by Betti, M.G., Biasotti, M., Boscá, A., Calle, F., Canci, N., Cavoto, G., Chang, C., Cocco, A.G., Colijn, A.P., Conrad, J., D’Ambrosio, N., Groot, N. De, de Salas, P.F., Faverzani, M., Ferella, A., Ferri, E., Garcia-Abia, P., García-Cortés, I., Gomez-Tejedor, G. Garcia, Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Gudmundsson, J.E., Hochberg, Y., Kahn, Y., Kievsky, A., Lisanti, M., Mancini-Terracciano, C., Mangano, G., Marcucci, L.E., Mariani, C., Martínez, J., Messina, M., Molinero-Vela, A., Monticone, E., Moroño, A., Nucciotti, A., Pandolfi, F., Parlati, S., Pastor, S., Pedrós, J., Heros, C. Pérez de los, Pisanti, O., Polosa, A.D., Puiu, A., Rago, I., Raitses, Y., Rajteri, M., Rossi, N., Rucandio, I., Santorelli, R., Schaeffner, K., Tully, C.G., Viviani, M., Zhao, F. and Zurek, K.M.
Abstract:
The PTOLEMY project aims to develop a scalable design for a Cosmic Neutrino Background (CNB) detector, the first of its kind and the only one conceived that can look directly at the image of the Universe encoded in neutrino background produced in the first second after the Big Bang. The scope of the work for the next three years is to complete the conceptual design of this detector and to validate with direct measurements that the non-neutrino backgrounds are below the expected cosmological signal. In this paper we discuss in details the theoretical aspects of the experiment and its physics goals. In particular, we mainly address three issues. First we discuss the sensitivity of PTOLEMY to the standard neutrino mass scale. We then study the perspectives of the experiment to detect the CNB via neutrino capture on tritium as a function of the neutrino mass scale and the energy resolution of the apparatus. Finally, we consider an extra sterile neutrino with mass in the eV range, coupled to the active states via oscillations, which has been advocated in view of neutrino oscillation anomalies. This extra state would contribute to the tritium decay spectrum, and its properties, mass and mixing angle, could be studied by analyzing the features in the beta decay electron spectrum.
Reference:
Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case (Betti, M.G., Biasotti, M., Boscá, A., Calle, F., Canci, N., Cavoto, G., Chang, C., Cocco, A.G., Colijn, A.P., Conrad, J., D’Ambrosio, N., Groot, N. De, de Salas, P.F., Faverzani, M., Ferella, A., Ferri, E., Garcia-Abia, P., García-Cortés, I., Gomez-Tejedor, G. Garcia, Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Gudmundsson, J.E., Hochberg, Y., Kahn, Y., Kievsky, A., Lisanti, M., Mancini-Terracciano, C., Mangano, G., Marcucci, L.E., Mariani, C., Martínez, J., Messina, M., Molinero-Vela, A., Monticone, E., Moroño, A., Nucciotti, A., Pandolfi, F., Parlati, S., Pastor, S., Pedrós, J., Heros, C. Pérez de los, Pisanti, O., Polosa, A.D., Puiu, A., Rago, I., Raitses, Y., Rajteri, M., Rossi, N., Rucandio, I., Santorelli, R., Schaeffner, K., Tully, C.G., Viviani, M., Zhao, F. and Zurek, K.M.), In Journal of Cosmology and Astroparticle Physics, volume 2019, 2019.
Bibtex Entry:
@article{Betti_2019,
abstract = {The PTOLEMY project aims to develop a scalable design for a Cosmic Neutrino Background (CNB) detector, the first of its kind and the only one conceived that can look directly at the image of the Universe encoded in neutrino background produced in the first second after the Big Bang. The scope of the work for the next three years is to complete the conceptual design of this detector and to validate with direct measurements that the non-neutrino backgrounds are below the expected cosmological signal. In this paper we discuss in details the theoretical aspects of the experiment and its physics goals. In particular, we mainly address three issues. First we discuss the sensitivity of PTOLEMY to the standard neutrino mass scale. We then study the perspectives of the experiment to detect the CNB via neutrino capture on tritium as a function of the neutrino mass scale and the energy resolution of the apparatus. Finally, we consider an extra sterile neutrino with mass in the eV range, coupled to the active states via oscillations, which has been advocated in view of neutrino oscillation anomalies. This extra state would contribute to the tritium decay spectrum, and its properties, mass and mixing angle, could be studied by analyzing the features in the beta decay electron spectrum.},
author = {Betti, M.G. and Biasotti, M. and Bosc{'a}, A. and Calle, F. and Canci, N. and Cavoto, G. and Chang, C. and Cocco, A.G. and Colijn, A.P. and Conrad, J. and D'Ambrosio, N. and Groot, N. De and de Salas, P.F. and Faverzani, M. and Ferella, A. and Ferri, E. and Garcia-Abia, P. and Garc{'i}a-Cort{'e}s, I. and Gomez-Tejedor, G. Garcia and Gariazzo, S. and Gatti, F. and Gentile, C. and Giachero, A. and Gudmundsson, J.E. and Hochberg, Y. and Kahn, Y. and Kievsky, A. and Lisanti, M. and Mancini-Terracciano, C. and Mangano, G. and Marcucci, L.E. and Mariani, C. and Mart{'i}nez, J. and Messina, M. and Molinero-Vela, A. and Monticone, E. and Moro{~n}o, A. and Nucciotti, A. and Pandolfi, F. and Parlati, S. and Pastor, S. and Pedr{'o}s, J. and Heros, C. P{'e}rez de los and Pisanti, O. and Polosa, A.D. and Puiu, A. and Rago, I. and Raitses, Y. and Rajteri, M. and Rossi, N. and Rucandio, I. and Santorelli, R. and Schaeffner, K. and Tully, C.G. and Viviani, M. and Zhao, F. and Zurek, K.M.},
date-added = {2025-01-24 17:15:00 +0100},
date-modified = {2025-01-24 17:15:00 +0100},
doi = {10.1088/1475-7516/2019/07/047},
journal = {Journal of Cosmology and Astroparticle Physics},
month = {jul},
number = {07},
pages = {047},
title = {Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case},
url = {https://dx.doi.org/10.1088/1475-7516/2019/07/047},
volume = {2019},
year = {2019},
bdsk-url-1 = {https://dx.doi.org/10.1088/1475-7516/2019/07/047}}