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de Gouvêa A, Sánchez GJ, Kelly KJ. Very light sterile neutrinos at NOvA and T2K. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.055025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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de Gouvêa A, Fox PJ, Kayser BJ, Kelly KJ. Characterizing heavy neutral fermions via their decays. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.105.015019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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de Gouvêa A, Machado PAN, Perez-Gonzalez YF, Tabrizi Z. Measuring the Weak Mixing Angle in the DUNE Near-Detector Complex. Phys Rev Lett 2020; 125:051803. [PMID: 32794872 DOI: 10.1103/physrevlett.125.051803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/03/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
The planned DUNE experiment will have excellent sensitivity to the vector and axial couplings of the electron to the Z boson via precision measurements of neutrino-electron scattering. We investigate the sensitivity of DUNE-PRISM, a movable near detector in the direction perpendicular to the beam line, and find that it will qualitatively impact our ability to constrain the weak couplings of the electron. We translate these neutrino-electron scattering measurements into a determination of the weak mixing angle at low scales and estimate that, with seven years of data taking, the DUNE near detector can be used to measure sin^{2}θ_{W} with about 2% precision. We also discuss the impact of combining neutrino-electron scattering data with neutrino trident production at DUNE-PRISM.
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Affiliation(s)
- André de Gouvêa
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - Pedro A N Machado
- Theoretical Physics Department, Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA
| | - Yuber F Perez-Gonzalez
- Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208, USA
- Theoretical Physics Department, Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA
- Colegio de Física Fundamental e Interdisciplinaria de las Américas (COFI), 254 Norzagaray street, San Juan 00901, Puerto Rico
| | - Zahra Tabrizi
- Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas (UNICAMP), Rua Sérgio Buarque de Holanda, 777, Campinas, SP 13083-859, Brazil
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de Gouvêa A, Sen M, Tangarife W, Zhang Y. Dodelson-Widrow Mechanism in the Presence of Self-Interacting Neutrinos. Phys Rev Lett 2020; 124:081802. [PMID: 32167361 DOI: 10.1103/physrevlett.124.081802] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
keV-scale gauge-singlet fermions, when allowed to mix with the active neutrinos, are elegant dark matter (DM) candidates. They are produced in the early Universe via the Dodelson-Widrow mechanism and can be detected as they decay very slowly, emitting x-rays. In the absence of new physics, this hypothesis is virtually ruled out by astrophysical observations. Here, we show that new interactions among the active neutrinos allow these sterile neutrinos to make up all the DM while safely evading all current experimental bounds. The existence of these new neutrino interactions may manifest itself in next-generation experiments, including DUNE.
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Affiliation(s)
- André de Gouvêa
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
| | - Manibrata Sen
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
- Department of Physics, University of California Berkeley, Berkeley, California 94720, USA
| | - Walter Tangarife
- Department of Physics, Loyola University Chicago, Chicago, Illinois 60660, USA
| | - Yue Zhang
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
- Ottawa-Carleton Institute for Physics, Department of Physics, Carleton University, Ottawa K1S 5B6, Canada
- Theoretical Physics Department, Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA
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Alekhin S, Altmannshofer W, Asaka T, Batell B, Bezrukov F, Bondarenko K, Boyarsky A, Choi KY, Corral C, Craig N, Curtin D, Davidson S, de Gouvêa A, Dell'Oro S, deNiverville P, Bhupal Dev PS, Dreiner H, Drewes M, Eijima S, Essig R, Fradette A, Garbrecht B, Gavela B, Giudice GF, Goodsell MD, Gorbunov D, Gori S, Grojean C, Guffanti A, Hambye T, Hansen SH, Helo JC, Hernandez P, Ibarra A, Ivashko A, Izaguirre E, Jaeckel J, Jeong YS, Kahlhoefer F, Kahn Y, Katz A, Kim CS, Kovalenko S, Krnjaic G, Lyubovitskij VE, Marcocci S, Mccullough M, McKeen D, Mitselmakher G, Moch SO, Mohapatra RN, Morrissey DE, Ovchynnikov M, Paschos E, Pilaftsis A, Pospelov M, Reno MH, Ringwald A, Ritz A, Roszkowski L, Rubakov V, Ruchayskiy O, Schienbein I, Schmeier D, Schmidt-Hoberg K, Schwaller P, Senjanovic G, Seto O, Shaposhnikov M, Shchutska L, Shelton J, Shrock R, Shuve B, Spannowsky M, Spray A, Staub F, Stolarski D, Strassler M, Tello V, Tramontano F, Tripathi A, Tulin S, Vissani F, Winkler MW, Zurek KM. A facility to search for hidden particles at the CERN SPS: the SHiP physics case. Rep Prog Phys 2016; 79:124201. [PMID: 27775925 DOI: 10.1088/0034-4885/79/12/124201] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP (search for hidden particles) experiment is intended to hunt for new physics in the largely unexplored domain of very weakly interacting particles with masses below the Fermi scale, inaccessible to the LHC experiments, and to study tau neutrino physics. The same proton beam setup can be used later to look for decays of tau-leptons with lepton flavour number non-conservation, [Formula: see text] and to search for weakly-interacting sub-GeV dark matter candidates. We discuss the evidence for physics beyond the standard model and describe interactions between new particles and four different portals-scalars, vectors, fermions or axion-like particles. We discuss motivations for different models, manifesting themselves via these interactions, and how they can be probed with the SHiP experiment and present several case studies. The prospects to search for relatively light SUSY and composite particles at SHiP are also discussed. We demonstrate that the SHiP experiment has a unique potential to discover new physics and can directly probe a number of solutions of beyond the standard model puzzles, such as neutrino masses, baryon asymmetry of the Universe, dark matter, and inflation.
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Affiliation(s)
- Sergey Alekhin
- Deutsches Elektronensynchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany. Institute for High Energy Physics, 142281 Protvino, Moscow region, Russia
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