Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Pacheco, Emmanuel"'
Autor:
Vujmilovic, Ivan, Collins, Sara, Leskovec, Luka, Ortiz-Pacheco, Emmanuel, Padmanath, M., Prelovsek, Sasa
The determination of the $DD^{*}$ scattering amplitude from lattice QCD is complicated by long-range interactions. In particular, the L\"uscher method is no longer applicable in the kinematical region close to the left-hand cut. We tackle this proble
Externí odkaz:
http://arxiv.org/abs/2411.08646
Autor:
Meng, Lu, Ortiz-Pacheco, Emmanuel, Baru, Vadim, Epelbaum, Evgeny, Padmanath, M., Prelovsek, Sasa
Experimentally, the doubly charm tetraquark channel $cc\bar q\bar q$ with $q\!=\!u,d$ features an exotic hadron, $T_{cc}$, with isospin $I\!=\!0$ near the $DD^*$ threshold, while no peak was observed for $I\!=\!1$. We present a lattice QCD study of t
Externí odkaz:
http://arxiv.org/abs/2411.06266
We present a study of two-body decay widths of heavy baryons into another heavy baryon and a light pseudoscalar meson in the framework of the non-relativistic quark model in combination with the elementary emission model for the strong couplings. The
Externí odkaz:
http://arxiv.org/abs/2410.09622
Publikováno v:
PoS(LATTICE2023)
We perform a lattice simulation to investigate the doubly charmed tetraquark $T^+_{cc}$ observed by the LHCb collaboration, slightly below the $D^{*+}D^0$ threshold, with flavor content $cc\bar{u}\bar{d}$ and isospin-$0$. Two-meson interpolators are
Externí odkaz:
http://arxiv.org/abs/2312.13441
We present a study of mass spectra and electromagnetic couplings of $S$- and $P$-wave heavy baryons in the framework of a non-relativistic harmonic oscillator quark model. Particular attention is paid to the properties of heavy cascade baryons, $\Xi_
Externí odkaz:
http://arxiv.org/abs/2310.01660
We present a study of the low-lying $\Xi_{c/b}$ and $\Xi'_{c/b}$ baryon states based on masses, strong and radiative decays. In a harmonic oscillator quark model analysis it is found that the majority of the detected states can be interpreted as $S$-
Externí odkaz:
http://arxiv.org/abs/2309.12266
Publikováno v:
Phys. Rev. D 108, 054014 (2023)
We present a study of mass spectra and electromagnetic couplings of S- and P-wave baryons containing one, two or three heavy quarks, either charm (c) or bottom (b), in the framework of a non-relativistic harmonic oscillator quark model. A simultaneou
Externí odkaz:
http://arxiv.org/abs/2307.04939
Autor:
Bijker, Roelof, García-Tecocoatzi, Hugo, Giachino, Alessandro, Ortiz-Pacheco, Emmanuel, Santopinto, Elena
In this article, we present a complete classification of the negative parity $\Xi'_{c/b}$ and $\Xi_{c/b}$ $P$-wave states: 7 belonging to the $SU(3)$ flavor sextet and 7 to the flavor anti-triplet, the calculation of the $\Xi'_{c/b}$ and $\Xi_{c/b}$
Externí odkaz:
http://arxiv.org/abs/2010.12437
Publikováno v:
J. Phys. Conf. Ser. 1078, 012005 (2018)
In this contribution, we discuss the electromagnetic and weak decays of baryons in the unquenched quark model and show that the observed discrepancies between the experimental data and the predictions of the constituent quark model can be accounted f
Externí odkaz:
http://arxiv.org/abs/1809.01014
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 46 (2019) 065104
We develop an extension of the usual three flavor quark model to four flavors (u, d, s and c), and discuss the classification of pentaquark states with hidden charm. We fit our model to the known baryon spectrum and we predict the double and triple c
Externí odkaz:
http://arxiv.org/abs/1808.10512