Results 51 to 60 of about 651 (212)
Topological susceptibility and QCD axion mass: QED and NNLO corrections
Journal of High Energy Physics, 2019 We improve the precision of the topological susceptibility of QCD, and therefore of the QCD axion mass, by including O(α em) and NNLO corrections in the chiral expansion, which amount to 0.65(21)% and -0.71(29)% respectively.
Marco Gorghetto, Giovanni Villadoro
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Effective chiral Lagrangians and lattice QCD [PDF]
Nuclear Physics B, 2000 We propose a general method to obtain accurate estimates for some of the "low-energy constants" in the one-loop effective chiral Lagrangian by means of simulating lattice QCD. In particular, the method is sensitive to those constants whose values are required to test the hypothesis of a massless up-quark.
Heitger, Jochen +3 more
openaire +3 more sources
Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics
Advanced Science, Volume 13, Issue 30, 28 May 2026.We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai +15 more
wiley +1 more source
Electroweak chiral Lagrangians and the Higgs properties at the one-loop level [PDF]
, 2014 In these proceedings we explore the use of (non-linear) electroweak chiral Lagrangians for the description of possible beyond the Standard Model (BSM) strong dynamics in the electroweak (EW) sector.
Sanz-Cillero J.J., J.J. Sanz-Cillero
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Journal of High Energy Physics, 2017 Results for the antinucleon-nucleon N ¯ N $$ \left(\overline{N}\;N\right) $$ interaction obtained at next-to-next-to-next-to-leading order in chiral effective field theory (EFT) are reported.
Ling-Yun Dai +2 more
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Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley +1 more source
Reconfigurable Acoustofluidic Microvortices for Selective Microcargo Delivery
Advanced Science, Volume 13, Issue 16, 18 March 2026.This work introduces a frequency‐encoded, reconfigurable acoustofluidic system that overcomes the low throughput and poor selectivity of conventional micro‐delivery methods. By exploiting discrete microbubble resonances to program adaptive microvortex modes, the platform enables real‐time switching and selective guidance of microscale payloads through ...
Lei Wang +6 more
wiley +1 more source
DELTA-S=1 CHIRAL LAGRANGIANS REVISITED [PDF]
, 1987 The published version is located at http://prd.aps.org/abstract/PRD/v35/i9/p2764_1Previous work on the contributions of quartic chiral Lagrangians to kaon and hyperon nonleptonic decays is extended by considering an expanded set of such operators at tree
Golowich, E
core
Strange form factors and Chiral Perturbation Theory [PDF]
, 2005 We review the contributions of Chiral Perturbation Theory to the theoretical understanding or not-quite-yet-understanding of the nucleon matrix elements of the strange vector current.PACS: 12.39.Fe Chiral Lagrangians – 14.20.Dh Protons and ...
Bastian Kubis
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One-loop analysis of the interactions between doubly charmed baryons and Nambu-Goldstone bosons
Journal of High Energy Physics, 2023 The interactions between the spin-1/2 doubly charmed baryons and Nambu-Goldstone bosons are analyzed within a manifestly relativistic baryon chiral perturbation theory up to next-to-next-to leading order, by using the so-called extended-on-mass-shell ...
Ze-Rui Liang +2 more
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