10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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17 papers · 2 filters
Electric dipole moments of baryons with bottom quarks
Y. Ünal, D. Severt, J. de Vries +2
Triggered by experimental prospects to measure electromagnetic dipole moments of baryons containing a bottom quark, we calculate the CP-odd electric dipole moments (EDMs) of spin-1…
Differential Cross Section Predictions for PRad-II from Dispersion Theory
Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner
We predict the differential cross sections for and elastic scattering in the PRad-\Rom{2} energy region. The prediction is based on form factors obtained in our previ…
Update on strong and radiative decays of the and and their bottom cousins
Hai-Long Fu, Harald W. Grießhammer, Feng-Kun Guo +2
The isospin breaking and radiative decay widths of the positive-parity charm-strange mesons, and , and their predicted bottom-strange counterparts, $B^{*}_{s0}…
New insights into the nucleon's electromagnetic structure
Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner
We present a combined analysis of the electromagnetic form factors of the nucleon in the space- and timelike regions using dispersion theory. Our framework provides a consistent de…
An alternative scheme for effective range corrections in pionless EFT
M. Ebert, H. -W. Hammer, A. Rusetsky
We discuss an alternative scheme for including effective range corrections in pionless effective field theory. The standard approach treats range terms as perturbative insertions i…
Remarks on non-perturbative three--body dynamics and its application to the system
Xu Zhang, Christoph Hanhart, Ulf-G. Meißner +1
A formalism is discussed that allows for a straightforward treatment of the relativistic three-body problem while keeping the correct analytic structure. In particular it is demons…
Update on and from semileptonic kaon and pion decays
Chien-Yeah Seng, Daniel Galviz, William J. Marciano +1
We discuss the recent progress in the study of semileptonic kaon and pion decays, including new experimental results, improved electroweak radiative corrections, form factor calcul…
Dispersion-theoretical analysis of the electromagnetic form factors of the nucleon: Past, present and future
Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner
We review the dispersion-theoretical analysis of the electromagnetic form factors of the nucleon. We emphasize in particular the role of unitarity and analyticity in the constructi…
A bound on the nucleon Druck-term from chiral EFT in curved space-time and mechanical stability conditions
Jambul Gegelia, Maxim V. Polyakov
Using dispersive representations of the nucleon gravitational form factors, the results for their absorptive parts from chiral effective field theory in curved space-time, and the…
The axion-baryon coupling in SU(3) heavy baryon chiral perturbation theory
Thomas Vonk, Feng-Kun Guo, Ulf-G. Meißner
In the past, the axion-nucleon coupling has been calculated in the framework of SU(2) heavy baryon chiral perturbation theory up to third order in the chiral power counting. Here,…
Chiral dynamics and S-wave contributions in decays
Yu-Ji Shi, Ulf-G. Meißner
In this work, we analyze the semi-leptonic decays within light-cone sum rules. The two and three-body light-cone distributi…
High-precision determination of the electric and magnetic radius of the proton
Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner
Using dispersion theory with an improved description of the two-pion continuum based on the precise Roy-Steiner analysis of pion-nucleon scattering, we analyze recent data from ele…
Improved radiative corrections sharpen the -- discrepancy
Chien-Yeah Seng, Daniel Galviz, Mikhail Gorchtein +1
The measurements of in leptonic and semileptonic kaon decays exhibit a disagreement, which could originate either from physics beyond the Standa…
High-precision determination of the radiative corrections
Chien-Yeah Seng, Daniel Galviz, Mikhail Gorchtein +1
We report a high-precision calculation of the Standard Model electroweak radiative corrections in the decay as a part of the combined theory effort to understand th…
Gauge Fields as Constrained Composite Bosons
J. L. Chkareuli
We reconsider a scenario in which photons and other gauge fields appear as the composite vector bosons made of the fermion pairs that may happen with or without spontaneous violati…
Revisiting the nature of the pentaquarks
Meng-Lin Du, Vadim Baru, Feng-Kun Guo +4
The nature of the three narrow states, i.e., , and , is under intense discussion since their discovery from the updated analysis by LHCb. In…
The in resummed chiral effective field theory
X. -L. Ren, E. Epelbaum, J. Gegelia +1
We study the unitarized meson-baryon scattering amplitude at leading order in the strangeness sector using time-ordered perturbation theory for a manifestly Lorentz-invarian…