Speaker
Enrique Ruiz Arriola
(Universidad de Granada)
Description
All existing experimental evidence of the bound state nature of the X(3872) relies on considering its decay products with a finite experimental spectral mass resolution which is typically Δm≥2MeV and much larger than its alleged binding energy, BX=0.00(18)MeV. On the other hand, there is a neat cancellation in the 1++ channel for the invariant DD¯∗ mass around the threshold between the continuum and bound state contribution. We discuss the impact of this effect for X(3872)
at finite temperature, in prompt production in pp collisions data with a finite pT or the lineshapes of specific production experiments of exotic states involving triangle singularities
Authors
Enrique Ruiz Arriola
(Universidad de Granada)
Dr
Pablo Garcia Ortega
(University of Salamanca)
