Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case
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Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case

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Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case

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dc.contributor.author Betti, M. G.
dc.contributor.author Biasotti, M.
dc.contributor.author Bosca, A.
dc.contributor.author Calle, F.
dc.contributor.author Cavoto, G.
dc.contributor.author Chang, C.
dc.contributor.author Cocco, A. G.
dc.contributor.author Colijn, A. P.
dc.contributor.author Conrad, J.
dc.contributor.author D'Ambrosio, N.
dc.contributor.author Fernández de Salas, Pablo
dc.contributor.author Faverzani, M.
dc.contributor.author Ferella, A.
dc.contributor.author Ferri, E.
dc.contributor.author Garcia-Abia, P.
dc.contributor.author Garcia Gomez-Tejedor, G.
dc.contributor.author Gariazzo, Stefano
dc.contributor.author Gatti, F.
dc.contributor.author Gentile, C.
dc.contributor.author Giachero, A.
dc.contributor.author Gudmundsson, J. E.
dc.contributor.author Hochberg, Y.
dc.contributor.author Kahn, Y.
dc.contributor.author Kievsky, A.
dc.contributor.author Lisanti, M.
dc.contributor.author Mancini-Terracciano, C.
dc.contributor.author Mangano, Gianpiero
dc.contributor.author Marcucci, L. E.
dc.contributor.author Mariani, C.
dc.contributor.author Martinez, J.
dc.contributor.author Messina, M.
dc.contributor.author Molinero-Vela, A.
dc.contributor.author Monticone, E.
dc.contributor.author Nucciotti, A.
dc.contributor.author Pandolfi, F.
dc.contributor.author Pastor Carpi, Sergio
dc.contributor.author Pedrós, J.
dc.contributor.author Pérez de los Heros, C.
dc.contributor.author Pisanti, Ofelia
dc.date.accessioned 2020-06-29T09:42:58Z
dc.date.available 2020-06-29T09:42:58Z
dc.date.issued 2019
dc.identifier.uri https://hdl.handle.net/10550/75203
dc.description.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.
dc.language.iso eng
dc.relation.ispartof Journal Of Cosmology And Astroparticle Physics, 2019, vol. 07, p. 047-1-047-29
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Betti, M. G. Biasotti, M. Bosca, A. Calle, F. Cavoto, G. Chang, C. Cocco, A. G. Colijn, A. P. Conrad, J. D'Ambrosio, N. Fernández de Salas, Pablo Faverzani, M. Ferella, A. Ferri, E. Garcia-Abia, P. Garcia Gomez-Tejedor, G. Gariazzo, Stefano Gatti, F. Gentile, C. Giachero, A. Gudmundsson, J. E. Hochberg, Y. Kahn, Y. Kievsky, A. Lisanti, M. Mancini-Terracciano, C. Mangano, Gianpiero Marcucci, L. E. Mariani, C. Martinez, J. Messina, M. Molinero-Vela, A. Monticone, E. Nucciotti, A. Pandolfi, F. Pastor Carpi, Sergio Pedrós, J. Pérez de los Heros, C. Pisanti, Ofelia 2019 Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case Journal Of Cosmology And Astroparticle Physics 07 047-1 047-29
dc.subject Cosmologia
dc.subject Astrofísica
dc.title Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case
dc.type info:eu-repo/semantics/article
dc.date.updated 2020-06-29T09:42:59Z
dc.identifier.doi https://doi.org/10.1088/1475-7516/2019/07/047
dc.identifier.idgrec 139262

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