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Related papers: $\Lambda_{c}(2910)$ and $\Lambda_{c}(2940)$ produc…

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In this work, we investigate the production and decay of the molecular states $cc\bar c\bar q$ with $J^P=1^+$ using the phenomenological analysis and effective Lagrangian approach. Based on an SU(3) flavor symmetry analysis to identify…

High Energy Physics - Phenomenology · Physics 2026-04-06 Na Li , Ye Xing , Jing-Rui Shi

In this work, a study of possible molecular states from the $\Lambda_c\bar{\Lambda}_c$ interaction and their productions in nucleon-antinucleon collision is performed in a quasipotential Bethe-Salpeter equation approach. Two bound states…

High Energy Physics - Phenomenology · Physics 2023-01-04 Lin-Qing Song , Dan Song , Jun-Tao Zhu , Jun He

In this work, we treat $\Lambda_c(2910)^+$ and $\Lambda_c(2940)^+$ as the conventional $udc$ cores dressed with the $D^*N$ channel. We provide a possible interpretation to both $\Lambda_c(2910)^+$ and $\Lambda_c(2940)^+$ within the same…

High Energy Physics - Phenomenology · Physics 2023-03-08 Zi-Le Zhang , Zhan-Wei Liu , Si-Qiang Luo , Fu-Lai Wang , Bo Wang , Hao Xu

In the present work, we investigate $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ production from $\Lambda_b$ decay in a molecular scenario by using an effective Lagrangian approach. We predict the ratio of the branching fraction of $\Lambda_b…

High Energy Physics - Phenomenology · Physics 2019-12-11 Qi Wu , Dian-Yong Chen

The Lambdac(2940)+ baryon with quantum numbers J(P) = 1/2(+) is considered as a molecular state composed of a nucleon and D* meson. We give predictions for the width of the radiative decay process Lambdac(2940)+ to Lambdac(2286)+ gamma in…

High Energy Physics - Phenomenology · Physics 2010-09-03 Yubing Dong , Amand Faessler , Thomas Gutsche , S. Kumano , Valery E. Lyubovitskij

We investigate $S=-1$ hyperon production from the $\Lambda_c^+\to K^-p\pi^+$ and $\Lambda_c^+\to K^0_Sp\pi^0$ decays within the effective Lagrangian approach. We consider the $\Sigma/\Lambda$ ground states, $\Lambda(1520)$,…

High Energy Physics - Phenomenology · Physics 2019-09-04 Jung Keun Ahn , Seongbae Yang , Seung-il Nam

In this talk, we investigate $\Xi(1690)^-$ production from the $K^-p\to K^+K^-\Lambda$ reaction wit the effective Lagrangian method and consider the $s$- and $u$-channel $\Sigma/\Lambda$ ground states and resonances for the $\Xi$-pole…

High Energy Physics - Phenomenology · Physics 2020-01-08 Seung-il Nam , Jung Keun Ahn

In this work, the production mechanisms of the hyperon resonances $\Lambda(1405)$ and $\Lambda(1520)$ in the $\pi^- p$ scattering are investigated within an effective Lagrangian approach incorporating Regge trajectories. By including…

Nuclear Theory · Physics 2026-02-19 Yuan Gao , Xiao-Yun Wang , Xiang Liu

Recent studies show that $D_{s0}^{\ast}(2317)$ and $D_{s1}(2460)$ contain large molecular components. In this work, we employ the naive factorization approach to calculate the production rates of $D_{s0}^{\ast}(2317)$ and $D_{s1}(2460)$ as…

High Energy Physics - Phenomenology · Physics 2024-05-14 Ming-Zhu Liu , Xi-Zhe Ling , Li-Sheng Geng

A search for the Z(3930) resonance in gamma gamma production of the DDbar system has been performed using a data sample corresponding to an integrated luminosity of 384 fb^-1 recorded by the BABAR experiment at the PEP-II asymmetric-energy…

High Energy Physics - Experiment · Physics 2014-11-20 The BABAR Collaboration , B. Aubert

We study the $DN$ and $D^\ast N$ interactions to probe the inner structure of $\Sigma_c(2800)$ and $\Lambda_c(2940)$ with the chiral effective field theory to the next-to-leading order. We consider the contact term, one-pion-exchange and…

High Energy Physics - Phenomenology · Physics 2020-06-02 Bo Wang , Lu Meng , Shi-Lin Zhu

We study the structures in cross sections and R ratios concerning electron-positron annihilation reactions, for open-strangeness, open-charm and open-beauty hadron-pair production, from the perspective of a recently developed production…

High Energy Physics - Phenomenology · Physics 2009-11-19 Eef van Beveren , George Rupp

We investigate the $\Lambda(1520)$ hadronic production in the $p p \to p K^+ \Lambda(1520)$ and $\pi^- p \to K^0 \Lambda(1520)$ reactions within the effective Lagrangian method. For $\pi^- p \to K^0 \Lambda(1520)$ reaction, in addition to…

Nuclear Theory · Physics 2015-06-12 Ju-Jun Xie , Bo-Chao Liu

We conducted a theoretical study on the process $\Sigma^{+} p \to\Lambda a_0^{+} p$ based on an effective Lagrangian approach. This model encompasses the excitation of intermediate states leading to the production of $\Delta(1920)$ through…

High Energy Physics - Phenomenology · Physics 2024-10-18 Yan Dai , Aojia Xu , Gang Li , Mao Song , Xuan Luo

The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected…

High Energy Physics - Experiment · Physics 2024-02-20 LHCb collaboration

Using new experimental data on photoproduction and $\Lambda_b^0$ decays, we derive constraints on the properties of the LHCb $P_c$ states. We conclude that $P_c(4312)$, $P_c(4380)$ and $P_c(4440)$ can be described as $\Sigma_c\bar D$,…

High Energy Physics - Phenomenology · Physics 2022-04-22 T. J. Burns , E. S. Swanson

Motivated by the recent LHCb observations of $T_{c\bar{s}0}(2900)^0$ and $T_{c\bar{s}0}(2900)^{++}$ in the processes $B^0\to\bar{D}^0D_s^+\pi^-$ and $B^+\to D^-D_s^+\pi^+$, we have investigated the decay $B^-\to D_s^+K^-\pi^-$ by taking…

High Energy Physics - Phenomenology · Physics 2024-01-10 Wen-Tao Lyu , Yun-He Lyu , Man-Yu Duan , De-Min Li , Dian-Yong Chen , En Wang

In this work, we investigate the discovery potential for Y(3940) by the photoproduction process $\gamma p\to Y(3940)p$. The numerical result shows that the upper (lower) limit of the total cross section for $\gamma p\to Y(3940)p$ is up to…

High Energy Physics - Phenomenology · Physics 2009-12-09 Jun He , Xiang Liu

In the present work, we examine the production of $\Xi(1530)$ in the $K^- p \to K^{+} \Xi(1530)^{-}$ and $K^- p \to K^{0} \Xi(1530)^{0}$ reactions utilizing an effective Lagrangian approach. To accurately fit the cross sections for both…

High Energy Physics - Phenomenology · Physics 2026-03-20 Quan-Yun Guo , Jing Liu , Peiwen Wu , Dian-Yong Chen

The $\Lambda_c(2940)$, an open-charm baryon discovered in 2006, has sparked interest due to its ``low mass puzzle'', paralleling the $X(3872)$ in the charmoniumlike sector. Both states challenge conventional hadronic interpretations, with…

High Energy Physics - Phenomenology · Physics 2025-09-19 Ping Chen , Zi-Le Zhang , Yu Zhuge