Determining the neutrino mass with Cyclotron Radiation Emission Spectroscopy - Project 8

JPhysG 44 (2017) 5 The most sensitive direct method to establish the absolute neutrino mass is observation of the endpoint of the tritium beta-decay spectrum. Cyclotron Radiation Emission Spectroscopy (CRES) is a precision spectrographic technique that can probe much of the unexplored neutrino mass...

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Main Authors:	Esfahani, Ali Ashtari, Asner, David M, Böser, Sebastian, Cervantes, Raphael, Claessens, Christine, de Viveiros, Luiz, Doe, Peter J, Doeleman, Shepard, Fernandes, Justin L, Fertl, Martin, Finn, Erin C, Formaggio, Joseph A, Furse, Daniel, Guigue, Mathieu, Heeger, Karsten M, Jones, A. Mark, Kazkaz, Kareem, Kofron, Jared A, Lamb, Callum, LaRoque, Benjamin H, Machado, Eric, McBride, Elizabeth L, Miller, Michael L, Monreal, Benjamin, Mohanmurthy, Prajwal, Nikkel, James A, Oblath, Noah S, Pettus, Walter C, Robertson, R. G. Hamish, Rosenberg, Leslie J, Rybka, Gray, Rysewyk, Devyn, Saldaña, Luis, Slocum, Penny L, Sternberg, Matthew G, Tedeschi, Jonathan R, Thümmler, Thomas, VanDevender, Brent A, Vertatschitsch, Laura E, Wachtendonk, Megan, Weintroub, Jonathan, Woods, Natasha L, Young, André, Zayas, Evan M
Format:	Journal Article
Language:	English
Published:	06-03-2017
Subjects:	Physics - High Energy Physics - Experiment Physics - Instrumentation and Detectors Physics - Nuclear Experiment
Online Access:	Get full text
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Summary:	JPhysG 44 (2017) 5 The most sensitive direct method to establish the absolute neutrino mass is observation of the endpoint of the tritium beta-decay spectrum. Cyclotron Radiation Emission Spectroscopy (CRES) is a precision spectrographic technique that can probe much of the unexplored neutrino mass range with $\mathcal{O}({\rm eV})$ resolution. A lower bound of $m(\nu_e) \gtrsim 9(0.1)\, {\rm meV}$ is set by observations of neutrino oscillations, while the KATRIN Experiment - the current-generation tritium beta-decay experiment that is based on Magnetic Adiabatic Collimation with an Electrostatic (MAC-E) filter - will achieve a sensitivity of $m(\nu_e) \lesssim 0.2\,{\rm eV}$. The CRES technique aims to avoid the difficulties in scaling up a MAC-E filter-based experiment to achieve a lower mass sensitivity. In this paper we review the current status of the CRES technique and describe Project 8, a phased absolute neutrino mass experiment that has the potential to reach sensitivities down to $m(\nu_e) \lesssim 40\,{\rm meV}$ using an atomic tritium source.
DOI:	10.48550/arxiv.1703.02037