Results 51 to 60 of about 62,328 (197)
A neutrinoless double beta decay master formula from effective field theory
Journal of High Energy Physics, 2018 We present a master formula describing the neutrinoless-double-beta decay (0νββ) rate induced by lepton-number-violating (LNV) operators up to dimension nine in the Standard Model Effective Field Theory.
V. Cirigliano +4 more
doaj +1 more source
Chiral perturbation theory for nonzero chiral imbalance
Journal of High Energy Physics, 2020 We construct the most general low-energy effective lagrangian including local parity violating terms parametrized by an axial chemical potential or chiral imbalance μ 5, up to O p 4 $$ \mathcal{O}\left({p}^4\right) $$ order in the chiral expansion for ...
D. Espriu +2 more
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New Terms for the Compact Form of Electroweak Chiral Lagrangian
, 2007 The compact form of the electroweak chiral Lagrangian is a reformulation of its original form and is expressed in terms of chiral rotated electroweak gauge fields, which is crucial for relating the information of underlying theories to the coefficients ...
+33 more
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Chiral Lagrangians and quark condensate in nuclei [PDF]
Nuclear Physics A, 1996 24 pages, LaTex, 7 PostScript Figures, a couple of misprints corrected , 2 references added, a few modifications of the main text and conclusion, to be published in Nucl.
Delorme, J., Chanfray, G., Ericson, M.
openaire +2 more sources
The role of isospin filtering reactions in the S = −1 sector [PDF]
EPJ Web of Conferences, 2019 The present study reveals interesting constraining effects of isospin filtering reactions on the low energy constants present in meson-baryon chiral effective Lagrangian, particularly, on the next-to-leading order constants.
Feijoo A., Magas V.K., Ramos A.
doaj +1 more source
Chiral perturbation theory at O(a^2) for lattice QCD
, 2003 We construct the chiral effective Lagrangian for two lattice theories: one with Wilson fermions and the other with Wilson sea fermions and Ginsparg-Wilson valence fermions.
A. Morel +38 more
core +1 more source
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 +2 more
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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
Pion Breather States in QCD [PDF]
, 1998 We describe a class of pionic breather solutions (PBS) which appear in the chiral lagrangian description of low-energy QCD. These configurations are long-lived, with lifetimes greater than $10^3$ fm/c, and could arise as remnants of disoriented chiral ...
A. A. Anselm +21 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