Para acceder a los documentos con el texto completo, por favor, siga el siguiente enlace:

Reanalysis of lattice QCD spectra leading to the $D_{s0}^*(2317)$ and $D_{s1}^*(2460)$
Martínez Torres, A.; Turbany Oset, Jaume; Prelovsek, S.; Ramos Gómez, Àngels
Universitat de Barcelona
We perform a reanalysis of the energy levels obtained in a recent lattice QCD simulation, from where the existence of bound states of KD and KD ∗ are induced and identified with the narrow D s0 ∗ (2317) and D s1 ∗ (2460) resonances. The reanalysis is done in terms of an auxiliary potential, employing a single-channel basis KD(∗), and a two-channel basis KD(∗), ηD s (∗) . By means of an extended Lüscher method we determine poles of the continuum t-matrix, bound by about 40 MeV with respect to the KD and KD ∗ thresholds, which we identify with the D s0 ∗ (2317) and D s1 ∗ (2460) resonances. Using a sum rule that reformulates Weinberg compositeness condition we can determine that the state D s0 ∗ (2317) contains a KD component in an amount of about 70%, while the state D s1 ∗ (2460) contains a similar amount of KD ∗. We argue that the present lattice simulation results do not still allow us to determine which are the missing channels in the bound state wave functions and we discuss the necessary information that can lead to answer this question.
Cromodinàmica quàntica
Partícules (Física nuclear)
Quantum chromodynamics
Particles (Nuclear physics)
cc-by (c) Martínez Torres, A. et al., 2015
Springer Verlag

Mostrar el registro completo del ítem

Documentos relacionados

Otros documentos del mismo autor/a

Arnau Gras, Jaume; Damen, Ernst J. P.; Salafranca i Cosialls, Lluís; Turbany Oset, Jaume
Peró, Maribel; Guàrdia Olmos, Joan; Freixa Blanxart, Montserrat; Turbany Oset, Jaume; Gordóvil Merino, Amalia
Guàrdia Olmos, Joan; Carrera Fernández, María Jesús; Peró, Maribel; Gordóvil Merino, Amalia; Turbany Oset, Jaume; Freixa Blanxart, Montserrat
Peró, Maribel; Guàrdia Olmos, Joan; Turbany Oset, Jaume; Farràs-Permanyer, Laia; Mancho-Fora, Núria
Peró, Maribel; Guàrdia Olmos, Joan; Turbany Oset, Jaume; Freixa Blanxart, Montserrat; Honrubia Serrano, Ma. Luisa; Carreras Archs, M. Victòria; Barrios Cerrejón, M. Teresa; Cosculluela Mas, Antonio; Rifà Ros, Esteve Xavier