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相关论文: The $D\bar{D}^*$ interaction with isospin zero in …

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The isospin breaking effect plays an essential role in generating hadronic molecular states with a very tiny binding energy. Very recently, the LHCb Collaboration observed a very narrow doubly charmed tetraquark $T_{cc}^+$ in the…

高能物理 - 唯象学 · 物理学 2022-01-07 Rui Chen , Qi Huang , Xiang Liu , Shi-Lin Zhu

The spectrum of the charmed meson-(anti)meson system is a fundamental tool for disentangling the nature of a few exotic hadrons, including the recently discovered $T_{cc}^+(3875)$ tetraquark, the $X(3960)$, or the $X(3872)$, the nature of…

高能物理 - 唯象学 · 物理学 2024-10-22 Fang-Zheng Peng , Mao-Jun Yan , Manuel Pavon Valderrama

We investigate the Dbar-N interaction at low energies using a meson-exchange model supplemented with a short-distance contribution from one-gluon-exchange. The model is developed in close analogy to the meson-exchange KN interaction of the…

核理论 · 物理学 2008-11-26 J. Haidenbauer , G. Krein , Ulf-G. Meißner , A. Sibirtsev

We consider pion interactions in an effective field theory of the narrow resonance X(3872), assuming it is a weakly bound molecule of the charm mesons D^{0} \bar D^{*0} and D^{*0} \bar D^{0}. Since the hyperfine splitting of the D^{0} and…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Fleming , M. Kusunoki , T. Mehen , U. van Kolck

Cross sections for the charm-production reactions $\bar p p \to \bar \Lambda_c^- \Sigma_c^+$, $\bar \Sigma_c\Sigma_c$, $\bar \Xi_c\Xi_c$, and $\bar \Xi_c'\Xi_c'$ are presented, for energies near their respective thresholds. The results are…

核理论 · 物理学 2017-01-25 J. Haidenbauer , G. Krein

The pionic decay rates of the excited $L=0,1$ $D$ mesons are calculated with a Hamiltonian model within the framework of the covariant Blankenbecler-Sugar {equation.} The interaction between the light quark and charm antiquark is described…

高能物理 - 唯象学 · 物理学 2009-10-31 K. O. E. Henriksson , T. A. Lahde , C. J. Nyfalt , D. O. Riska

The interactions of $\bar{D}^{(*)} \Lambda_c - \bar{D}^{(*)}\Sigma_c^{(*)}$ are studied within the framework of a dynamical coupled-channel approach. A series of bound states and resonances with different spin and parity are dynamically…

高能物理 - 唯象学 · 物理学 2022-06-08 Zheng-Li Wang , Chao-Wei Shen , Deborah Rönchen , Ulf-G. Meißner , Bing-Song Zou

We study the possibly-existing molecular pentaquark states with open charm and bottom flavors, {\it i.e.}, the states with the quark contents $c\bar{b}qqq$ and $b\bar{c}qqq$ ($q=u,d,s$). We investigate the meson-baryon interactions through…

高能物理 - 唯象学 · 物理学 2024-01-26 Jia-Xin Lin , Hua-Xing Chen , Wei-Hong Liang , Wen-Ying Liu , Dan Zhou

We apply a unitary approach together with a set of hidden-gauge Lagrangians to study the vector-vector interaction. We study the case of the $\rho$($\omega$)$D^*$ interaction within the model. In $I=1/2$ we get strong enough attraction to…

高能物理 - 唯象学 · 物理学 2015-05-18 R. Molina , H. Nagahiro , A. Hosaka , E. Oset

We investigate the $\sigma$ and $\rho$ coupling constants for the $DD$ and $D^*D^*$ interactions, based on correlated $2\pi$ exchange in the $DD$ and $D^*D^*$ interactions. Starting from the $D\bar{D}\to \pi\pi$ and $D^*\bar{D}^*\to \pi\pi$…

高能物理 - 唯象学 · 物理学 2020-07-22 Hee-Jin Kim , Hyun-Chul Kim

We investigate potential hadronic molecular states in the $D^{(*)}\bar D^{(*)}$ and $B^{(*)}\bar B^{*}$ systems using light meson exchange interactions. Our analysis focuses on coupled-channel systems with spin-parity quantum numbers…

高能物理 - 唯象学 · 物理学 2025-05-29 Nijiati Yalikun , Xiang-Kun Dong , Ulf-G. Meißner

The properties of open charm mesons, $D$, $\bar D$, $D_s$ and $\bar D_s$ in nuclear matter at finite temperature are studied within a self-consistent coupled-channel approach. The interaction of the low lying pseudoscalar mesons with the…

高能物理 - 唯象学 · 物理学 2011-08-09 C. E. Jiménez-Tejero , A. Ramos , L. Tolós , I. Vidaña

The $X$(3872) formation and decay processes in the $B$-decay are investigated by a $c\bar c$-two-meson hybrid model. The two-meson state consists of the $D^0{\bar D}^*{}^0$, $D^+D^{*-}$, $J/\psi\rho$, and $J/\psi\omega$ channels. The…

高能物理 - 唯象学 · 物理学 2015-05-13 Sachiko Takeuchi , Kiyotaka Shimizu , Makoto Takizawa

In this paper it is proposed that the charged charmonium-like state $Z_c(3900)$ is a resonance above the threshold from the $D\bar{D}^*$ interaction. The $D\bar{D}^*$ interaction is described by the one-boson exchange model with light meson…

高能物理 - 唯象学 · 物理学 2015-08-12 Jun He

We discuss the possibility and the description of bound states between $B$ and $\bar{B}^*$ mesons. We argue that the existence of such a bound state can be deduced from (i) the weakly bound X(3872) state, (ii) certain assumptions about the…

高能物理 - 唯象学 · 物理学 2015-05-28 J. Nieves , M. Pavon Valderrama

If the $X(3872)$ is a weakly bound charm-meson molecule, it can be produced by the creation of $D^{*0} \bar{D}^0$ or $D^{0} \bar{D}^{*0}$ at short distances followed by the formation of the bound state from the charm-meson pairs. It can…

高能物理 - 唯象学 · 物理学 2019-10-25 Eric Braaten , Li-Ping He , Kevin Ingles

In this paper we study dynamical supersymmetry breaking in absence of gravity with the matter content of the minimal supersymmetric standard model. The hidden sector of the theory is a strongly coupled gauge theory, realized in terms of…

高能物理 - 理论 · 物理学 2010-11-11 F. Fucito , A. Lionetto , J. F. Morales , R. Richter

Using the one-boson-exchange model, we investigate the $\Lambda_c\bar{D}_s^*$, $\Sigma_c\bar{D}_s^*$, $\Sigma_c^*\bar{D}_s^*$, $\Xi_c\bar{D}^*$, $\Xi_c'\bar{D}^*$, and $\Xi_c^*\bar{D}^*$ interactions by considering the one-eta-exchange…

高能物理 - 唯象学 · 物理学 2017-09-11 Rui Chen , Jun He , Xiang Liu

The interactions of $\bar{D}\Sigma_{c}$-$\bar D\Lambda_c$, $\bar{D}^{*}\Sigma_{c}$-$\bar D^*\Lambda_c$, and related strangeness channels, are studied within the framework of the coupled channel unitary approach with the local hidden gauge…

核理论 · 物理学 2015-03-17 Jia-Jun Wu , R. Molina , E. Oset , B. S. Zou

The meson $X(3872)$ and several related states appear to be, at least in part, hadronic molecules in which a heavy flavored meson (such as $D^0$) is bound to another heavy meson (such as $\bar D^{*0}$). Although not the only effect…

高能物理 - 唯象学 · 物理学 2016-08-24 Marek Karliner , Jonathan L. Rosner