Results 41 to 50 of about 49,053 (225)
Roy–Steiner equations for pion–nucleon scattering and the pion–nucleon σ-term [PDF]
, 2020 We review the determination of the low-energy pion–nucleon scattering amplitude using Roy–Steiner equations. In particular, we focus on the phenomenological determination of the pion–nucleon σ-term, derived in combination with modern precision data on ...
Hoferichter, Martin +7 more
core +2 more sources
Pion-pion scattering in two dimensions [PDF]
Physical Review D, 1999 Massive two-flavor QED_2 is known to have many similarities to the two-flavor QCD_4. Here we compare the π-πscattering amplitudes (actually an analog process in QED_2) of the two theories. The QED_2 amplitude is computed from the bosonized version of the model while the QCD_4 amplitude is computed from an effective low energy chiral Lagrangian.
Schechter, Joseph +2 more
openaire +2 more sources
Generalized parton distributions of pion for non-zero skewness in AdS/QCD
Nuclear Physics B, 2018 We study the generalized parton distributions (GPDs) of pion for non-zero skewness by considering the leading |qq¯〉 Fock state component. Inspired from AdS/QCD light-front wave functions, we calculate the pion GPDs.
Navdeep Kaur +3 more
doaj +1 more source
Reviews of Modern Physics, 1961 Pion-pion interactions in pi -N processes are discussed, using a pi / sup +/ and pi /sup -/ beam at 1.03 Bev/c. (L.T.W.)
Anderson, Jerry A. +4 more
openaire +2 more sources
The investigation of K+π−, π+K− and π+π− atoms
EPJ Web of Conferences, 2016 Theory, using Low Energy QCD, predicts with high precision the pion-pion and pion-kaon scattering lengths. There is accurate relation between K+π− and π+K− atoms lifetime and pion-kaon S-wave scattering lengths with isospin 1/2 and 3/2.
Yazkov Valeriy
doaj +1 more source
Pion wave-function as a bound system in 3 + 1 dimensional QCD
Results in Physics, 2017 We investigate the Bethe-Salpeter-like amplitude in 3 + 1 dimensions. This involves a system comprising a quark and an antiquark combined by gauge fields to satisfy gauge invariance. We derive the equation of motion for this system and construct a series
Teruo Kurai
doaj +1 more source
Archaeometry, EarlyView.ABSTRACT The specific depth‐profiling capabilities of the muonic x‐ray emission spectroscopy (μ‐XES) technique have proved to be effective for examination of the elemental distribution within ancient coins. This ‘layered’ analysis can also be applied to the examination of ancient faience, the production of which can result in distinct layers (glaze ...
Juliet V. Spedding +2 more
wiley +1 more source
How to Match Cognitive Model Predictions With EEG Data
Topics in Cognitive Science, EarlyView.Abstract Reliably identifying relevant brain areas implicated by the simulated activity from cognitive models is still an unsolved problem for cognitive modeling, particularly when matching model output with human electroencephalography (EEG) data. We propose a new method involving postprocessing of ACT‐R module activity and clustered EEG component ...
Kai Preuss +3 more
wiley +1 more source
Static and dynamic properties of the pion from continuum modelling of strong QCD [PDF]
, 2010 We present nonperturbative numerical solutions for the quark propagator Schwinger-Dyson equation (SDE) and pseudoscalar meson Bethe-Salpeter equation (BSE) at and beyond the rainbow-ladder truncation level of this system of equations.
Cobos-Martinez, Jesus Javier +1 more
core
The Journal of Physiology, EarlyView.Abstract figure legend The study investigated the modulatory effects of affective touch on temporal summation of second pain (TSSP) in 32 romantic couples (N = 64). The design included a dyadic session (partner's CT‐optimal stroking vs. static touch) and an individual session (robotic CT‐touch vs. vibration control).
Márcia da‐Silva +5 more
wiley +1 more source