Zobrazeno 1 - 10
of 676
pro vyhledávání: '"Nieves, Juan"'
Autor:
Montesinos, Victor, Ikeno, Natsumi, Oset, Eulogio, Albaladejo, Miguel, Nieves, Juan, Tolos, Laura
We have studied the feasibility of the experimental determination of the width of a $D$ meson in a nuclear medium by using the method of the nuclear transparency. The cross section for inclusive production of a $D^+$ in different nuclei is evaluated,
Externí odkaz:
http://arxiv.org/abs/2407.19295
We investigate the $\Lambda_c \to \Lambda \ell^{+} \nu_\ell$ decay with a focus on potential new physics (NP) effects in the $\ell = \mu$ channel. We employ an effective Hamiltonian within the framework of the Standard Model Effective Field Theory (S
Externí odkaz:
http://arxiv.org/abs/2407.09325
Autor:
Montesinos, Victor, Song, Jing, Liang, Wei-Hong, Oset, Eulogio, Nieves, Juan, Albaladejo, Miguel
We start from a recently favored picture in which the $\Lambda_c(2940)$ and $\Lambda_c(2910)$ correspond mostly to $ND^*$ bound states with $J^P = 1/2^-,\, 3/2^-$ and then add a $D$ as a third particle, looking for the possible binding of the $DND^*$
Externí odkaz:
http://arxiv.org/abs/2405.09467
Publikováno v:
Phys. Lett. B 853 (2024) 138656
We analyze the modifications that a dense nuclear medium induces in the $D_{s0}^\ast(2317)^\pm$ and $D_{s1}(2460)^\pm$. In the vacuum, we consider them as isoscalar $D^{(*)}K$ and $\overline{D}{}^{(*)}\overline{K}$ $S$-wave bound states, which are dy
Externí odkaz:
http://arxiv.org/abs/2403.00451
Since its first detection, the interesting properties of the $T_{cc}(3875)^+$ have made it to be one of the most prominent tetraquark-like states up to date. In this work we present a joint analysis of the $T_{cc}^+$ and its charge-conjugated partner
Externí odkaz:
http://arxiv.org/abs/2310.02057
We discuss the modification of the properties of the tetraquark-like $T_{cc}(3875)^+$ and $T_{\bar c\bar c}(3875)^-$ states in dense nuclear matter. We consider the $T_{cc}^+$ and $T_{\bar c\bar c}^-$ in vacuum as purely isoscalar $D^{\ast} D$ and $\
Externí odkaz:
http://arxiv.org/abs/2306.17673
Autor:
Tubella, Andrea Aler, Mollo, Dimitri Coelho, Lindström, Adam Dahlgren, Devinney, Hannah, Dignum, Virginia, Ericson, Petter, Jonsson, Anna, Kampik, Timotheus, Lenaerts, Tom, Mendez, Julian Alfredo, Nieves, Juan Carlos
Fairness is central to the ethical and responsible development and use of AI systems, with a large number of frameworks and formal notions of algorithmic fairness being available. However, many of the fairness solutions proposed revolve around techni
Externí odkaz:
http://arxiv.org/abs/2304.11217
We predict femtoscopy correlation functions for $S$--wave $D_{(s)}\phi$ pairs of lightest pseudoscalar open charm mesons and Goldstone bosons from next-to-leading order unitarized heavy-meson chiral perturbation theory amplitudes. The effect of the t
Externí odkaz:
http://arxiv.org/abs/2304.03107
We benefit from the lattice QCD determination by the HPQCD of the Standard Model (SM) form factors for the $\bar B_s\to D_s$ [Phys. Rev. D 101, 074513 (2020)] and the SM and tensor ones for the $\bar B_s\to D_s^{*}$ (arXiv:2304.03137 [hep-lat]) semil
Externí odkaz:
http://arxiv.org/abs/2304.00250
Autor:
Du, Meng-Lin, Filin, Arseniy, Baru, Vadim, Dong, Xiang-Kun, Epelbaum, Evgeny, Guo, Feng-Kun, Hanhart, Christoph, Nefediev, Alexey, Nieves, Juan, Wang, Qian
We discuss recent lattice data for the $T_{cc}(3875)^+$ state to stress, for the first time, a potentially strong impact of left-hand cuts from the one-pion exchange on the pole extraction for near-threshold exotic states. In particular, if the left-
Externí odkaz:
http://arxiv.org/abs/2303.09441