52 citations · 93 across the 10 of their papers we have counts for
10 papers
Fine-tunings in radiative -particle capture on C at astrophysical energies
Ulf-G. Meißner, Bernard Ch. Metsch, Helen Meyer
We investigate the fine-tuning of radiative alpha-particle capture on carbon, , at astrophysical energies. Utilizing results from cluster effective f…
Nature of the states from compositeness criteria
Yu-Fei Wang, Chao-Wei Shen, Deborah Rönchen +3
Based on a coupled-channel approach, we investigate the structures of four states through compositeness criteria. Toward a more precise description of the states, we have obt…
Fine-tunings in nucleosynthesis and the emergence of life: Status and perspectives
Ulf-G. Meißner, Bernard Ch. Metsch, Helen Meyer
We discuss the fine-tunings of nuclear reactions in the Big Bang and in stars and draw some conclusions on the emergence of the light elements and the life-relevant elements carbon…
Bounds on variations of the strange quark mass from Big Bang nucleosynthesis
Ulf-G. Meißner, Bernard Metsch, Helen Meyer
We analyze the effect of a variation of the strange nucleon matrix element on the abundances of the light elements produced in the Big Bang. For…
meson from lattice QCD
Haobo Yan, Maxim Mai, Marco Garofalo +4
Many excited states in the hadron spectrum have large branching ratios to three-hadron final states. Understanding such particles from first principles QCD requires input from latt…
A study of the fine-structure constant dependence of radiative capture in Halo-EFT
Ulf-G. Meißner, Bernard Ch. Metsch, Helen Meyer
We study the fine-structure constant dependence of the rates of some selected radiative capture reactions within the framework of so-called Halo Effective Field Theory in order to…
Exploration of the LHCb states and possible resonances in a unitary coupled-channel model
Chao-Wei Shen, Deborah Rönchen, Ulf-G. Meißner +2
We extend our previous study of the interactions of within an analytic, unitary, coupled-channel approach by including the chann…
Global Data-Driven Determination of Baryon Transition Form Factors
Yu-Fei Wang, Michael Döring, Jackson Hergenrather +5
Hadronic resonances emerge from strong interactions encoding the dynamics of quarks and gluons. The structure of these resonances can be probed by virtual photons parameterized in…
Improved Constraints on the Variation of the Weak Scale from Big Bang Nucleosynthesis
Helen Meyer, Ulf-G. Meißner
We present an improved calculation of the light element abundances in the framework of Big Bang nucleosynthesis as a function of the Higgs vacuum expectation value . We compare…
The impact of photoproduction on the resonance spectrum
D. Rönchen, M. Döring, U. -G. Meißner
The Jülich-Bonn coupled-channel framework is extended to photoproduction. The spectrum of nucleon and resonances is extracted from simultaneous fits to several pion-indu…