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We study the charmed baryon production reaction ${\bar p} p \to {\bar \Lambda}_c^- \Lambda_c^+$ using the $t$-channel $D^0$ and $D^{*0}$ meson exchange diagrams within an effective Lagrangian model involving the physical hadron masses and…

High Energy Physics - Phenomenology · Physics 2014-07-15 R. Shyam , H. Lenske

The parton and hadron cascade model {\footnotesize PACIAE} is employed to confirm the BESIII newest observation of glueball-like particle $\rm X(2370)$ production in $e^+e^-$ collisions at $\sqrt{s}=4.95\,\mathrm{GeV}$. We coalesce the $\rm…

High Energy Physics - Phenomenology · Physics 2024-07-11 Zhi-Lei She , An-Ke Lei , Wen-Chao Zhang , Yu-Liang Yan , Dai-Mei Zhou , Hua Zheng , Ben-Hao Sa

A solvable coordinate-space model is employed to study the $c\bar{c}$ component of the X(3872) wave function, by coupling a confined $^3P_1$ $c\bar{c}$ state to the almost unbound $S$-wave $D^0\bar{D}^{*0}$ channel via the $^3P_0$…

High Energy Physics - Phenomenology · Physics 2015-06-12 Susana Coito , George Rupp , Eef van Beveren

We report on a theoretical study of the $\pi^- p \to D^- D^0 p$ reaction near threshold within an effective Lagrangian approach. The production process is described by $t$ channel $D^{*0}$ meson exchange, $s$-channel nucleon pole, and $u$…

High Energy Physics - Phenomenology · Physics 2015-11-23 Ju-Jun Xie , Yu-Bing Dong , Xu Cao

We observe an obvious anomalous line-shape of the $e^+e^- \to {\rm hadrons}$ total cross sections in the energy region between 3.700 and 3.872 GeV from the data samples taken with the BES-II detector at the BEPC Collider. Re-analysis of the…

High Energy Physics - Experiment · Physics 2012-08-27 BES Collaboration

In this work, we construct the $S$-wave, $P$-wave, and $D$-wave $D^{(*)}\bar{D}^{*}_{(s)}$/$B^{(*)}\bar{B}^{*}_{(s)}$ interactions by considering the lowest order contributions from the leading order (LO), next-to-leading order (NLO), and…

High Energy Physics - Phenomenology · Physics 2025-08-18 Kan Chen , Jun-Zhang Wang

In this talk results of the study of the $D^0 \to \pi^- e^+ \nu$ decay channel, recorded by the BaBar detector at the c.m. energy close to 10.6 GeV, are reported. The branching fraction of this channel is measured relative to the $D^0 \to…

High Energy Physics - Experiment · Physics 2015-09-15 Arantza Oyanguren

The cross sections of $e^+e^- \rightarrow \pi Z_c(3900) \rightarrow \pi\pi J/\psi$ and $e^+e^- \rightarrow \pi Z_c(3900) \rightarrow \pi D\bar{D}^{*}$ have been measured by BESIII experiment. We try to perform a combined fit to the cross…

High Energy Physics - Phenomenology · Physics 2020-12-02 Jielei Zhang , Tengjiao Zhu

This work deals with form factors of the energy-momentum tensor (EMT) of spin-0 particles and the unknown particle property D-term related to the EMT, and is divided into three parts. The first part explores free, weakly and strongly…

High Energy Physics - Phenomenology · Physics 2017-12-15 Jonathan Hudson , Peter Schweitzer

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

The possible description of Z(4430) as a pseudoresonance structure in $\pi \psi'$ reaction, is considered. The analysis is performed with single-scattering contribution to $\pi \psi'$ elastic scattering via $D^*D_1(2420)$ intermediate…

High Energy Physics - Phenomenology · Physics 2009-06-23 I. V. Danilkin , P. Yu. Kulikov

We conduct a theoretical study of the $ D_{s1}(2460) \to D_s \pi^+ \pi^- $ decay from the perspective that the $D_{s1}$ is a molecular state, built mostly from the $D^* K$ and $D_s^* \eta$ components. The $D^*$ and $D_s^*$ mesons are…

High Energy Physics - Phenomenology · Physics 2025-02-26 L. Roca , J. M. Dias , E. Oset

The $Z^\pm_c(3900)/Z^\pm_c(3885)$ resonant structure has been experimentally observed in the $Y(4260) \to J/\psi \pi\pi$ and $Y(4260) \to \bar{D}^\ast D \pi$ decays. This structure is intriguing since it is a prominent candidate of an…

High Energy Physics - Phenomenology · Physics 2016-03-23 Miguel Albaladejo , Feng-Kun Guo , Carlos Hidalgo-Duque , Juan Nieves

Recently a vector charmonium-like state $Y(4626)$ was observed in the portal of $D^+_sD_{s1}(2536)^-$. It intrigues an active discussion on the structure of the resonance because it has obvious significance for gaining a better…

High Energy Physics - Phenomenology · Physics 2020-06-05 Hong-Wei Ke , Xiao-Hai Liu , Xue-Qian Li

Motivated by the large non-$D\bar{D}$ branching fraction of $\psi(3770)$, we investigate the light meson decays of the $D$-wave charmonia in the present work with the meson loop mechanism. With the parameter range determined by $\psi (3770)…

High Energy Physics - Phenomenology · Physics 2025-05-12 Xiao-Yu Qi , Xing-Dao Guo , Dian-Yong Chen

Under the assignment of $D_s(3040)$ as a radially excited p-wave $\bar cs$ state with $J^P=1^+$, we compute the $B_s\to D_s (3040)$ form factors within the covariant light-front quark model. Two classification schemes for the p-wave $\bar…

High Energy Physics - Phenomenology · Physics 2010-12-23 Gang Li , Feng-lan Shao , Wei Wang

We present some recent results in hadronic decays and cross-section measurements at Psi(3770) from CLEO collaboration. They include measurement of absolute hadronic branching fractions of D mesons and e+e- to DDbar cross-sections, inclusive…

High Energy Physics - Experiment · Physics 2007-05-23 Yongsheng Gao

The recently discovered $D_{s0}(2590)$ state by the LHCb collaboration was regarded as the first excited state of $^1S_{0}$ charmed-strange meson. Its mass is, however, lower than the Godfrey-Isgur quark model prediction by about 80 MeV. In…

High Energy Physics - Phenomenology · Physics 2021-12-15 Jia-Ming Xie , Ming-Zhu Liu , Li-Sheng Geng

We measure the dependence of $\bar B^0 \to D^{*+}e^-\bar{\nu}_e$ on the decay angles and momentum transfer. The data sample consists of $\sim 86 \times 10^6$ $B\bar B$-pairs accumulated on the $\Upsilon(4{\rm S})$ resonance by the BABAR…

High Energy Physics - Experiment · Physics 2012-08-27 The BABAR Collaboration

The production yield of prompt D mesons and their elliptic flow coefficient $v_2$ were measured with the Event-Shape Engineering (ESE) technique applied to mid-central (10-30% and 30-50% centrality classes) Pb-Pb collisions at the…

Nuclear Experiment · Physics 2019-11-11 ALICE Collaboration