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The new LHCb beauty-strange state as the bottom partner of the : a LQCD constrained coupled-channel chiral analysis
Miguel Albaladejo, Pablo Encarnación, Albert Feijoo +1
The LHCb Collaboration has observed a narrow state in the spectrum, about 74 MeV below the threshold, which is the natural candidate for the bottom partne…
The and femtoscopy puzzle
Pablo Encarnación, Miguel Albaladejo, Albert Feijoo +1
We present a relativistic momentum-space framework for femtoscopic correlation functions including strong and Coulomb interactions in coupled channels. The approach extends the Vin…
Bound State and Correlation Function
M. Bayar, P. Encarnación, A. Feijoo +1
We study the system using a new formulation of the fixed-center approximation that preserves elastic unitarity. The resulting scattering amplitude predicts a bound sta…
Coulomb Effects in Momentum-Space Femtoscopy: A Case Study of the System
Pablo Encarnación, Amador García-Lorenzo, Miguel Albaladejo +3
We present a momentum-space framework for the consistent treatment of Coulomb interactions in femtoscopic correlation functions based on a modified Vincent--Phatak method that is m…
Signatures of the state in Correlation Functions
Jia-Xin Lin, Pablo Encarnación, Albert Feijoo +1
We investigate the resonance in the strangeness sector within a coupled-channel chiral unitary approach and present the first quantitative predictions for femtosco…
Scattering observables and correlation function for revisited
Pablo Encarnación, Albert Feijoo, Eulogio Oset
In view of the recent theoretical developments in the fixed center approximation for the scattering of a particle with a a two-body cluster, implementing elastic unitarity on the s…