SCOAP3 Repository 9 records found  Search took 0.01 seconds. 
1. Description of the Ξc and Ξb states as molecular states / Yu, Q. X. ; Pavao, R. ; Debastiani, V. R. ; Oset, E.
In this work we study several Ξc and Ξb states dynamically generated from the meson–baryon interaction in coupled channels, using an extension of the local hidden gauge approach in the Bethe–Salpeter equation. [...]
Published in EPJC 79 (2019) 167 10.1140/epjc/s10052-019-6665-z
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2. Considerations on the Schmid theorem for triangle singularities / Debastiani, V. R. ; Sakai, S. ; Oset, E.
We investigate the Schmid theorem, which states that if one has a tree level mechanism with a particle decaying to two particles and one of them decaying posteriorly to two other particles, the possible triangle singularity developed by the mechanism of elastic rescattering of two of the three decay particles does not change the cross section provided by the tree level. [...]
Published in EPJC 79 (2019) 69 10.1140/epjc/s10052-019-6558-1
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3. A non-relativistic model for the tetraquarkThe authors acknowledge the support received from the brazilian funding agencies FAPESP (contract 12/50984-4), CNPq and CAPES. V. R. Debastiani also acknowledges the support from Generalitat Valenciana in the Program Santiago Grisolia (Exp. GRISOLIA/2015/005) / Debastiani, V. R. ; Navarra, F. S.
We use a non-relativistic model to study the spectroscopy of a tetraquark composed of in a diquark-antidiquark configuration. [...]
Published in Chinese Phys. C 43 (2019) 013105 10.1088/1674-1137/43/1/013105 arXiv:1706.07553
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4. Ωb(Ξc+K)π decay and the Ωc states / Debastiani, V. R. ; Dias, J. M. ; Liang, Wei-Hong ; Oset, E.
We study the weak decay Ωb(Ξc+K)π, in view of the narrow Ωc states recently measured by the LHCb Collaboration and later confirmed by the Belle Collaboration. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.094022 arXiv:1803.03268
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5. Doubly charmed Ξcc molecular states from meson-baryon interaction / Dias, J. M. ; Debastiani, V. R. ; Xie, Ju-Jun ; Oset, E.
Stimulated by the new experimental LHCb findings associated with the Ωc states, some of which we have described in a previous work as being dynamically generated through meson-baryon interaction, we have extended this approach to make predictions for new Ξcc molecular states in the C=2, S=0, and I=1/2 sector. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.094017 arXiv:1805.03286
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6. Molecular Ωc states generated from coupled meson-baryon channels / Debastiani, V. R. ; Dias, J. M. ; Liang, W. H. ; Oset, E.
We have investigated Ωc states that are dynamically generated from the meson-baryon interaction. [...]
Published in Physical Review D 97 (2018) 10.1103/PhysRevD.97.094035 arXiv:1710.04231
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7. The radiative decay with vector meson dominanceJ. M. Dias would like to thank the Brazilian funding agency FAPESP for the financial support (2016/22561-2), V. R. Debastiani wishes to acknowledge the support from the Programa Santiago Grisolia of Generalitat Valenciana (Exp. GRISOLIA/2015/005). This work is also partly supported by the Spanish Ministerio de Economia y Competitividad and European FEDER funds (FIS2014-57026- REDT, FIS2014-51948-C2-1-P, FIS2014-51948-C2-2-P), and the Generalitat Valenciana in the program Prometeo II-2014/068. This work is partly supported by the National Natural Science Foundation of China (11475227, 11735003) and the Youth Innovation Promotion Association CAS (2016367) / Dias, J. M. ; Debastiani, V. R. ; Xie, Ju-Jun ; Oset, E.
Motivated by the experimental measurements of D0 radiative decay modes, we have proposed a model to study the decay, by establishing a link with (V=ρ0, ω) decays through the vector meson dominance hypothesis. [...]
Published in Chinese Phys. C 42 (2018) 043106 10.1088/1674-1137/42/4/043106 arXiv:1711.09924
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8. Molecular Ω b states / Liang, Wei-Hong ; Dias, J.M. ; Debastiani, V.R. ; Oset, E.
Motivated by the recent finding of five Ωc states by the LHCb collaboration, and the successful reproduction of three of them in a recent approach searching for molecular states of meson–baryon with the quantum numbers of Ωc , we extend these ideas and make predictions for the interaction of meson–baryon in the beauty sector, searching for poles in the scattering matrix that correspond to physical states. [...]
Published in Nuclear Physics B 930 (2018) 524-532 10.1016/j.nuclphysb.2018.03.008
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9. a 0 (980)− f 0 (980) mixing in χ c 1 → π 0 f 0 (980)→ π 0 π + π − and χ c 1 → π 0 a 0 (980)→ π 0 π 0 η / Bayar, M. ; Debastiani, V.R.
We study the isospin breaking in the reactions χc1→π0π+π− and χc1→π0π0η and its relation to the a0(980)−f0(980) mixing, which was measured by the BESIII Collaboration. [...]
Published in Physics letters B (2017) 10.1016/j.physletb.2017.10.061
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