Zobrazeno 1 - 10
of 1 195
pro vyhledávání: '"Zou, Bing"'
Strong empirical and phenomenological indications exist for large sea-quark admixtures in the low-lying excited baryons. Investigating the low-lying excited baryon $\Sigma^*(1/2^-)$ is important to determine the nature of the low-lying excited baryon
Externí odkaz:
http://arxiv.org/abs/2406.07839
We extend our previous study of the interactions of $\bar{D}^{(*)} \Lambda_c - \bar{D}^{(*)}\Sigma_c^{(*)}$ within an analytic, unitary, coupled-channel approach by including the $J/\psi p$ channel and performing fits to the $J/\psi p$ invariant mass
Externí odkaz:
http://arxiv.org/abs/2405.02626
Ascribed as $\rho\rho$ and $K^* \bar{K}^*$ molecular states, respectively, iso-scalar $f_0(1500)$ and $f_0(1710)$ states are expected to have iso-vector partners, potentially identified as $a_0(1450)$ and $a_0(1710)$. The predicted dominant decay mod
Externí odkaz:
http://arxiv.org/abs/2404.04826
Publikováno v:
Phys.Rev.D 109 (2024) 7, 074041
We investigate the possibility of deuteron-like $\Sigma_c^*\bar{\Sigma}$ bound states within the one-boson-exchange model and systematically analyze the effects of the contact-range $\delta^{3}(\vec{r}\,)$ potential, the tensor term from the vector-m
Externí odkaz:
http://arxiv.org/abs/2403.04218
Publikováno v:
Phys.Lett.B 853 (2024) 138646
The primary objective of this study is to investigate hadronic molecules of $K^*\bar K_1(1270)$ using a one-boson-exchange model, which incorporates exchanges of vector and pseudoscalar mesons in the $t$-channel, as well as the pion exchange in the $
Externí odkaz:
http://arxiv.org/abs/2402.02903
Two-pole structures refer to the fact that two dynamically generated states are located close to each other between two coupled channels and have a mass difference smaller than the sum of their widths. Thus, the two poles overlap in the invariant mas
Externí odkaz:
http://arxiv.org/abs/2312.17287
A novel approach is proposed to probe the nature of the double charm tetraquark through the measurement of production asymmetry between $T_{\bar{c}\bar{c}}^-$ and $T_{cc}^+$ in $pp$ collisions. When comparing two theoretical pictures, the compact tet
Externí odkaz:
http://arxiv.org/abs/2310.04258
We extend the chiral quark model for $u$, $d$, $c$ and $b$ quarks with vector mesons, which we proposed in the previous analysis, to a model with the $s$ quark. We include the nonet pseudo-scalar and vector mesons together with the singlet scalar mes
Externí odkaz:
http://arxiv.org/abs/2307.16280
In the past two decades, one of the most puzzling phenomena discovered in hadron physics is that a nominal hadronic state can actually correspond to two poles on the complex energy plane. This phenomenon was first noticed for the $\Lambda(1405)$, the
Externí odkaz:
http://arxiv.org/abs/2307.11631
Based on the high statistical data of the CLAS Collaboration on $\gamma p \to \phi p$ reaction in the center-of-mass energy range of 2.2 GeV to 2.8 GeV, we investigate the possible existence of strange molecular partners of $P_c$ states, i.e., $N^*(2
Externí odkaz:
http://arxiv.org/abs/2306.15385