6 papers
Comprehensive Effective Field Theory Analysis for Baryon Number Violating Processes
Chuan-Qiang Song, Jiang-Hao Yu
Baryon number-violating processes arise generically in many extensions of the Standard Model, with Grand Unified Theories providing the most compelling realizations. Ongoing experi…
A Comprehensive Effective Field Theory Framework for Coherent Elastic Neutrino-Nucleus Scattering
Gang Li, Chuan-Qiang Song, Feng-Jie Tang +1
Coherent elastic neutrino-nucleus scattering (CENS) stands out as a pivotal process for precision tests of the Standard Model electroweak sector, investigations of neutrino prop…
Matching from quark to hadronic operators: external source vs spurion methods
Gang Li, Chuan-Qiang Song, Jiang-Hao Yu
Various weak processes at the hadronic scale have been utilized to search for new physics at high energy scale, which can be described by the QCD chiral Lagrangian matched from the…
Systematic Spurion Matching between Low Energy EFT and Chiral Lagrangian
Chuan-Qiang Song, Hao Sun, Jiang-Hao Yu
The hadronic chiral Lagrangian can be matched from the low energy effective field theory (LEFT) operators at the quark level. Traditionally, as the mass dimension of the LEFT opera…
Constraints on neutrino non-standard interactions from COHERENT, PandaX-4T and XENONnT
Gang Li, Chuan-Qiang Song, Feng-Jie Tang +1
We investigate constraints on neutrino non-standard interactions (NSIs) in the effective field theory framework, using data from the first measurement of solar B neutrinos via…
Complete CP-eigen Bases of Meson-Baryon Chiral Lagrangian up to -order
Chuan-Qiang Song, Hao Sun, Jiang-Hao Yu
Chiral perturbation theory describes the low energy dynamics of mesons and baryons in terms of the nonlinear Goldstone boson and fermion degrees of freedom. Through the Young tenso…