REVIEW 5 cited by
Proton decay matrix elements on the lattice at physical pion mass
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
abstract
Proton decay is a major prediction of Grand-Unified Theories (GUT) and its observation would indicate baryon number violation that is required for baryogenesis. Many decades of searching for proton decay have constrained its rate and ruled out some of the simplest GUT models. Apart from the baryon number-violating interactions, this rate also depends on transition amplitudes between the proton and mesons or leptons produced in the decay, which are matrix elements of three-quark operators. We report nonperturbative calculation of these matrix elements for the most studied two-body decay channels into a meson and antilepton done on a lattice with physical light and strange quark masses and lattice spacings $a\approx0.14$ and 0.20 fm. We perform nonperturbative renormalization and excited state analysis to control associated systematic effects. Our results largely agree with previous lattice calculations done with heavier quark masses and thus remove ambiguity in ruling out some simple GUT theories due to quark mass dependence of hadron structure.
Forward citations
Cited by 5 Pith papers
-
Chiral perturbation theory for baryon-number-violating nucleon decay into a vector meson
The authors derive the leading-order chiral Lagrangian for BNV nucleon decays into octet vector mesons and use it to relate vector-meson and pseudoscalar decay constraints.
-
Toward an advanced phenomenology of $\pi N$ transition distribution amplitudes
A flexible two-component model of pion-nucleon transition distribution amplitudes is fitted to CLAS data and used to predict cross-sections and three leading-twist spin asymmetries for backward pion electroproduction.
-
Baryon-number-violating nucleon decays into a dark photon particle
A complete XLEFT basis for nucleon decay into a dark photon is matched to ChPT, yielding width formulas and first recast lifetime bounds from Super-K data.
-
Topological multicomponent superconductivity with sizable $s$-wave admixture in twisted bilayer cuprates
Twisted bilayer cuprates stabilize a topological multicomponent superconducting state with order parameter s + d1 e^{i phi1} + d2 e^{i phi2} that remains chiral despite s-wave pairing.
-
Nucleon Decays into Light New Particles in Neutrino Detectors
Nucleon decays into light new particles can hide from water-Cherenkov detectors when the charged partner is slow, while Earth-born fluxes of the decay products could be visible in existing underground detectors.
Discussion (0). Continue with ORCID to comment.