Zobrazeno 1 - 10
of 290
pro vyhledávání: '"TORRES, A. MARTINEZ"'
We present a detailed study of the partial decay widths of a spin-parity resonance $J^P=3/2^-$ $N^*$ with a mass of $\simeq$ 2070 MeV obtained from the coupled channel s wave vector-baryon $\rho N$, $\omega N$, $\phi N$, $K^*\Lambda$ and $K^*\Sigma$
Externí odkaz:
http://arxiv.org/abs/2412.19559
We discuss in this note two dual canonical operations on Dirac structures $L$ and $R$ -- the \emph{tangent product} $L \star R$ and the \emph{cotangent product} $L \circledast R$. Our first result gives an explicit description of the leaves of $L \st
Externí odkaz:
http://arxiv.org/abs/2412.16342
In this work we discuss how femtoscopic analysis can shed light on the nature of the two lightest axial charmed mesons, denominated as $D_1(2430)$ and $D_1(2420)$, whose masses are similar but widths are different. Their properties are reasonably des
Externí odkaz:
http://arxiv.org/abs/2410.18213
In view of the recent discovery of $T_{cc}$, which can be described as a $DD^*$ molecular state, we perform a study of the $KDD^*$ system, and its extension to studying $KD^*D^*$, where $D^*D^*$ is bound as a spin 1 $T_{cc}$-like state, to search for
Externí odkaz:
http://arxiv.org/abs/2409.16281
Autor:
Abreu, Luciano M., Gubler, Philipp, Khemchandani, K. P., Torres, A. Martinez, Hosaka, Atsushi
The femtoscopic $\phi N$ correlation function is studied within a hadronic effective Lagrangian approach with coupled channels, based on hidden local symmetry. The results are compared with the data recently reported by the ALICE collaboration. We fi
Externí odkaz:
http://arxiv.org/abs/2409.05170
Autor:
Khemchandani, K. P., Torres, A. Martinez, Kim, Sang-Ho, Nam, Seung-il, Hosaka, A., Nagahiro, H.
We discuss that some light baryon resonances exhibit properties which cannot be described when attributing a three-valence quark structure to them. Besides pointing out the hadron resonances which clearly require description beyond the quark model, w
Externí odkaz:
http://arxiv.org/abs/2405.02116
We summarize the results we obtained for the partial decay widths of $\phi(2170)$ into two-body final states formed by a $\bar K$ and a Kaonic resonance, like $K(1460)$, $K_1(1270)$, as well as to final states constituted by a $\phi$ and an $\eta/\et
Externí odkaz:
http://arxiv.org/abs/2404.17664
In view of the renewing experimental interest for searching strangeness $+1$ baryons at J-PARC, we study the existence of light baryon resonances with strangeness +1 generated in the $K$-$(N^*/\Delta^*)$ system, where $N^*$ represents either $N^*(153
Externí odkaz:
http://arxiv.org/abs/2404.04078
We present a coupled channel treatment of meson-meson dynamics, for systems with spin-parity $1^+$, and determine the corresponding amplitudes by solving the Bethe-Salpeter equations, which lead to the generation of two axial resonances when mesons a
Externí odkaz:
http://arxiv.org/abs/2312.11811
Autor:
Carvalho, F., Gonçalves, V. P., Khemchandani, K. P., Navarra, F. S., Spiering, D. S., Torres, A. Martínez
Leading $\Lambda$ (LL) production in $ep$ collisions at high energies is investigated using the color dipole formalism and taking into account the nonlinear QCD effects. In particular, the impact of the absorptive effects on the LL spectra are estima
Externí odkaz:
http://arxiv.org/abs/2306.09813