Zobrazeno 1 - 10
of 739
pro vyhledávání: '"Vijande J"'
Publikováno v:
Revista Mexicana de F\'isica 63, 411-422 (2017)
We review our recent work about the stability of strange few-body systems containing $N$'s, $\Lambda$'s, and $\Xi$'s. We make use of local central Yukawa-type Malfliet-Tjon interactions reproducing the low-energy parameters and phase shifts of the nu
Externí odkaz:
http://arxiv.org/abs/2007.07080
Publikováno v:
International Journal of Modern Physics E 29 (2020) 1930009
We review the status as regards the existence of three- and four-body bound states made of neutrons and $\Lambda$ hyperons. For interesting cases, the coupling to neutral baryonic systems made of charged particles of different strangeness has been ad
Externí odkaz:
http://arxiv.org/abs/2002.12365
We briefly review the stability of the $QQ\bar q\bar q$-type of tetraquarks with two heavy quarks and two light antiquarks. We present the first comprehensive estimate of the lifetime and leading decay modes of the exotic meson $bb\bar u\bar d$ with
Externí odkaz:
http://arxiv.org/abs/1912.06496
Autor:
Oliver, S., Vijande, J., Tejedor-Aguilar, N., Miró, R., Rovira-Escutia, Juan J., Ballester, F., Juste, B., Carmona, V., Felici, G., Verdú, G., Sanchis, E., Conde, A., Pérez-Calatayud, J.
Publikováno v:
In Radiation Physics and Chemistry November 2023 212
Publikováno v:
Chinese Physics C 44 (2020) 024102
We study the coupled $\Lambda\Lambda nn-\Xi^- pnn$ system to check whether the inclusion of channel coupling is able to bind the $\Lambda\Lambda nn$ system. We use a separable potential three-body model of the coupled $\Lambda\Lambda nn - \Xi^- pnn$
Externí odkaz:
http://arxiv.org/abs/1911.07194
Publikováno v:
Physics Letters B 800 (2020) 135073
We present the first full-fledged study of the flavor-exotic isoscalar $T_{bb}^-\equiv b b \bar u \bar d$ tetraquark with spin and parity $J^P=1^+$. We report accurate solutions of the four-body problem in a quark model, characterizing the structure
Externí odkaz:
http://arxiv.org/abs/1910.13394
Publikováno v:
Phys. Rev. D 99, 094037 (2019)
We investigate the production of exotic tetraquarks, $QQ\bar{q}\bar{q} \equiv T_{QQ}$ ($Q=c$ or $b$ and $q=u$ or $d$), in relativistic heavy-ion collisions using the quark coalescence model. The $T_{QQ}$ yield is given by the overlap of the density m
Externí odkaz:
http://arxiv.org/abs/1905.03877
Publikováno v:
Phys. Lett. B790, 248-250 (2019)
We use a constituent model to analyze the stability of pentaquark $\bar Q qqqq$ configurations with a heavy antiquark $\bar c$ or $\bar b$, and four light quarks $uuds$, $ddsu$ or $ssud$. The interplay between chromoelectric and chromomagnetic effect
Externí odkaz:
http://arxiv.org/abs/1901.03578
Publikováno v:
Journal of Physics: Conf. Series 1137 (2019) 012038
We outline the most important results regarding the stability of doubly heavy tetraquarks $QQ\bar q\bar q$ with an adequate treatment of the four-body dynamics. We consider both color-mixing and spin-dependent effects. Our results are straightforward
Externí odkaz:
http://arxiv.org/abs/1812.10691
Publikováno v:
Phys. Rev. D 98, 114019 (2018)
We study the temperature and baryon density dependence of the masses of the lightest charmed baryons $\Lambda_c$, $\Sigma_c$ and $\Sigma^*_c$. We also look at the effects of the temperature and baryon density on the binding energies of the $\Lambda_c
Externí odkaz:
http://arxiv.org/abs/1812.04766