Roy-Steiner-equation analysis of pion-nucleon scattering

Abstract

We review the structure of Roy-Steiner equations for pion-nucleon scattering, the solution for the partial waves of the t-channel process $\pi \pi \to \bar{N}N$, as well as the high-accuracy extraction of the pion-nucleon S-wave scattering lengths from data on pionic hydrogen and deuterium. We then proceed to construct solutions for the lowest partial waves of the s-channel process $\pi N\to \pi N$ and demonstrate that accurate solutions can be found if the scattering lengths are imposed as constraints. Detailed error estimates of all input quantities in the solution procedure are performed and explicit parameterizations for the resulting low-energy phase shifts as well as results for subthreshold parameters and higher threshold parameters are presented. Furthermore, we discuss the extraction of the pion-nucleon $\sigma$-term via the Cheng-Dashen low-energy theorem, including the role of isospin-breaking corrections, to obtain a precision determination consistent with all constraints from analyticity, unitarity, crossing symmetry, and pionic-atom data. We perform the matching to chiral perturbation theory in the subthreshold region and detail the consequences for the chiral convergence of the threshold parameters and the nucleon mass.

arXiv comment101 pages, 28 figures; journal version

References in corpus (208)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Modern Theory of Nuclear Forces
• Chiral effective field theory and nuclear forces
• Chiral Dynamics in Nucleons and Nuclei
• micrOMEGAs3.1 : a program for calculating dark matter observables
• ππscattering
• Dark matter direct detection rate in a generic model with micrOMEGAs2.2
• Ab-initio Determination of Light Hadron Masses
• The two-nucleon system at next-to-next-to-next-to-leading order
• Electric Dipole Moments of Nucleons, Nuclei, and Atoms: The Standard Model and Beyond
• Mass and width of the lowest resonance in QCD
• 2+1 Flavor Lattice QCD toward the Physical Point
• Improved chiral nucleon-nucleon potential up to next-to-next-to-next-to-leading order
• Ab initio calculation of the neutron-proton mass difference
• Three-Body Interactions Among Nucleons and Pions
• The pion-pion scattering amplitude. IV: Improved analysis with once subtracted Roy-like equations up to 1100 MeV
• Extended Partial-Wave Analysis of piN Scattering Data
• Review of lattice results concerning low energy particle physics
• The chiral representation of the $\pi N$ scattering amplitude and the pion-nucleon sigma term
• Dispersion-Theoretical Analysis of the Nucleon Electromagnetic Formfactors
• Roy equation analysis of pi pi scattering
• Hadronic Uncertainties in the Elastic Scattering of Supersymmetric Dark Matter
• Precision nucleon-nucleon potential at fifth order in the chiral expansion
• Pion-nucleon scattering in chiral perturbation theory I: Isospin-symmetric case
• Chiral Perturbation Theory and Baryon Properties
• Quantifying truncation errors in effective field theory
• Aspects of chiral pion-nucleon physics
• Chiral expansion of baryon masses and $\sigma$-terms
• The Scalar Strange Content of the Nucleon from Lattice QCD
• The chiral effective pion-nucleon Lagrangian of order p^4
• Dispersion analysis of the nucleon form factors including meson continua
• Dispersion relation for hadronic light-by-light scattering: theoretical foundations
• A new analysis of $\pi K$ scattering from Roy and Steiner type equations
• Precise determination of the f0(600) and f0(980) pole parameters from a dispersive data analysis
• Updated analysis of $\pi$N elastic scattering data to 2.1~GeV: The Baryon Spectrum
• Octet baryon masses and sigma terms from an SU(3) chiral extrapolation
• Towards a data-driven analysis of hadronic light-by-light scattering
• Light hadron spectroscopy using domain wall valence quarks on an Asqtad sea
• Model independent extraction of the proton charge radius from electron scattering
• Physical Nucleon Properties from Lattice QCD
• Peripheral nucleon-nucleon scattering at fifth order of chiral perturbation theory
• Dispersive approach to hadronic light-by-light scattering
• Pion-nucleon scattering inside the Mandelstam triangle
• Baryon spectrum with $N_f=2+1+1$ twisted mass fermions
• The K^*_0(800) scalar resonance from Roy-Steiner representations of pi K scattering
• Implications for relic neutralinos of the theoretical uncertainties in the neutralino-nucleon cross-section
• Chiral three-nucleon force at N^4LO I: Longest-range contributions
• Dispersive analysis of the decay eta -> 3 pi
• Nucleon sigma term and strange quark content from lattice QCD with exact chiral symmetry
• Regge analysis of the pi pi scattering amplitude
• Pion--Nucleon Scattering in a New Approach to Chiral Perturbation Theory
• The size of the proton - closing in on the radius puzzle
• Precision calculation of threshold pi^- d scattering, pi N scattering lengths, and the GMO sum rule
• On the model discriminating power of mu -> e conversion in nuclei
• Pion-nucleon scattering in chiral perturbation theory II: Fourth order calculation
• Ground-state energy of pionic hydrogen to one loop
• Low energy analysis of pi N --> pi N
• The pi pi S-wave scattering lengths
• Precision calculation of the pi^- deuteron scattering length and its impact on threshold pi-N scattering
• Dispersive analysis of omega --> 3pi and phi --> 3pi decays
• Dispersive analysis of the pion transition form factor
• Universal behavior in the scattering of heavy, weakly interacting dark matter on nuclear targets
• Coulomb Effects in Low Energy Proton-Proton Scattering
• Final State Interactions and Khuri-Treiman Equations in $\eta \to 3\pi$ decays
• Cusps in K --> 3 pi decays
• The pion-pion scattering amplitude
• omega --> pi0 gamma* and phi --> pi0 gamma* Transition form factors in dispersion theory
• Virtual Photons in Low Energy pi-pi Scattering
• Roy-Steiner equations for gamma gamma -> pi pi
• WIMP-nucleus scattering in chiral effective theory
• Nucleon mass, sigma term and lattice QCD
• Improved description of the $\pi N$-scattering phenomenology in covariant baryon chiral perturbation theory
• High statistics measurement of Ke4 decay properties
• Chiral unitary approach to the K^- deuteron scattering length
• Determination of the chiral coupling constants c3 and c4 in new pp and np partial-wave analyses
• Revisiting γγ->π^+π^- at low energies
• In-medium chiral perturbation theory beyond the mean-field approximation
• Determination of the a0-a2 pion scattering length from K->pi+ pi0 pi0 decay
• Nucleon mass and sigma term from lattice QCD with two light fermion flavors
• MO analysis of the high statistics Belle results on $\gamma \gamma \to {\pi }^{+}{\pi }^{-},{\pi }^0{\pi }^0$ with chiral constraints
• Octet baryon masses in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
• The pion-pion scattering amplitude. III: Improving the analysis with forward dispersion relations and Roy equations
• A new Parameterization for the Pion Vector Form Factor
• The strange quark condensate in the nucleon in 2+1 flavor QCD
• First measurement of the ${\pi }^{+}{\pi }^{-}$ atom lifetime
• Determination of the pion-nucleon coupling constant and scattering lengths
• Photon- and pion-nucleon interactions in a unitary and causal effective field theory based on the chiral Lagrangian
• Strangeness and charmness content of nucleon from overlap fermions on 2+1-flavor domain-wall fermion configurations
• Pion-pion scattering and the K->3pi decay amplitudes
• Extracting the chiral anomaly from gamma pi --> pi pi
• Anomalous magnetic moment of the muon in a dispersive approach
• Size of the neutralino--nucleon cross--section in the light of a new determination of the pion--nucleon sigma term
• Analysis and interpretation of new low-energy Pi-Pi scattering data
• Chiral Corrections to the S-Wave Pion-Nucleon Scattering Lengths
• $\pi N\sigma$ Term , $\bar{s}s$ in Nucleon, and Scalar Form Factor --- a Lattice Study
• Couplings of light I=0 scalar mesons to simple operators in the complex plane
• Chiral extrapolations of baryon masses for unquenched three-flavor lattice simulations
• Unified dispersive approach to real and virtual photon-photon scattering at low energy
• The intrinsic strangeness and charm of the nucleon using improved staggered fermions
• Kaon-nucleon scattering lengths from kaonic deuterium experiments
• Nucleon mass: from lattice QCD to the chiral limit
• Dominant contributions to the nucleon-nucleon interaction at sixth order of chiral perturbation theory
• Hadronic atoms in QCD + QED
• Complete analysis of pion-nucleon scattering in chiral perturbation theory to third order
• Roy-Steiner equations for pion-nucleon scattering
• The nucleon mass and pion-nucleon sigma term from a chiral analysis of lattice QCD world data
• Strange quark contributions to nucleon mass and spin from lattice QCD
• The Electromagnetic Self-Energy Contribution to M_p - M_n and the Isovector Nucleon Magnetic Polarizability
• Compton scattering from the proton in an effective field theory with explicit Delta degrees of freedom
• Decays of the pi+ pi- atom
• Isospin violation in pion-nucleon scattering
• Chiral $\pi$-exchange NN-potentials: Results for diagrams proportional to g_A^4 and g_A^6
• Hyperon sigma terms for 2+1 quark flavours
• Electromagnetic corrections in hadronic processes
• The lowest-lying baryon masses in covariant SU(3)-flavor chiral perturbation theory
• Nucleon electroweak form factors: Analysis of their spectral functions
• The strange and light quark contributions to the nucleon mass from Lattice QCD
• Dispersive analysis of the scalar form factor of the nucleon
• Light Fermion Finite Mass Effects in Non-relativistic Bound States
• In-medium chiral condensate beyond linear density approximation
• Dispersive evaluation of the D-term form factor in deeply virtual Compton scattering
• Radiative corrections in K --> 3 pi decays
• Determination of the S-wave pi pi scattering lengths from a study of K+- -> pi+- pi0 pi0 decays
• Infrared regularization of baryon chiral perturbation theory reformulated
• $\pi K$ Scattering in Three Flavour ChPT
• Pion-Nucleon Sigma Term in Lattice QCD
• Baryon mass splittings and strong CP violation in SU(3) Chiral Perturbation Theory
• The Effective Chiral Lagrangian From the Theta Term
• pi(-)p atom in ChPT: strong energy-level shift
• Isospin breaking in Kl4 decays
• Scalar strangeness content of the nucleon and baryon sigma terms
• Low-energy photon-photon collisions to two loops revisited
• SU(2) and SU(3) chiral perturbation theory analyses on baryon masses in 2+1 flavor lattice QCD
• The S-Wave Pion-Nucleon Scattering Lengths from Pionic Atoms using Effective Field Theory
• Parity-Violating Electron Scattering and the Electric and Magnetic Strange Form Factors of the Nucleon
• Virtual photons in baryon chiral perturbation theory
• Precision calculation of $\gamma d\to {\pi }^{+}nn$ within chiral perturbation theory
• Beyond the CMSSM without an Accelerator: Proton Decay and Direct Dark Matter Detection
• Pionic deuterium
• The electric dipole moment of the deuteron from the QCD $\theta$-term
• Isospin violation in low-energy pion-nucleon scattering revisited
• Isospin breaking in the pion-nucleon scattering lengths
• Nucleon strange quark content from two-flavor lattice QCD with exact chiral symmetry
• Light stops, blind spots, and isospin violation in the MSSM
• Virtual photon-photon scattering
• Chiral 3$\pi$-exchange NN-potentials: Results for dominant next-to-leading order contributions
• Sigma terms and strangeness content of the nucleon with $N_f=2+1+1$ twisted mass fermions
• Cusps in K --> 3pi decays: a theoretical framework
• Chiral Prediction for the $\pi N$ Scattering Length $a^{-}$ to Order $\mathcal{O}(M_{\pi }^4)$
• In Search of the Chiral Regime
• Comparison of Pion-Kaon Scattering in SU(3) Chiral Perturbation Theory and Dispersion Relations
• The role of the nucleon recoil in low--energy meson--nucleus reactions
• Determination of $\pi \pi$ scattering lengths from measurement of ${\pi }^{+}{\pi }^{-}$ atom lifetime
• On the absence of fifth-order contributions to the nucleon mass in heavy-baryon chiral perturbation theory
• On the analysis of the pion--nucleon $\sigma$--term: The size of the remainder at the Cheng--Dashen point
• Hadronic shift in pionic hydrogen
• Strangeness in the baryon ground states
• Moments of $\varphi$ meson spectral functions in vacuum and nuclear matter
• Strong Isospin Breaking in the Nucleon and Delta Masses on the Lattice
• Towards an understanding of isospin violation in pion-nucleon scattering
• The isoscalar S-wave pi-N scattering length a+ from pi-deuteron scattering
• Isospin-breaking corrections in the pion-deuteron scattering length
• Extraction of the strong neutron-proton mass difference from the charge symmetry breaking in pn-->d pi0
• The pion-nucleon scattering lengths from pionic deuterium
• The Nucleon Sigma Term from Threshold Parameters
• On the size of isospin violation in low-energy pion-nucleon scattering
• Chiral expansion of the nucleon mass to order q^6
• QCD condensates and hadron parameters in nuclear matter: self-consistent treatment, sum rules and all that
• Infrared renormalization of two-loop integrals and the chiral expansion of the nucleon mass
• Induced pseudoscalar form factor of the nucleon at two-loop order in chiral perturbation theory
• Lattice QCD Calculations of the Sigma Commutator
• The role of nucleon recoil in low-energy antikaon-deuteron scattering
• Nuclear σ-terms and Scalar-Isoscalar WIMP-Nucleus Interactions from Lattice QCD
• Chiral condensate in neutron matter
• Novel evaluation of the two-pion contribution to the nucleon isovector form factors
• Infrared and extended on-mass-shell renormalization of two-loop diagrams
• Dispersive and absorptive corrections to the pion-deuteron scattering length
• $\pi K$ sum rules and the SU(3) chiral expansion
• Convergence of the chiral expansion for the nucleon mass
• The chiral quark condensate and pion decay constant in nuclear matter at next-to-leading order
• Field Redefinitions and Wave Function Renormalization to $O(p^4)$ in Heavy Baryon Chiral Perturbation Theory
• Chiral dynamics and peripheral transverse densities
• On wave function renormalization and related aspects in heavy fermion effective field theories
• The multiple-scattering series in pion-deuteron scattering and the nucleon-nucleon potential: perspectives from effective field theory
• Partial wave analysiss of pbar-p -> piminus-piplus, pizero-pizero, eta-eta and eta-etaprime
• Towards a high precision calculation for the pion-nucleus scattering lengths
• The anomalous process gamma pi -> pi pi to two loops
• Evaluation of the Pion-Nucleon Sigma Term from CHAOS Data
• Role of the Delta(1232) in pion-deuteron scattering at threshold within chiral effective field theory
• Can one extract the pi-neutron scattering length from pi-deuteron scattering?
• The Low Energy Expansion for Pion-Pion Scattering and Crossing Symmetry in Dispersion Relations
• Regularization for effective field theory with two heavy particles
• To which densities is spin-polarized neutron matter a weakly interacting Fermi gas?
• The Chiral Coupling Constants $\lb{1}$ and $\lb{2}$ from \pipi Phase Shifts
• The chiral condensate in neutron matter
• The role of the input in Roy's equations for pion-pion scattering
• Study of $\gamma \pi \to \pi \pi$ below 1 GeV using Integral Equation Approach
• One-channel Roy equations revisited
• Nuclear thermodynamics and the in-medium chiral condensate
• Backward pion-nucleon scattering
• Is the strong-interaction proton-proton scattering length renormalization scale dependent in effective field theory?
• Deuteron Matrix Elements in Chiral Effective Theory at Leading Order
• The Goldberger-Miyazawa-Oehme sum rule revisited
• Aspects of the ETH model of the pion-nucleon interaction
• Higher Threshold Parameters in pi pi Scattering
• Scattering Lengths and Medium and High Energy $\pi \pi$ Scattering
• Does the Multiple-scattering Series in the Pion-deuteron Scattering Actually Converge?
• Forward analysis of $\pi$N scattering with an expansion method

Cited by in corpus (169)

• Two-pion contribution to hadronic vacuum polarization
• Dispersion relation for hadronic light-by-light scattering: two-pion contributions
• High-quality two-nucleon potentials up to fifth order of the chiral expansion
• Semilocal momentum-space regularized chiral two-nucleon potentials up to fifth order
• Coherent elastic neutrino-nucleus scattering: EFT analysis and nuclear responses
• Rescattering effects in the hadronic-light-by-light contribution to the anomalous magnetic moment of the muon
• Three-Nucleon Forces: Implementation and Applications to Atomic Nuclei and Dense Matter
• The proton charge radius
• Reconciling threshold and subthreshold expansions for pion-nucleon scattering
• Simplified Models vs. Effective Field Theory Approaches in Dark Matter Searches
• Heavy Hadrons in Nuclear Matter
• Nucleon axial, tensor and scalar charges and $\sigma$-terms in lattice QCD
• Improved limits for Higgs-portal dark matter from LHC searches
• Analysis strategies for general spin-independent WIMP-nucleus scattering
• Delta isobars and nuclear saturation
• Pion-nucleon scattering in the Roper channel from lattice QCD
• Light nuclei with semilocal momentum-space regularized chiral interactions up to third order
• Exploring Bayesian parameter estimation for chiral effective field theory using nucleon-nucleon phase shifts
• Precision tests of fundamental physics with $\eta$ and ${\eta }^{\prime }$ mesons
• On the pi pi continuum in the nucleon form factors and the proton radius puzzle
• Direct determinations of the nucleon and pion $\sigma$ terms at nearly physical quark masses
• New insights into the nucleon's electromagnetic structure
• Pion-nucleon scattering in covariant baryon chiral perturbation theory with explicit Delta resonances
• Rigorous constraints on three-nucleon forces in chiral effective field theory from fast and accurate calculations of few-body observables
• Revisiting the proton mass decomposition
• Extracting the sigma-term from low-energy pion-nucleon scattering
• Nucleon axial structure from lattice QCD
• Kaon electromagnetic form factors in dispersion theory
• Pions in hot dense matter and their astrophysical implications
• Towards grounding nuclear physics in QCD
• FLAG Review 2024
• Iso-vector axial form factors of the nucleon in two-flavour lattice QCD
• Nuclear structure factors for general spin-independent WIMP-nucleus scattering
• Few- and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces
• Atomic nuclei from quantum Monte Carlo calculations with chiral EFT interactions
• Nucleon axial and pseudoscalar form factors from lattice QCD at the physical point
• Extraction of the neutron charge radius from a precision calculation of the deuteron structure radius
• Local nucleon-nucleon and three-nucleon interactions within chiral effective field theory
• Uncertainties in WIMP Dark Matter Scattering Revisited
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• Functional renormalization group studies of nuclear and neutron matter
• Remarks on the pion-nucleon sigma-term
• Light Baryon Spectroscopy
• The electromagnetic Sigma-to-Lambda hyperon transition form factors at low energies
• Nuclear Currents in Chiral Effective Field Theory
• High-accuracy calculation of the deuteron charge and quadrupole form factors in chiral effective field theory
• Dispersion relations for ${\gamma }^{\ast }{\gamma }^{\ast }\to \pi \pi$: helicity amplitudes, subtractions, and anomalous thresholds
• Pion-induced radiative corrections to neutron beta-decay
• High-precision determination of the electric and magnetic radius of the proton
• Dispersion-theoretical analysis of the electromagnetic form factors of the nucleon: Past, present and future
• The impact of ${\mathbf{K}}^{+}\mathbf{\Lambda }$ photoproduction on the resonance spectrum
• New Ideas in Constraining Nuclear Forces
• Hyperon-nucleon interaction in chiral effective field theory at next-to-next-to-leading order
• Novel approaches in Hadron Spectroscopy
• Elastic pion-nucleon scattering in chiral perturbation theory: A fresh look
• The pion-nucleon sigma term from lattice QCD
• Global parameterization of $\pi \pi$ scattering up to 2 GeV
• Nuclear Forces for Precision Nuclear Physics -- a collection of perspectives
• The proton radius: From a puzzle to precision
• Strange resonance poles from $K\pi$ scattering below 1.8 GeV
• Entanglement minimization in hadronic scattering with pions
• Parity- and time-reversal-violating nuclear forces
• Study of CP violation in hyperon decays at Super Charm-Tau Factories with a polarized electron beam
• Dispersive $\pi K\to \pi K$ and $\pi \pi \to K\bar{K}$ amplitudes from scattering data, threshold parameters and the lightest strange resonance $\kappa$ or $K_0^{\ast }(700)$
• Scale setting and the light baryon spectrum in $N_f=2+1$ QCD with Wilson fermions
• The deuteron-radius puzzle is alive: A new analysis of nuclear structure uncertainties
• Nucleon matrix elements of the antisymmetric quark tensor
• Perturbative $NN$ scattering in chiral effective field theory
• Three-nucleon force in chiral EFT with explicit $\Delta (1232)$ degrees of freedom: Longest-range contributions at fourth order
• The hadronic light-by-light contribution to the muon's anomalous magnetic moment
• The nucleon as a test case to calculate vector-isovector form factors at low energies
• Pion-nucleon sigma term revisited in covariant baryon chiral perturbation theory
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• Elastic nucleon-pion scattering at $m_{\pi }=200\mathrm{MeV}$ from lattice QCD
• Neutron stars and the dense matter equation of state: from microscopic theory to macroscopic observations
• The X17 boson and the ${}^3$H$(p,e^{+}{e}^{-}{)}^4$He and ${}^3$He$(n,e^{+}{e}^{-}{)}^4$He processes: a theoretical analysis
• Determination of the lightest strange resonance $K_0^{\ast }(700)$ or $\kappa$, from a dispersive data analysis
• On the role of isospin violation in the pion-nucleon $\sigma$-term
• Can chiral EFT give us satisfaction?
• Ab initio structure factors for spin-dependent dark matter direct detection
• Low energy scattering phase shifts for meson-baryon systems
• Nucleon resonance parameters from Roy-Steiner equations
• Light- and strange-quark mass dependence of the $\rho (770)$ meson revisited
• Momentum distributions and short-range correlations in the deuteron and ${}^3$He with modern chiral potentials
• Local position-space two-nucleon potentials from leading to fourth order of chiral effective field theory
• On the uncertainty estimates of the $\sigma$-pole determination by Padé approximants
• Nucleon Sigma Terms with $N_f=2+1$ O($a$)-improved Wilson fermions
• Systematizing and addressing theory uncertainties of unitarization with the Inverse Amplitude Method
• What can we learn about light-meson interactions at electron-positron colliders?
• $\theta$-dependence of light nuclei and nucleosynthesis
• Elastic and inelastic pion-nucleon scattering to fourth order in chiral perturbation theory
• Bayesian parameter estimation in $\chi$EFT using Hamiltonian Monte Carlo
• Bayesian optimization in ab initio nuclear physics
• Exploring the relationship between nuclear matter and finite nuclei with chiral two- and three-nucleon forces
• New insights into the nature of the $\Lambda (1380)$ and $\Lambda (1405)$ resonances away from the SU(3) limit
• Feynman-Hellmann theorem for resonances and the quest for QCD exotica
• New Insights on Low Energy $\pi N$ Scattering Amplitudes
• Improved limits on lepton-flavor-violating decays of light pseudoscalars via spin-dependent $\mu \to e$ conversion in nuclei
• Analysis of the neutron matter equation of state and the symmetry energy up to fourth order of chiral effective field theory
• The electromagnetic form factors of the transition from the spin-3/2 Sigma to the Lambda hyperon
• On the scalar $\pi K$ form factor beyond the elastic region
• Particle-dimer approach for the Roper resonance in a finite volume
• Nuclear Structure at the Crossroads
• The relevance of pion-exchange contributions versus contact terms in the chiral effective field theory description of nucleon-nucleon scattering
• The f0(1370) controversy from dispersive meson-meson scattering data analyses
• Optical Potentials Derived from Nucleon-Nucleon Chiral Potentials at N4LO
• Correlations of $\mathbf{\pi N}$ Partial Waves for Multi-Reaction Analyses
• Maximally local two-nucleon interactions at N${}^3$LO in $\Delta$-less chiral effective field theory
• Meson-baryon scattering up to the next-to-next-to-leading order in covariant baryon chiral perturbation theory
• Effective-field-theory predictions of the muon-deuteron capture rate
• Dispersive Determination of Nucleon Gravitational Form Factors
• Rescattering effects in nucleon-to-meson form factors and application to tau-lepton-induced proton decay
• Inference of the low-energy constants in $\Delta$-full chiral effective field theory including a correlated truncation error
• Theoretical tools for neutrino scattering: interplay between lattice QCD, EFTs, nuclear physics, phenomenology, and neutrino event generators
• Baryon masses and σ-terms in SU(3) BChPT x 1/Nc
• Spectral functions of nucleon form factors: Three-pion continua at low energies
• $B\to K+$invisible, dark matter, and $CP$ violation in hyperon decays
• Alpha-alpha scattering in the Multiverse
• Consistency between SU(3) and SU(2) chiral perturbation theory for the nucleon mass
• The reaction $\pi N\to \omega N$ in a dynamical coupled-channel approach
• Global parametrizations of $\pi \pi$ scattering with dispersive constraints: Beyond the S0 wave
• New Insights on Low Energy $\pi N$ Scattering Amplitudes: Comprehensive Analyses at $\mathcal{O}(p^3)$ Level
• A possible subthreshold pole in $S_{11}$ channel from $\pi N$ Roy-Steiner equation analyses
• Twist-four gravitational form factor at NNLO QCD from trace anomaly constraints
• Emulators for Scarce and Noisy Data: Application to Auxiliary-Field Diffusion Monte Carlo for Neutron Matter
• Coarse graining $\pi \pi$ scattering
• Pion axioproduction: The Delta resonance contribution
• $\sigma$ exchange in the one-boson exchange model involving the ground state octet baryons
• Two-pion exchange as a leading-order contribution in chiral effective field theory
• The radius of a typical-mass neutron star and chiral effective field theory
• Density-dependent NN-interaction from subsubleading chiral 3N-force: Intermediate-range contributions
• Light-quark mass dependence of the nucleon axial charge and pion-nucleon scattering phenomenology
• How does the $S_{11}$ $N^{\ast }(890)$ state emerge from a naive $K$ matrix fit?
• Finite volume corrections to forward Compton scattering off the nucleon
• Flavor decomposition of the pion-nucleon $\sigma$-term
• A particle's perspective on screening mechanisms
• Hybrid analysis of radiative corrections to neutron decay with current algebra and effective field theory
• Pion-nucleon scattering to order $p^4$ in SU(3) heavy baryon chiral perturbation theory
• Inferring three-nucleon couplings from multi-messenger neutron-star observations
• Elastic Nucleon-Pion scattering amplitudes in the $\Delta$ channel at physical pion mass from Lattice QCD
• Non-perturbative methods for NN singular interactions
• Revisiting Theoretical Analysis of Electric Dipole Moment of ${}^{129}$Xe
• Meson-baryon scattering in resummed baryon chiral perturbation theory using time-ordered perturbation theory
• Ab initio calculations of overlap integrals for $\mu \to e$ conversion in nuclei
• Nucleon-nucleon scattering up to next-to-next-to-leading order in manifestly Lorentz-invariant chiral effective field theory: peripheral phases
• One-loop analysis of the interactions between doubly charmed baryons and Nambu-Goldstone bosons
• A theory vade mecum for PSI experiments
• On Lowest Lying ${\frac{1}{2}}^{-}$ Octet Baryons
• Gravitational form factors of pions, kaons and nucleons from dispersion relations
• Dispersive analysis of low energy ${\gamma }^{\ast }N\to \pi N$ process
• Investigating the p-${\pi }^{\pm }$ and p-p-${\pi }^{\pm }$ dynamics with femtoscopy in pp collisions at $\sqrt{s}=13$ TeV
• Pairing properties of semilocal coordinate&momentum-space regularized chiral interactions
• CP violation in the hyperon decays $\Sigma \to N\pi$
• Is the $\bar{\theta }$ parameter of QCD constant?
• Differential Cross Section Predictions for PRad-II from Dispersion Theory
• Pion-nucleon scattering with decuplet contribution in heavy baryon SU(3) chiral perturbation theory
• Muon capture on the deuteron in chiral effective field theory
• Tests of CP symmetry in entangled hyperon anti-hyperon pairs at BESIII
• Unitarity and Unitarization
• Bayesian estimation of the low-energy constants up to fourth order in the nucleon-nucleon sector of chiral effective field theory
• Chiral perturbation theory
• Chiral corrections to the Adler-Weisberger sum rule
• Calculation of the axial-vector coupling constant $g_A$ to two loops in covariant chiral perturbation theory
• Constraining Hamiltonians from chiral effective field theory with neutron-star data
• Low-energy scattering of the $J/\psi \pi$ and $J/\psi K$ system
• Precision dispersive approaches versus unitarized Chiral Perturbation Theory for the lightest scalar resonances $\sigma /f_0(500)$ and $\kappa /K_0^{\ast }(700)$
• Exploring quark mass dependent three-nucleon forces in medium-mass nuclei
• Nucleon mass: trace anomaly and $\sigma$-terms
• An overview of symmetric nuclear matter properties from chiral interactions up to fourth order of the chiral expansion