16 citations · 41 across the 9 of their papers we have counts for
9 papers
Isosinglet-isotriplet mixing and the lineshape
Davide Germani, Benjamin Grinstein
We investigate the lineshapes of the in decays production within a framework that incorporates two underlying QCD configurations: a compact isosinglet state a…
Positivity of the effective range for finite range attractive potentials with a repulsive core
Davide Germani
In the phenomenological study of exotic hadrons, the sign of the effective range, , is invoked as a criterion to distinguish between compact multiquark configurations (associa…
A New Look at the X Compositeness from its Lineshape
A. Carducci, G. Cianti, P. D'Annibali +2
Available data on the lineshape have been fitted with a Flattè parametrization derived from an effective Lagrangian in which , , and are all elementary fields…
The Compact X and Z and their Invisible Molecular Partners
A. Carducci, B. Grinstein, D. Germani +1
We propose a model explaining the strong isospin violations observed in X(3872) decays. The X is assumed to be a compact isosinglet tetraquark and its charged partners to form an i…
A short review on the compositeness of the
Angelo Esposito, Alfredo Glioti, Davide Germani +1
The could be a shallow bound state, a compact four-quark state, or a partially composite particle, i.e. a superposition of the two. We will review how these h…
Tetraquarks in the Born-Oppenheimer approximation
Davide Germani, Benjamin Grinstein, Antonio Davide Polosa
The conventional loosely bound molecule interpretation of the is not compatible with the recent LHCb experimental measurement of the ratio of branching fractions $\mathca…
On the Atomki nuclear anomaly after the MEG-II result
Daniele Barducci, Davide Germani, Marco Nardecchia +2
Recent experimental results from the Atomki collaboration have reported the observation of anomalous effects in Beryllium, Helium and Carbon nuclear transitions that could hint at…
A Simple Model of Pentaquarks
Davide Germani, Farhad Niliani, Antonio D. Polosa
We describe pentaquarks as baryo-charmonia with a color octet core bonded to a color octet three-quark system. Fermi statistics of the light quark cloud allows to descri…
The role of the pion in the lineshape of the
Angelo Esposito, Davide Germani, Alfredo Glioti +3
We determine the contribution of long-range pion interactions to the dynamics, assuming it is a loosely bound molecule. Our result is based on the dist…