scholarly journals Constraining sterile neutrinos with a low energy beta-beam

2010 ◽  
Vol 2010 (1) ◽  
Author(s):  
Sanjib K. Agarwalla ◽  
Patrick Huber ◽  
Jonathan M. Link
Keyword(s):  
Low Energy ◽  
Sterile Neutrinos ◽  
Beta Beam

scholarly journals Constraining sterile neutrinos with a low energy beta-beam

2010 ◽  
Author(s):  
Sanjib Kumar Agarwalla ◽  
Daniel Kaplan ◽  
Maury Goodman ◽  
Zack Sullivan
Keyword(s):  
Low Energy ◽  
Sterile Neutrinos ◽  
Beta Beam

scholarly journals Constraints on the charged currents in general neutrino interactions with sterile neutrinos

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Tong Li ◽  
Xiao-Dong Ma ◽  
Michael A. Schmidt
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Neutral Current ◽  
New Physics ◽  
Effective Field ◽  
Lepton Number ◽  
Low Energy ◽  
Electroweak Scale ◽  
Sterile Neutrinos ◽  
Neutrino Interactions

Abstract In this work we investigate the implication of low-energy precision measurements on the quark-lepton charged currents in general neutrino interactions with sterile neutrinos in effective field theories. The physics in low-energy measurements is described by the low-energy effective field theory extended with sterile neutrinos (LNEFT) defined below the electroweak scale. We also take into account renormalization group running and match the LNEFT onto the Standard Model (SM) effective field theory with sterile neutrinos (SMNEFT) to constrain new physics (NP) above the electroweak scale. The most sensitive low-energy probes are from leptonic decays of pseudoscalar mesons and hadronic tau lepton decays in terms of precise decay branching fractions, the lepton flavor universality and the Cabibbo-Kobayashi-Maskawa (CKM) unitarity. We also consider other constraints including nuclear beta decay. The constraints on charged current operators are generally stronger than the ones for quark-neutrino neutral current operators. We find that the most stringent bounds on the NP scale of lepton-number-conserving and lepton- number-violating operators in SMNEFT are 74 (110) TeV and 9.8 (13) TeV, respectively, for the operators with down (strange) quark.

scholarly journals Supernova physics with a low-energy beta-beam

2010 ◽  
Author(s):  
Gail C. Mclaughlin ◽  
Natalie Jachowicz
Keyword(s):  
Low Energy ◽  
Beta Beam

scholarly journals Low-energy probes of sterile neutrino transition magnetic moments

2021 ◽  
Vol 2021 (12) ◽  
Author(s):  
O. G. Miranda ◽  
D. K. Papoulias ◽  
O. Sanders ◽  
M. Tórtola ◽  
J. W. F. Valle
Keyword(s):  
Electron Scattering ◽  
Sterile Neutrino ◽  
Magnetic Moments ◽  
Low Energy ◽  
Parameter Region ◽  
Sterile Neutrinos ◽  
Electron Recoil ◽  
Nucleus Scattering

Abstract Sterile neutrinos with keV-MeV masses and non-zero transition magnetic moments can be probed through low-energy nuclear or electron recoil measurements. Here we determine the sensitivities of current and future searches, showing how they can probe a previously unexplored parameter region. Future coherent elastic neutrino-nucleus scattering (CEνNS) or elastic neutrino-electron scattering (EνES) experiments using a monochromatic 51Cr source can fully probe the region indicated by the recent XENON1T excess.

scholarly journals Operator bases in effective field theories with sterile neutrinos: d ≤ 9

2021 ◽  
Vol 2021 (11) ◽  
Author(s):  
Hao-Lin Li ◽  
Zhe Ren ◽  
Ming-Lei Xiao ◽  
Jiang-Hao Yu ◽  
Yu-Hui Zheng
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Effective Field ◽  
Lepton Number ◽  
Low Energy ◽  
Field Theories ◽  
Sterile Neutrinos ◽  
Two Generations ◽  
Mass Dimension ◽  
Physical Effects

Abstract We obtain the complete and independent bases of effective operators at mass dimension 5, 6, 7, 8, 9 in both standard model effective field theory with light sterile right-handed neutrinos (νSMEFT) and low energy effective field theory with light sterile neutrinos (νLEFT). These theories provide systematical parametrizations on all possible Lorentz-invariant physical effects involving in the Majorana/Dirac neutrinos, with/without the lepton number violations. In the νSMEFT, we find that there are 2 (18), 29 (1614), 80 (4206), 323 (20400), 1358 (243944) independent operators with sterile neutrinos included at the dimension 5, 6, 7, 8, 9 for one (three) generation of fermions, while 24, 5223, 3966, 25425, 789426 independent operators in the νLEFT for two generations of up-type quarks and three generations of all other fermions.

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