$^2 < \Delta m^2_{31} < 2.545 \times 10^{-3}$ eV$^2$ ($2.49 \times 10^{-3}$ eV$^2 < \Delta m^2_{31} < 2.54 \times 10^{-3}$ eV$^2$) for the baseline of 540 km (360 km)., Comment: 13 pages, 8 figures, 3 tables. Changes: Text updated, this is a published version

Published
2021

27. Particle Physics at the European Spallation Source

Author

Abele, H., Alekou, A., Algora, A., Andersen, K., Baeßler, S., Barron-Pálos, L., Barrow, J., Baussan, E., Bentley, P., Berezhiani, Z., Beßler, Y., Bhattacharyya, A. K., Bianchi, A., Bijnens, J., Blanco, C., Blaskovic Kraljevic, N., Blennow, M., Bodek, K., Bogomilov, M., Bohm, C., Bolling, B., Bouquerel, E., Brooijmans, G., Broussard, L. J., Buchan, O., Burgman, A., Calén, H., Carlile, C. J., Cederkall, J., Chanel, E., Christiansen, P., Cirigliano, V., Collar, J. I., Collins, M., Crawford, C. B., Cristaldo Morales, E., Cupiał, P., D Alessi, L., Damian, J. I. M., Danared, H., Dancila, D., André, J. P. A. M., Delahaye, J. P., Degenkolb, S., Di Julio, D. D., Dracos, M., Dunne, K., Efthymiopoulos, I., Ekelöf, T., Eklund, L., Eshraqi, M., Esteban, I., Fanourakis, G., Farricker, A., Fernandez-Martinez, E., Ferreira, M. J., Fertl, M., Fierlinger, P., Folsom, B., Frank, A., Fratangelo, A., Friman-Gayer, U., Fukuda, T., Fynbo, H. O. U., Sosa, A. Garcia, Gazis, N., Gålnander, B., Geralis, Th, Monojit Ghosh, Gokbulut, G., Gomez-Cadenas, J. J., Gonzalez-Alonso, M., Gonzalez, F., Halić, L., Happe, C., Heil, P., Heinz, A., Herde, H., Holl, M., Jenke, T., Jenssen, M., Jericha, E., Johansson, H. T., Johansson, R., Johansson, T., Kamyshkov, Y., Kayis Topaksu, A., Kildetoft, B., Kirch, K., Kliček, B., Klinkby, E., Kolevatov, R., Konrad, G., Kozioł, M., Krhač, K., Kupść, A., Łacny, Ł., Larizgoitia, L., Lewis, C. M., Lindroos, M., Lychagin, E., Lytken, E., Maiano, C., Marciniewski, P., Markaj, G., Märkisch, B., Marrelli, C., Martins, C., Meirose, B., Mezzetto, M., Milas, N., Milstead, D., Monrabal, F., Muhrer, G., Nepomuceno, A., Nesvizhevsky, V., Nilsson, T., Novella, P., Oglakci, M., Ohlsson, T., Olvegård, M., Oskarsson, A., Ota, T., Park, J., Patrzalek, D., Perrey, H., Persoz, M., Petkov, G., Piegsa, F. M., Pistillo, C., Poussot, P., Privitera, P., Rataj, B., Ries, D., Rizzi, N., Rosauro-Alcaraz, S., Rozpedzik, D., Saiang, D., Santoro, V., Schmidt, U., Schober, H., Schulthess, I., Silverstein, S., Simón, A., Sina, H., Snamina, J., Snow, W. M., Soldner, T., Stavropoulos, G., Stipčević, M., Szybiński, B., Takibayev, A., Tang, Z., Tarkeshian, R., Theroine, C., Thorne, J., Terranova, F., Thomas, J., Tolba, T., Torres-Sánchez, P., Trachanas, E., Tsenov, R., Uggerhøj, U. I., Vankova-Kirilova, G., Vassilopoulos, N., Wagner, R., Wang, X., Wildner, E., Wolke, M., Wurtz, J., Yiu, S. C., Yoon, S. G., Young, A. R., Zanini, L., Zejma, J., Zerzion, D., Zimmer, O., Zormpa, O., Zou, Y., and HEP, INSPIRE

Subjects
Physics - Instrumentation and Detectors, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], hep-ex, FOS: Physical sciences, hep-ph, Instrumentation and Detectors (physics.ins-det), nucl-ex, High Energy Physics - Experiment, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], fission, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), Detectors and Experimental Techniques, Nuclear Experiment, physics.ins-det, activity report, Particle Physics - Experiment, Particle Physics - Phenomenology
Abstract

Presently under construction in Lund, Sweden, the European Spallation Source (ESS) will be the world's brightest neutron source. As such, it has the potential for a particle physics program with a unique reach and which is complementary to that available at other facilities. This paper describes proposed particle physics activities for the ESS. These encompass the exploitation of both the neutrons and neutrinos produced at the ESS for high precision (sensitivity) measurements (searches)., Comment: 121 pages

28. Final results on neutrino oscillation parameters from the OPERA experiment in the CNGS beam

Author

Mitsuhiro Nakamura, R. Brugnera, Toshiyuki Nakano, Cristiano Bozza, M. Tenti, N. M. Okateva, Kimio Niwa, F. Pupilli, V. Gentile, Tomoko Ariga, M. De Serio, Antonio Ereditato, Kunihiro Morishima, G. De Lellis, N. Di Marco, I. Shakiryanova, Timur Dzhatdoev, A. Sotnikov, Masahiro Komatsu, Krešimir Jakovčić, Nicola D'Ambrosio, Caren Hagner, T. Naka, A. Hollnagel, L. Paparella, M. Spinetti, D. A. Podgrudkov, Gaston Wilquet, A. Di Crescenzo, A. Garfagnini, H. Shibuya, L. Consiglio, L. Pasqualini, F. Terranova, G. Sirri, E. Shibayama, P. Monacelli, B. Klicek, Akitaka Ariga, S. Simone, C. Gustavino, Artem Chukanov, T. Fukuda, N. I. Starkov, D. Duchesneau, Utku Kose, E. Voevodina, M. Chernyavskiy, T. M. Roganova, Alessandro Paoloni, F. Mizutani, L. Patrizii, Natalia Polukhina, C. Kamiscioglu, N. Agafonova, J. L. Vuilleumier, J. Goldberg, Osamu Sato, N. Mauri, Shigeki Aoki, Adele Lauria, S. Dmitrievsky, B. D. Park, G. Mandrioli, T. Shiraishi, A. Iuliano, O. G. Ryazhskaya, H. Pessard, Luca Stanco, V. Matveev, G. Grella, A. Longhin, Valeri Tioukov, Pierre Vilain, K. Kodama, E. Medinaceli, S. Dusini, G. Galati, J. Ebert, P. del Amo Sanchez, Hiroki Rokujo, A. Schembri, Y. A. Gornushkin, C. S. Yoon, Salvatore Buontempo, Simona Maria Stellacci, L. Votano, S. Vasina, Kazumi Ozaki, Maria Cristina Montesi, Chiara Sirignano, P. F. Loverre, A. S. Malgin, Satoru Takahashi, Gianfranca De Rosa, Naotaka Naganawa, T. Hayakawa, Anselmo Meregaglia, F. Laudisio, Seok Kim, M. Roda, M. Pozzato, S. Gorbunov, P. Strolin, M. Kamiscioglu, Marcos Dracos, A. M. Anokhina, T. V. Shchedrina, S. Ogawa, S. Tufanli, Cécile Jollet, A. Alexandrov, M. T. Muciaccia, A. M. Guler, I. Kreslo, Alessandro Pastore, Mario Stipčević, Katsumi Ishiguro, Motoaki Miyanishi, R. A. Fini, Nobuko Kitagawa, T. Matsuo, A. Bertolin, T. Hara, D. Di Ferdinando, S. Mikado, Agafonova, N., Alexandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bertolin, A., Bozza, C., Brugnera, R., Buontempo, S., Chernyavskiy, M., Chukanov, A., Consiglio, L., D’Ambrosio, N., De Lellis, G., De Serio, M., del Amo Sanchez, P., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Gentile, V., Goldberg, J., Gorbunov, S., Gornushkin, Y., Grella, G., Guler, A. M., Gustavino, C., Hagner, C., Hara, T., Hayakawa, T., Hollnagel, A., Ishiguro, K., Iuliano, A., Jakovčić, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kim, S. H., Kitagawa, N., Kliček, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laudisio, F., Lauria, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Miyanishi, M., Mizutani, F., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Niwa, K., Ogawa, S., Okateva, N., Ozaki, K., Paoloni, A., Paparella, L., Park, B. D., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Shibayama, E., Shibuya, H., Shiraishi, T., Simone, S., Sirignano, C., Sirri, G., Sotnikov, A., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipčević, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vasina, S., Vilain, P., Voevodina, E., Votano, L., Vuilleumier, J. L., Wilquet, G., Yoon, C. S., Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), OPERA, Agafonova, N, Alexandrov, A, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Bertolin, A, Bozza, C, Brugnera, R, Buontempo, S, Chernyavskiy, M, Chukanov, A, Consiglio, L, D'Ambrosio, N, De Lellis, G, De Serio, M, Del Amo Sanchez, P, Di Crescenzo, A, Di Ferdinando, D, Di Marco, N, Dmitrievsky, S, Dracos, M, Duchesneau, D, Dusini, S, Dzhatdoev, T, Ebert, J, Ereditato, A, Fini, R, Fukuda, T, Galati, G, Garfagnini, A, Gentile, V, Goldberg, J, Gorbunov, S, Gornushkin, Y, Grella, G, Guler, A, Gustavino, C, Hagner, C, Hara, T, Hayakawa, T, Hollnagel, A, Ishiguro, K, Iuliano, A, Jakovcic, K, Jollet, C, Kamiscioglu, C, Kamiscioglu, M, Kim, S, Kitagawa, N, Klicek, B, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laudisio, F, Lauria, A, Longhin, A, Loverre, P, Malgin, A, Mandrioli, G, Matsuo, T, Matveev, V, Mauri, N, Medinaceli, E, Meregaglia, A, Mikado, S, Miyanishi, M, Mizutani, F, Monacelli, P, Montesi, M, Morishima, K, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Niwa, K, Ogawa, S, Okateva, N, Ozaki, K, Paoloni, A, Paparella, L, Park, B, Pasqualini, L, Pastore, A, Patrizii, L, Pessard, H, Podgrudkov, D, Polukhina, N, Pozzato, M, Pupilli, F, Roda, M, Roganova, T, Rokujo, H, Rosa, G, Ryazhskaya, O, Sato, O, Schembri, A, Shakiryanova, I, Shchedrina, T, Shibayama, E, Shibuya, H, Shiraishi, T, Simone, S, Sirignano, C, Sirri, G, Sotnikov, A, Spinetti, M, Stanco, L, Starkov, N, Stellacci, S, Stipcevic, M, Strolin, P, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Tufanli, S, Vasina, S, Vilain, P, Voevodina, E, Votano, L, Vuilleumier, J, Wilquet, G, Yoon, C, Agafonova N., Alexandrov A., Anokhina A., Aoki S., Ariga A., Ariga T., Bertolin A., Bozza C., Brugnera R., Buontempo S., Chernyavskiy M., Chukanov A., Consiglio L., D'Ambrosio N., De Lellis G., De Serio M., Del Amo Sanchez P., Di Crescenzo A., Di Ferdinando D., Di Marco N., Dmitrievsky S., Dracos M., Duchesneau D., Dusini S., Dzhatdoev T., Ebert J., Ereditato A., Fini R.A., Fukuda T., Galati G., Garfagnini A., Gentile V., Goldberg J., Gorbunov S., Gornushkin Y., Grella G., Guler A.M., Gustavino C., Hagner C., Hara T., Hayakawa T., Hollnagel A., Ishiguro K., Iuliano A., Jakovcic K., Jollet C., Kamiscioglu C., Kamiscioglu M., Kim S.H., Kitagawa N., Klicek B., Kodama K., Komatsu M., Kose U., Kreslo I., Laudisio F., Lauria A., Longhin A., Loverre P., Malgin A., Mandrioli G., Matsuo T., Matveev V., Mauri N., Medinaceli E., Meregaglia A., Mikado S., Miyanishi M., Mizutani F., Monacelli P., Montesi M.C., Morishima K., Muciaccia M.T., Naganawa N., Naka T., Nakamura M., Nakano T., Niwa K., Ogawa S., Okateva N., Ozaki K., Paoloni A., Paparella L., Park B.D., Pasqualini L., Pastore A., Patrizii L., Pessard H., Podgrudkov D., Polukhina N., Pozzato M., Pupilli F., Roda M., Roganova T., Rokujo H., Rosa G., Ryazhskaya O., Sato O., Schembri A., Shakiryanova I., Shchedrina T., Shibayama E., Shibuya H., Shiraishi T., Simone S., Sirignano C., Sirri G., Sotnikov A., Spinetti M., Stanco L., Starkov N., Stellacci S.M., Stipcevic M., Strolin P., Takahashi S., Tenti M., Terranova F., Tioukov V., Tufanli S., Vasina S., Vilain P., Voevodina E., Votano L., Vuilleumier J.L., Wilquet G., Yoon C.S., Laboratoire d'Annecy de Physique des Particules (LAPP), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Sterile neutrino, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), neutrino oscillations, OPERA, CNGS, neutrino, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], S067P23, Muon neutrino, Detectors and Experimental Techniques, physics.ins-det, Charged current, neutrino: interaction, Physics, Instrumentation and Detectors (physics.ins-det), neutrino: sterile, antineutrino, BooNE, Neutrino, numerical calculations: Monte Carlo, Particle Physics - Experiment, oscillation: model, Particle physics, neutral current, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, neutrino: beam, MiniBooNE, weak interaction, S067DM1, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], neutrino oscillations, sterile neutrinos, tau leptons, neutrino detectors, 010306 general physics, Neutrino oscillation, Neutral current, 010308 nuclear & particles physics, hep-ex, High Energy Physics::Phenomenology, charged current: coupling, LSND, S067P13, three-flavor neutrino oscillation model, sterile neutrino, High Energy Physics::Experiment, neutrino: oscillation, neutrino: mixing, Electron neutrino, neutrino: mass: hierarchy
Abstract

The OPERA experiment has conclusively observed the appearance of tau neutrinos in the muon neutrino CNGS beam. Exploiting the OPERA detector capabilities, it was possible to isolate high purity samples of $\nu_{e}$, $\nu_{\mu}$ and $\nu_{\tau}$ charged current weak neutrino interactions, as well as neutral current weak interactions. In this Letter, the full dataset is used for the first time to test the three-flavor neutrino oscillation model and to derive constraints on the existence of a light sterile neutrino within the framework of the $3+1$ neutrino model. For the first time, tau and electron neutrino appearance channels are jointly used to test the sterile neutrino hypothesis. A significant fraction of the sterile neutrino parameter space allowed by LSND and MiniBooNE experiments is excluded at 90% C.L. In particular, the best-fit values obtained by MiniBooNE combining neutrino and antineutrino data are excluded at 3.3 $\sigma$ significance., Comment: 7 pages, 4 figures; Editors: Budimir Kli\v{c}ek and Matteo Tenti

Published
2019

29. Measurement of the cosmic ray muon flux seasonal variation with the OPERA detector

Author

G. De Lellis, S. Dmitrievsky, Kunihiro Morishima, B. D. Park, Chiara Sirignano, Caren Hagner, G. Galati, M. Miyanishi, S. Buontempo, F. Terranova, Nicola D'Ambrosio, N. Di Marco, A. M. Anokhina, Tatsuhiro Naka, Akitaka Ariga, A. S. Malgin, C. Gustavino, M. T. Muciaccia, Andrey Alexandrov, K. Niwa, Nobuko Kitagawa, Mitsuhiro Nakamura, R. Brugnera, P. Monacelli, N. Agafonova, M. Dracos, F. Laudisio, T. Hayakawa, Maria Cristina Montesi, Shigeki Aoki, Masahiro Komatsu, H. Rokujo, F. Fornari, M. Kamiscioglu, T. Shchedrina, T. Hara, D. A. Podgrudkov, S. Simone, Valeri Tioukov, J. L. Vuilleumier, Naotaka Naganawa, A. Buonaura, Pierre Vilain, G. Mandrioli, D. Di Ferdinando, Luca Stanco, A. Garfagnini, J. Goldberg, M. Chernyavskiy, B. Klicek, S. Mikado, M. Roda, Cécile Jollet, F. Pupilli, P. Strolin, Alessandro Paoloni, G. Grella, M. Tenti, J. Ebert, F. Mizutani, A. Sotnikov, Koichi Kodama, A. Hollnagel, T. M. Roganova, N. Mauri, C. Kamiscioglu, N. Okateva, H. Pessard, I. Shakiryanova, N. I. Starkov, Mario Stipčević, Lucia Votano, H. Shibuya, C. S. Yoon, A. Chukanov, Kazumi Ozaki, Natalia Polukhina, G. Rosa, M. Pozzato, L. Patrizii, Gaston Wilquet, D. Duchesneau, Seok Kim, Katsumi Ishiguro, M. De Serio, E. Voevodina, Tomoko Ariga, Timur Dzhatdoev, S. Vasina, Osamu Sato, Adele Lauria, A. Di Crescenzo, Krešimir Jakovčić, V. A. Matveev, Yuri Gornushkin, M. Spinetti, P. F. Loverre, L. Paparella, A. Iuliano, Simona Maria Stellacci, E. Shibayama, I. Kreslo, A. M. Guler, Utku Kose, P. del Amo Sanchez, O. Ryazhskaya, A. Pastore, T. Shiraishi, Satoru Takahashi, R. A. Fini, T. Fukuda, G. Sirri, Ante Ljubičić, A. Longhin, Anselmo Meregaglia, S. Ogawa, A. Schembri, T. Matsuo, Cristiano Bozza, V. Gentile, A. Ereditato, A. Bertolin, L. Pasqualini, E. Medinaceli, S. Dusini, L. Consiglio, S. Gorbunov, Toshiyuki Nakano, Agafonova N., Alexandrov A., Anokhina A., Aoki S., Ariga A., Ariga T., Bertolin A., Bozza C., Brugnera R., Buonaura A., Buontempo S., Chernyavskiy M., Chukanov A., Consiglio L., D'Ambrosio N., Lellis G.D., Serio M.D., Sanchez P.D.A., Crescenzo A.D., Ferdinando D.D., Marco N.D., Dmitrievsky S., Dracos M., Duchesneau D., Dusini S., Dzhatdoev T., Ebert J., Ereditato A., Fini R.A., Fornari F., Fukuda T., Galati G., Garfagnini A., Gentile V., Goldberg J., Gorbunov S., Gornushkin Y., Grella G., Guler A.M., Gustavino C., Hagner C., Hara T., Hayakawa T., Hollnagel A., Ishiguro K., Iuliano A., Jakovcic K., Jollet C., Kamiscioglu C., Kamiscioglu M., Kim S.H., Kitagawa N., Klicek B., Kodama K., Komatsu M., Kose U., Kreslo I., Laudisio F., Lauria A., Ljubicic A., Longhin A., Loverre P., Malgin A., Mandrioli G., Matsuo T., Matveev V., Mauri N., Medinaceli E., Meregaglia A., Mikado S., Miyanishi M., Mizutani F., Monacelli P., Montesi M.C., Morishima K., Muciaccia M.T., Naganawa N., Naka T., Nakamura M., Nakano T., Niwa K., Ogawa S., Okateva N., Ozaki K., Paoloni A., Paparella L., Park B.D., Pasqualini L., Pastore A., Patrizii L., Pessard H., Podgrudkov D., Polukhina N., Pozzato M., Pupilli F., Roda M., Roganova T., Rokujo H., Rosa G., Ryazhskaya O., Sato O., Schembri A., Shakiryanova I., Shchedrina T., Shibayama E., Shibuya H., Shiraishi T., Simone S., Sirignano C., Sirri G., Sotnikov A., Spinetti M., Stanco L., Starkov N., Stellacci S.M., Stipcevic M., Strolin P., Takahashi S., Tenti M., Terranova F., Tioukov V., Vasina S., Vilain P., Voevodina E., Votano L., Vuilleumier J.L., Wilquet G., Yoon C.S., Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), OPERA, Laboratoire d'Annecy de Physique des Particules (LAPP), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Agafonova, N., Alexandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Chernyavskiy, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., Lellis, G. De, Serio, M. De, Sanchez, P. del Amo, Crescenzo, A. Di, Ferdinando, D. Di, Marco, N. Di, Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R. A., Fornari, F., Fukuda, T., Galati, G., Garfagnini, A., Gentile, V., Goldberg, J., Gorbunov, S., Gornushkin, Y., Grella, G., Guler, A. M., Gustavino, C., Hagner, C., Hara, T., Hayakawa, T., Hollnagel, A., Ishiguro, K., Iuliano, A., Jakovčić, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kim, S. H., Kitagawa, N., Kliček, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laudisio, F., Lauria, A., Ljubičić, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Miyanishi, M., Mizutani, F., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Niwa, K., Ogawa, S., Okateva, N., Ozaki, K., Paoloni, A., Paparella, L., Park, B. D., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Shibayama, E., Shibuya, H., Shiraishi, T., Simone, S., Sirignano, C., Sirri, G., Sotnikov, A., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipčević, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Vasina, S., Vilain, P., Voevodina, E., Votano, L., Vuilleumier, J. L., Wilquet, G., Yoon, C. S., Agafonova, N, Alexandrov, A, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Bertolin, A, Bozza, C, Brugnera, R, Buonaura, A, Buontempo, S, Chernyavskiy, M, Chukanov, A, Consiglio, L, D'Ambrosio, N, Lellis, G, Serio, M, Sanchez, P, Crescenzo, A, Ferdinando, D, Marco, N, Dmitrievsky, S, Dracos, M, Duchesneau, D, Dusini, S, Dzhatdoev, T, Ebert, J, Ereditato, A, Fini, R, Fornari, F, Fukuda, T, Galati, G, Garfagnini, A, Gentile, V, Goldberg, J, Gorbunov, S, Gornushkin, Y, Grella, G, Guler, A, Gustavino, C, Hagner, C, Hara, T, Hayakawa, T, Hollnagel, A, Ishiguro, K, Iuliano, A, Jakovcic, K, Jollet, C, Kamiscioglu, C, Kamiscioglu, M, Kim, S, Kitagawa, N, Klicek, B, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laudisio, F, Lauria, A, Ljubicic, A, Longhin, A, Loverre, P, Malgin, A, Mandrioli, G, Matsuo, T, Matveev, V, Mauri, N, Medinaceli, E, Meregaglia, A, Mikado, S, Miyanishi, M, Mizutani, F, Monacelli, P, Montesi, M, Morishima, K, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Niwa, K, Ogawa, S, Okateva, N, Ozaki, K, Paoloni, A, Paparella, L, Park, B, Pasqualini, L, Pastore, A, Patrizii, L, Pessard, H, Podgrudkov, D, Polukhina, N, Pozzato, M, Pupilli, F, Roda, M, Roganova, T, Rokujo, H, Rosa, G, Ryazhskaya, O, Sato, O, Schembri, A, Shakiryanova, I, Shchedrina, T, Shibayama, E, Shibuya, H, Shiraishi, T, Simone, S, Sirignano, C, Sirri, G, Sotnikov, A, Spinetti, M, Stanco, L, Starkov, N, Stellacci, S, Stipcevic, M, Strolin, P, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Vasina, S, Vilain, P, Voevodina, E, Votano, L, Vuilleumier, J, Wilquet, G, and Yoon, C

Subjects
Physics - Instrumentation and Detectors, cosmic rays detectors, neutrino detectors, neutrino experiments, Physics::Instrumentation and Detectors, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Physics::Popular Physics, Observatory, Tau neutrino, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear emulsion, Muon neutrino, Detectors and Experimental Techniques, Nuclear Experiment, physics.ins-det, Physics, Detector, OPERA, Astrophysics::Instrumentation and Methods for Astrophysics, resistive plate chamber, Instrumentation and Detectors (physics.ins-det), observatory, modulation, nuclear emulsion, neutrino detector, neutrino/tau: particle identification, Particle Physics - Experiment, Particle physics, atmosphere: temperature, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Nuclear physics, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], cosmic rays detector, muon: flux, scintillation counter, Muon, hep-ex, 010308 nuclear & particles physics, Astronomy and Astrophysics, neutrino/mu: secondary beam, Gran Sasso, correlation, muon: cosmic radiation, High Energy Physics::Experiment, neutrino: oscillation, Lepton, experimental results
Abstract

The OPERA experiment discovered muon neutrino into tau neutrino oscillations in appearance mode, detecting tau leptons by means of nuclear emulsion films. The apparatus was also endowed with electronic detectors with tracking capability, such as scintillator strips and resistive plate chambers. Because of its location in the underground Gran Sasso laboratory, under 3800 m.w.e., the OPERA detector has also been used as an observatory for TeV muons produced by cosmic rays in the atmosphere. In this paper the measurement of the single muon flux modulation and its correlation with the seasonal cycle of atmospheric temperature is reported. The OPERA experiment discovered muon neutrino into tau neutrino oscillations in appearance mode, detecting tau leptons by means of nuclear emulsion films. The apparatus was also endowed with electronic detectors with tracking capability, such as scintillator strips and resistive plate chambers. Because of its location, in the underground Gran Sasso laboratory, under 3800 m.w.e., the OPERA detector has also been used as an observatory for TeV muons produced by cosmic rays in the atmosphere. In this paper the measurement of the single muon flux modulation and of its correlation with the seasonal variation of the atmospheric temperature are reported.

Published
2019

Catalog

Books, media, physical & digital resources
See catalog results