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Related papers: Charmonium and Charm Spectroscopy

200 papers

An overview of the recent first observation of CP violation in the Charm sector by the LHCb collaboration. Selection of theoretical models explaining this measurement is reviewed. Finally, experimental prospects for future measurements are…

High Energy Physics - Experiment · Physics 2020-07-22 Miroslav Saur , Fu-Sheng Yu

The bottom-charmed ($B_c$) mesons are more stable than their charmonium ($c\bar c$) and bottomium ($b\bar b$) partners because they cannot annihilate into gluons. However, the low production cross-sections and signal-to-background ratios…

High Energy Physics - Phenomenology · Physics 2020-04-22 Pablo G. Ortega , Jorge Segovia , David R. Entem , Francisco Fernandez

The analyses of states with double $cs$ content and the search for exotics have recently gained much attention. The Belle experiment collected roughly 1 ab$^{-1}$ integrated luminosity data. While Belle II data-taking is in progress, we…

High Energy Physics - Experiment · Physics 2024-08-13 Dmytro Meleshko , Elisabetta Prencipe , Jens Sören Lange

The exploration of symmetry laws stands as a cutting-edge direction in modern physics research. This work delves into the examination of P and CP symmetry properties within the charm quark system by analyzing asymmetry parameters in the…

High Energy Physics - Phenomenology · Physics 2026-04-21 Yunlu Wang , Yunlong Xiao , Pengcheng Hong

Leptonic and semileptonic decays in the charm sector have been well studied in recent years. With the largest data sample near $D\bar D$ threshold, precision measurements of leptonic and semileptonic decays of charm meson and baryon are…

High Energy Physics - Experiment · Physics 2019-06-24 S. F. Zhang

Results are reported based on samples of 58 million $J/\psi$ and 14 million $\psi(2S)$ decays obtained by the BESII experiment. Improved branching fraction measurements are determined, including branching fractions for…

High Energy Physics - Experiment · Physics 2017-08-23 Frederick A. Harris

This paper gives a short summary of some of the aspects of charmonium which can be addressed at BES and CLEO-c and other $e^+e^-$ facilities. These topics include the spectroscopy of charmonium states, radiative transitions, $e^+e^-$…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Barnes

We review the status of recently observed positive parity charmed resonances, both in the non-strange and in the strange sector. We describe the experimental findings, the main theoretical analyses and the open problems deserving further…

High Energy Physics - Phenomenology · Physics 2009-11-10 P. Colangelo , F. De Fazio , R. Ferrandes

We discuss the significance of charm baryon spectroscopy in hadron physics and review the recent developments of the spectra of charmed baryons in lattice calculations. Special emphasis is given on the recent studies of highly excited charm…

High Energy Physics - Lattice · Physics 2015-08-31 M. Padmanath , Nilmani Mathur

We present recent results in the charm sector from the CLEO Collaboration. The data used were collected by the CLEO II and III detectors at the Cornell Electron Storage Ring (CESR). Measurements of form factors and branching fractions in…

High Energy Physics - Experiment · Physics 2007-05-23 M. S. Dubrovin

The prospects of the future PANDA experiment at FAIR in Darmstadt/Germany in the field of charmonium and charm spectroscopy are discussed.

High Energy Physics - Experiment · Physics 2012-10-18 Marc Pelizaeus

With the help of the largest data samples of $J/\psi$ and $\psi(2S)$ events ever produced in $e^+e^-$ annihilations, the three singlet charmonium states, $\eta_c(1S)$, $\eta_c(2S)$ and $h_c(1P)$, have been extensively studied at the BESIII…

High Energy Physics - Experiment · Physics 2021-09-14 Qingping Ji , Shuangshi Fang , Zhiyong Wang

In this short review we present and discuss all the experimental information about the charged exotic charmonium states, which have been observed over the last five years. We try to understand their properties such as masses and decay…

High Energy Physics - Phenomenology · Physics 2015-06-18 Marina Nielsen , Fernando S. Navarra

This contribution briefly discusses some new theoretical results for the properties of charmonium, especially the "higher charmonium" states above open-charm threshold. In particular we discuss the spectrum of states, open-flavor strong…

High Energy Physics - Phenomenology · Physics 2009-11-10 T. Barnes

In this work, we study the charmonium spectrum within an unquenched quark model including coupled-channel effects. In couple-channel calculations, we include all of the opened charmed meson channels with the once-subtracted method,…

High Energy Physics - Phenomenology · Physics 2023-12-19 Qian Deng , Ru-Hui Ni , Qi Li , Xian-Hui Zhong

We take a new approach to determine the scale parameter $r_0$, the physical masses of strange and charm quarks through a global fit which incorporates continuum extrapolation, chiral extrapolation and quark mass interpolation to the lattice…

High Energy Physics - Lattice · Physics 2014-01-08 Y. B. Yang , Y. Chen , A. Alexandru , S. J. Dong , T. Draper , M. Gong , F. X. Lee , A. Li , K. F. Liu , Z. Liu , M. Lujan , N. Mathur

We present some recent results in rare charm decays from CLEO Collaboration. The data used were collected by the CLEO II and III detectors at the Cornell Electron Storage Ring (CESR). A brief future outlook for the CESR-c/CLEO-c program is…

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

An effective Lagrangian approach based on the heavy quark and chiral symmetry is introduced to analyse the spectroscopy of open charm mesons. Strong two-body decay widths and ratios of branching fractions are computed, and this piece of…

High Energy Physics - Phenomenology · Physics 2013-10-29 Floriana Giannuzzi

This talk reviews an unrepresentative selection of Belle's open-charm and charmonium analyses, focussing on new developments and topics of interest to the DIS community. Highlights include an X(3872) analysis favoring J^PC = 1++, and the…

High Energy Physics - Experiment · Physics 2019-08-14 Bruce Yabsley

Upgrades at the Belle II experiment and the SuperKEKB asymmetric-energy electron-positron collider enable precise measurements of particle decays. Even with early data, Belle II has made several world-leading measurements of particle…

High Energy Physics - Experiment · Physics 2022-07-18 J. V. Bennett