A neutrinoless double beta decay master formula from effective field theory
Journal Article
·
· Journal of High Energy Physics (Online)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); New Mexico Consortium, Los Alamos Research Park, Los Alamos, NM (United States)
- Nikhef, Amsterdam (The Netherlands)
We present a master formula describing the neutrinoless-double-beta decay (0νββ) rate induced by lepton-number-violating (LNV) operators up to dimension nine in the Standard Model Effective Field Theory. We provide an end-to-end framework connecting the possibly very high LNV scale to the nuclear scale, through a chain of effective field theories. Starting at the electroweak scale, we integrate out the heavy Standard Model degrees of freedom and we match to an SU(3)c Ⓧ U(1)em effective theory. After evolving the resulting effective Lagrangian to the QCD scale, we use chiral perturbation theory to derive the lepton-number-violating chiral Lagrangian. The chiral Lagrangian is used to derive the two-nucleon 0νββ transition operators to leading order in the chiral power counting. Based on renormalization arguments we show that in various cases short-range two-nucleon operators need to be enhanced to leading order. We show that all required nuclear matrix elements can be taken from existing calculations. Our final result is a master formula that describes the 0νββ rate in terms of phase-space factors, nuclear matrix elements, hadronic low-energy constants, QCD evolution factors, and high-energy LNV Wilson coefficients, including all the interference terms. Our master formula can be easily matched to any model where LNV originates at energy scales above the electroweak scale. As an explicit example, we match our formula to the minimal left-right-symmetric model in which contributions of operators of different dimension compete, and we discuss the resulting phenomenology.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- Laboratory Directed Research and Development (LDRD); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1492612
- Report Number(s):
- LA-UR--18-24895
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 12 Vol. 2018; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Neutrinoless double beta decay in chiral effective field theory: lepton number violation at dimension seven
Sterile neutrinos and neutrinoless double beta decay in effective field theory
Electric dipole moments in 5+3 flavor weak effective theory
Journal Article
·
Thu Dec 14 19:00:00 EST 2017
· Journal of High Energy Physics (Online)
·
OSTI ID:1416309
Sterile neutrinos and neutrinoless double beta decay in effective field theory
Journal Article
·
Mon Jun 15 20:00:00 EDT 2020
· Journal of High Energy Physics (Online)
·
OSTI ID:1648097
Electric dipole moments in 5+3 flavor weak effective theory
Journal Article
·
Thu Sep 05 20:00:00 EDT 2024
· Journal of High Energy Physics (Online)
·
OSTI ID:2472571