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Start Over Author "Gariazzo, S" Publisher elsevier b.v.
4 results on '"Gariazzo, S"'

2. A design for an electromagnetic filter for precision energy measurements at the tritium endpoint

Author

Betti, M.G., Biasotti, M., Boscá, A., Calle, F., Carabe-Lopez, J., Cavoto, G., Chang, C., Chung, W., Cocco, A.G., Colijn, A.P., Conrad, J., D’Ambrosio, N., de Salas, P.F., Faverzani, M., Ferella, A., Ferri, E., Garcia-Abia, P., Gomez-Tejedor, G. Garcia, Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Gudmundsson, J.E., Hochberg, Y., Kahn, Y., Lisanti, M., Mancini-Terracciano, C., Mangano, G., Marcucci, L.E., Mariani, C., Martínez, J., Messina, M., Molinero-Vela, A., Monticone, E., Nucciotti, A., Pandolfi, F., Pastor, S., Pedrós, J., de los Heros, C. Pérez, Pisanti, O., Polosa, A.D., Puiu, A., Raitses, Y., Rajteri, M., Rossi, N., Santorelli, R., Schaeffner, K., Strid, C.F., Tully, C.G., Zhao, F., and Zurek, K.M.

Published
2019
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3. A design for an electromagnetic filter for precision energy measurements at the tritium endpoint

Author

Betti, M, Biasotti, M, Boscá, A, Calle, F, Carabe-Lopez, J, Cavoto, G, Chang, C, Chung, W, Cocco, A, Colijn, A, Conrad, J, D’Ambrosio, N, de Salas, P, Faverzani, M, Ferella, A, Ferri, E, Garcia-Abia, P, Gomez-Tejedor, G, Gariazzo, S, Gatti, F, Gentile, C, Giachero, A, Gudmundsson, J, Hochberg, Y, Kahn, Y, Lisanti, M, Mancini-Terracciano, C, Mangano, G, Marcucci, L, Mariani, C, Martínez, J, Messina, M, Molinero-Vela, A, Monticone, E, Nucciotti, A, Pandolfi, F, Pastor, S, Pedrós, J, de los Heros, C, Pisanti, O, Polosa, A, Puiu, A, Raitses, Y, Rajteri, M, Rossi, N, Santorelli, R, Schaeffner, K, Strid, C, Tully, C, Zhao, F, Zurek, K, Betti, M. G., Biasotti, M., Boscá, A., Calle, F., Carabe-Lopez, J., Cavoto, G., Chang, C., Chung, W., Cocco, A. G., Colijn, A. P., Conrad, J., D’Ambrosio, N., de Salas, P. F., Faverzani, M., Ferella, A., Ferri, E., Garcia-Abia, P., Gomez-Tejedor, G. Garcia, Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Gudmundsson, J. E., Hochberg, Y., Kahn, Y., Lisanti, M., Mancini-Terracciano, C., Mangano, G., Marcucci, L. E., Mariani, C., Martínez, J., Messina, M., Molinero-Vela, A., Monticone, E., Nucciotti, A., Pandolfi, F., Pastor, S., Pedrós, J., de los Heros, C. Pérez, Pisanti, O., Polosa, A. D., Puiu, A., Raitses, Y., Rajteri, M., Rossi, N., Santorelli, R., Schaeffner, K., Strid, C. F., Tully, C. G., Zhao, F., Zurek, K. M., Betti, M, Biasotti, M, Boscá, A, Calle, F, Carabe-Lopez, J, Cavoto, G, Chang, C, Chung, W, Cocco, A, Colijn, A, Conrad, J, D’Ambrosio, N, de Salas, P, Faverzani, M, Ferella, A, Ferri, E, Garcia-Abia, P, Gomez-Tejedor, G, Gariazzo, S, Gatti, F, Gentile, C, Giachero, A, Gudmundsson, J, Hochberg, Y, Kahn, Y, Lisanti, M, Mancini-Terracciano, C, Mangano, G, Marcucci, L, Mariani, C, Martínez, J, Messina, M, Molinero-Vela, A, Monticone, E, Nucciotti, A, Pandolfi, F, Pastor, S, Pedrós, J, de los Heros, C, Pisanti, O, Polosa, A, Puiu, A, Raitses, Y, Rajteri, M, Rossi, N, Santorelli, R, Schaeffner, K, Strid, C, Tully, C, Zhao, F, Zurek, K, Betti, M. G., Biasotti, M., Boscá, A., Calle, F., Carabe-Lopez, J., Cavoto, G., Chang, C., Chung, W., Cocco, A. G., Colijn, A. P., Conrad, J., D’Ambrosio, N., de Salas, P. F., Faverzani, M., Ferella, A., Ferri, E., Garcia-Abia, P., Gomez-Tejedor, G. Garcia, Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Gudmundsson, J. E., Hochberg, Y., Kahn, Y., Lisanti, M., Mancini-Terracciano, C., Mangano, G., Marcucci, L. E., Mariani, C., Martínez, J., Messina, M., Molinero-Vela, A., Monticone, E., Nucciotti, A., Pandolfi, F., Pastor, S., Pedrós, J., de los Heros, C. Pérez, Pisanti, O., Polosa, A. D., Puiu, A., Raitses, Y., Rajteri, M., Rossi, N., Santorelli, R., Schaeffner, K., Strid, C. F., Tully, C. G., Zhao, F., and Zurek, K. M.

Abstract

We present a detailed description of the electromagnetic filter for the PTOLEMY project to directly detect the Cosmic Neutrino Background (CNB). Starting with an initial estimate for the orbital magnetic moment, the higher-order drift process of E×B is configured to balance the gradient-B drift motion of the electron in such a way as to guide the trajectory into the standing voltage potential along the mid-plane of the filter. As a function of drift distance along the length of the filter, the filter zooms in with exponentially increasing precision on the transverse velocity component of the electron kinetic energy. This yields a linear dimension for the total filter length that is exceptionally compact compared to previous techniques for electromagnetic filtering. The parallel velocity component of the electron kinetic energy oscillates in an electrostatic harmonic trap as the electron drifts along the length of the filter. An analysis of the phase-space volume conservation validates the expected behavior of the filter from the adiabatic invariance of the orbital magnetic moment and energy conservation following Liouville's theorem for Hamiltonian systems.

Published
2019

4. Model-independent [formula omitted] short-baseline oscillations from reactor spectral ratios.

Author

Gariazzo, S., Giunti, C., Laveder, M., and Li, Y.F.

Subjects
*STANDARD model (Nuclear physics), *OSCILLATIONS, *SEPARATION (Technology), *MESSENGER (Space probe), *NEUTRINO astrophysics, *QUANTUM chromodynamics
Abstract

We consider the ratio of the spectra measured in the DANSS neutrino experiment at 12.7 and 10.7 m from a nuclear reactor. These data give a new model-independent indication in favor of short-baseline ν ¯ e oscillations which reinforce the model-independent indication found in the late 2016 in the NEOS experiment. The combined analysis of the NEOS and DANSS spectral ratios in the framework of 3+1 active–sterile neutrino mixing favor short-baseline ν ¯ e oscillations with a statistical significance of 3.7 σ . The two mixing parameters sin 2 ⁡ 2 ϑ e e and Δ m 41 2 are constrained at 2 σ in a narrow- Δ m 41 2 island at Δ m 41 2 ≃ 1.3 eV 2 , with sin 2 ⁡ 2 ϑ e e = 0.049 ± 0.023 (2 σ ). We discuss the implications of the model-independent NEOS+DANSS analysis for the reactor and Gallium anomalies. The NEOS+DANSS model-independent determination of short-baseline ν ¯ e oscillations allows us to analyze the reactor rates without assumptions on the values of the main reactor antineutrino fluxes and the data of the Gallium source experiments with free detector efficiencies. The corrections to the reactor neutrino fluxes and the Gallium detector efficiencies are obtained from the fit of the data. In particular, we confirm the indication in favor of the need for a recalculation of the U 235 reactor antineutrino flux found in previous studies assuming the absence of neutrino oscillations. [ABSTRACT FROM AUTHOR]

Published
2018
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