12 papers · 1 filter
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…
Predicted Exotic Doubly Heavy-Strange Pentaquarks
Albert Feijoo, Eulogio Oset
We predict exotic doubly heavy--strange pentaquarks with minimal quark content () within a coupled-channel unitary framework where the interaction is d…
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…
The as a partner of the
Yi-Yao Li, Albert Feijoo, Eulogio Oset
We present a study of the resonance and show that it is consistent with a dynamically generated state arising from the , , and interactions. In thi…
Signatures of Odd-Parity -wave States in Femtoscopic Correlation Functions
Jia-Xin Lin, Pablo Encarnación, Miguel Albaladejo +1
We investigate the resonances within the molecular picture, where these states are dynamically generated as poles in the unitarized scattering amplitudes arising from the cou…
Spectroscopic and femtoscopic insights into vector-baryon interactions in the strangeness sector
P. Encarnación, M. Albaladejo, A. Feijoo +1
We revisit the strangeness sector of the interaction between vector mesons of the nonet and ground state baryons (), within the unitary coupled-channel hidden…
Testing the nature of the
Jia-Xin Lin, Jing Song, Miguel Albaladejo +2
We study the feasibility of having the state, predicted within the chiral unitary approach and recently reported by the Belle Collaboration, as corresponding to a state…
Correlation function for the interaction
Pablo Encarnación, Albert Feijoo, Eulogio Oset
We have addressed here the problem of calculating the correlation function of a stable particle with a resonance, in particular one resonance that qualifies as a molecular state of…