An electroweak basis for neutrinoless double β decay

doi:10.1007/JHEP08(2017)099

Title: An electroweak basis for neutrinoless double β decay

Article Details
Other Related Research

Here, a discovery of neutrinoless double-β decay would be profound, providing the first direct experimental evidence of ΔL = 2 lepton number violating processes. While a natural explanation is provided by an effective Majorana neutrino mass, other new physics interpretations should be carefully evaluated. At low-energies such new physics could man-ifest itself in the form of color and SU(2) _L × U(1)Y invariant higher dimension operators. Here we determine a complete set of electroweak invariant dimension-9 operators, and our analysis supersedes those that only impose U(1) _em invariance. Imposing electroweak invariance implies: 1) a significantly reduced set of leading order operators compared to only imposing U(1) _em invariance; and 2) other collider signatures. Prior to imposing electroweak invariance we find a minimal basis of 24 dimension-9 operators, which is reduced to 11 electroweak invariant operators at leading order in the expansion in the Higgs vacuum expectation value. We set up a systematic analysis of the hadronic realization of the 4-quark operators using chiral perturbation theory, and apply it to determine which of these operators have long-distance pion enhancements at leading order in the chiral expansion. We also find at dimension-11 and dimension-13 the electroweak invariant operators that after electroweak symmetrymore »

Authors:

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: 2017-08-23

Report Number(s):: LA-UR-16-23550
Journal ID: ISSN 1029-8479

Grant/Contract Number:: AC52-06NA25396

Type:: Accepted Manuscript

Journal Name:: Journal of High Energy Physics (Online)

Additional Journal Information:: Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 8; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Research Org:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org:: USDOE Laboratory Directed Research and Development (LDRD) Program

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic and Nuclear Physics; Beyond Standard Model; Neutrino Physics; Chiral Lagrangians

OSTI Identifier:: 1398909


                    Graesser, Michael L. An electroweak basis for neutrinoless double β decay.  United States: N. p.,  
        Web.  doi:10.1007/JHEP08(2017)099.

Copy to clipboard


                    Graesser, Michael L. An electroweak basis for neutrinoless double β decay.  United States.  doi:10.1007/JHEP08(2017)099.

Copy to clipboard


                    Graesser, Michael L. 2017.  
        "An electroweak basis for neutrinoless double β decay".  United States.  
        doi:10.1007/JHEP08(2017)099.  https://www.osti.gov/servlets/purl/1398909.

Copy to clipboard


                    
@article{osti_1398909,

  title        = {An electroweak basis for neutrinoless double β decay},

  author       = {Graesser, Michael L.},

  abstractNote = {Here, a discovery of neutrinoless double-β decay would be profound, providing the first direct experimental evidence of ΔL = 2 lepton number violating processes. While a natural explanation is provided by an effective Majorana neutrino mass, other new physics interpretations should be carefully evaluated. At low-energies such new physics could man-ifest itself in the form of color and SU(2)L × U(1)Y invariant higher dimension operators. Here we determine a complete set of electroweak invariant dimension-9 operators, and our analysis supersedes those that only impose U(1)em invariance. Imposing electroweak invariance implies: 1) a significantly reduced set of leading order operators compared to only imposing U(1)em invariance; and 2) other collider signatures. Prior to imposing electroweak invariance we find a minimal basis of 24 dimension-9 operators, which is reduced to 11 electroweak invariant operators at leading order in the expansion in the Higgs vacuum expectation value. We set up a systematic analysis of the hadronic realization of the 4-quark operators using chiral perturbation theory, and apply it to determine which of these operators have long-distance pion enhancements at leading order in the chiral expansion. We also find at dimension-11 and dimension-13 the electroweak invariant operators that after electroweak symmetry breaking produce the remaining ΔL = 2 operators that would appear at dimension-9 if only U(1)em is imposed.},

  doi          = {10.1007/JHEP08(2017)099},

  journal      = {Journal of High Energy Physics (Online)},

  number       = 8,

  volume       = 2017,

  place        = {United States},

  year         = {2017},

  month        = {8}

}

Copy to clipboard

Free Publicly Accessible Full Text
Accepted Manuscript (DOE)
Publisher's Version of Record
10.1007/JHEP08(2017)099
https://doi.org/10.1007/JHEP08(2017)099

Citation Metrics
Cited by: 3works
Citation information provided by
Web of Science

Save / Share this Record
Export Metadata
- Endnote
- RIS
- Excel
- CSV
- XML
Save to My Library
Send to Email

Send to Email

Email address:

Content:

Similar Records

Similar records in DOE PAGES and OSTI.GOV collections:

First Results from CUORE: A Search for Lepton Number Violation via $0 ν β β$ Decay of ${}^{130}{Te}$ [First Results from CUORE: A Search for Lepton Number Violation via Neutrinoless Double Beta Decay of Te-130]

Journal Article Alduino, C. ; Alessandria, F. ; Alfonso, K. ; ... March 2018 - Physical Review Letters

The CUORE experiment, a ton-scale cryogenic bolometer array, recently began operation at the Laboratori Nazionali del Gran Sasso in Italy. The array represents a significant advancement in this technology, and in this work we apply it for the first time to a high-sensitivity search for a lepton-number-violating process: ¹³⁰Te neutrinoless double-beta decay. Examining a total TeO ₂ exposure of 86.3 kg yr, characterized by an effective energy resolution of (7.7 ± 0.5) keV FWHM and a background in the region of interest of (0.014 ± 0.002) counts /(keV kg yr), we find no evidence for neutrinoless double-beta decay. Including systematic uncertainties, we place a lower limit on the decay half-life of Tmore »« less
Cited by 10
Inelastic neutron scattering cross sections for ${}^{76}{Ge}$ relevant to background in neutrinoless double- $β$ decay experiments

Journal Article Crider, B. P. ; Peters, E. E. ; Allmond, J. M. ; ... September 2015 - Physical Review. C, Nuclear Physics

The experimental signature in searches for the neutrinoless double- decay of ⁷⁶Ge is a peak near 2039 keV in the spectrum. Given the low probability of the process, it is important that the background in this region be well understood. Moreover, inelastic scattering reactions with neutrons from muon-induced interactions and ( ,n) reactions in the surrounding materials or in the detector can provide contributions to the background. We also measured the production cross sections for rays from the ⁷⁶Ge(n,n ) reaction in the 2039-keV region at incident neutron energies up to 4.9 MeV. In addition to determining that the crossmore »« less
Cited by 2Full Text Available
Change of Nuclear Configurations in the Neutrinoless Double-β Decay of ¹³⁰Te → ¹³⁰Xe and ¹³⁶Xe → ¹³⁶Ba

Journal Article Entwisle, J. P. ; Kay, B. P. ; Tamii, A. ; ... June 2016 - Physical Review. C, Nuclear Physics

The change in the configuration of valence protons between the initial and final states in the neutrinoless double-beta decay of Te-130 -> Xe-130 and of Xe-136 -> Ba-136 has been determined by measuring the cross sections of the (d,He-3) reaction with 101-MeV deuterons. Together with our recent determination of the relevant neutron configurations involved in the process, a quantitative comparison with the latest shell-model and interacting-boson-model calculations reveals significant discrepancies. These are the same calculations used to determine the nuclear matrix elements governing the rate of neutrinoless double-beta decay in these systems.
Cited by 9Full Text Available
Rearrangement of valence neutrons in the neutrinoless double- $β$ decay of ${}^{136}{Xe}$

Journal Article Szwec, S. V. ; Kay, B. P. ; Cocolios, T. E. ; ... November 2016 - Physical Review C

Here, a quantitative description of the change in ground-state neutron occupancies between ¹³⁶Xe and ¹³⁶Ba, the initial and final state in the neutrinoless double-β decay of ¹³⁶Xe, has been extracted from precision measurements of the cross sections of single-neutron-adding and -removing reactions. Comparisons are made to recent theoretical calculations of the same properties using various nuclear-structure models. These are the same calculations used to determine the magnitude of the nuclear matrix elements for the process, which at present disagree with each other by factors of 2 or 3. The experimental neutron occupancies show some disagreement with the theoretical calculations.
Cited by 3Full Text Available
Cosmogenic-neutron activation of ${TeO}_{2}$ and implications for neutrinoless double- $β$ decay experiments

Journal Article Wang, B. S. ; Norman, E. B. ; Scielzo, N. D. ; ... August 2015 - Physical Review. C, Nuclear Physics

Flux-averaged cross sections for cosmogenic-neutron activation of natural tellurium were measured using a neutron beam containing neutrons of kinetic energies up to ~800 MeV, and having an energy spectrum similar to that of cosmic-ray neutrons at sea-level. Analysis of the radioisotopes produced reveals that ^110mAg will be a dominant contributor to the cosmogenic-activation background in experiments searching for neutrinoless double-beta decay of ¹³⁰Te, such as CUORE and SNO+. Here, an estimate of the cosmogenic-activation background in the CUORE experiment has been obtained using the results of this measurement and cross-section measurements of proton activation of tellurium. Additionally, the measured crossmore »« less
Cited by 8Full Text Available

Access journal articles and accepted manuscripts resulting from DOE research funding

Title: An electroweak basis for neutrinoless double β decay

Access journal articles and accepted manuscripts
resulting from DOE research funding