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Related papers: A cylindrical GEM detector for BES III

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BESIII is a currently running tau-charm factory with the largest samples of on threshold charm meson pairs, directly produced charmonia and some other unique datasets at BEPCII collider. Machine learning techniques have been employed to…

Instrumentation and Detectors · Physics 2018-11-16 Beijiang Liu , Xian Xiong , Guoyi Hou , Shiming Song , Lin Shen

Reconstruction of tracks of charged particles with high precision is very crucial for HEP experiments to achieve their physics goals. As the tracking detector of BESIII experiment, the BESIII drift chamber has suffered from aging effects…

The triple GEM detector is a micropattern gas detector which consists of a primary ionisation gap and three consecutive gas electron multiplier (GEM) foils. A printed circuit board with readout strips detects the current induced by the…

High Energy Physics - Experiment · Physics 2009-10-31 M. Ziegler , P. Sievers , U. Straumann

BESIII is a high precision, general purpose detector for the high luminosity $e^+e^-$ collider, BEPCII, running at the tau-charm energy region. Its design and current status of construction is presented.

High Energy Physics - Experiment · Physics 2009-11-13 Yi-Fang Wang

This paper will discuss the design and construction of BESIII, which is designed to study physics in the tau-charm energy region utilizing the new high luminosity BEPCII double ring e+e- collider. The expected performance will be given…

Instrumentation and Detectors · Physics 2012-08-27 The BESIII Collaboration

Despite the successes of the standard model, the non-perturbative dynamics of the strong interaction are not fully understood yet. Charmonium spectroscopy serves as an ideal tool to shed light on the dynamics of the strong interaction such…

High Energy Physics - Experiment · Physics 2019-08-14 Johan Messchendorp

BESIII is a new state-of-the-art 4$\pi$ detector at the upgraded BEPCII two-ring $\ee$ collider at the Institute of High Energy Physics in Beijing, China. It has been in operation since 2008, and has collected the world's largest data…

High Energy Physics - Experiment · Physics 2019-08-13 Guangshun Huang

The cornerstone of the Chinese experimental particle physics program consists of a series of experiments performed in the tau-charm energy region. China began building e+e- colliders at the Institute for High Energy Physics in Beijing more…

High Energy Physics - Experiment · Physics 2016-11-23 Roy A. Briere , Frederick A. Harris , Ryan E. Mitchell

Two GEM telescopes, each consisting of three 10x10 cm$^2$ triple-GEM chambers were built, tested and operated by the Hampton University group. The GEMs are read out with APV25 frontend chips and FPGA based digitizing electronics developed…

Instrumentation and Detectors · Physics 2018-03-02 Anusha Liyanage , Michael Kohl , Jesmin Nazeer , Tanvi Patel

For its physics program with a high-intensity hadron beam of up to 2e7 particles/s, the COMPASS experiment at CERN requires tracking of charged particles scattered by very small angles with respect to the incident beam direction. While good…

CYGNO is a project realising a cubic meter demonstrator to study the scalability of the performance of the optical approach for the readout of large-volume, GEM-equipped TPC. This is part of the CYGNUS proto-collaboration which aims at…

BESIII is a new state-of-the-art 4pi detector at the recently upgraded BEPCII two-ring e+e- collider at the Institute of High Energy Physics in Beijing. It has been in operation for three years, during which time it has collected the…

Nuclear Experiment · Physics 2019-08-13 Stephen Lars Olsen

The status of the R&D on the Cylindrical-GEM (CGEM) detector foreseen as Inner Tracker for KLOE-2, the upgrade of the KLOE experiment at the DAFNE phi-factory, will be presented. The R&D includes several activities: i) the construction and…

The Circular Electron Positron Collider (CEPC) has been proposed to enable more thorough and precise measurements of the properties of Higgs, W, and Z bosons, as well as to search for new physics. In response to the stringent performance…

With the ability to run above 4~GeV, the BESIII experiment located in the Beijing Electron Positron Collider (BEPCII), has becoming a pioneer in searching and studying charmoniumlike states ($XYZ$ particles). In 2013, BESIII Collaboration…

High Energy Physics - Experiment · Physics 2015-04-24 Zhiqing Liu

Using 58 million $J/\psi$ and 14 million $\psi(2S)$ events collected by the BESII detector at the BEPC, branching fractions or upper limits for the decays $J/\psi$ and $\psi(2S) \to \Lambda \bar{\Lambda} \pi^0$ and $\Lambda \bar{\Lambda}…

High Energy Physics - Experiment · Physics 2007-12-19 Frederick A. Harris

The physics studies at heavy-ion nucleus-nucleus collision experiments demand reliable detectors at high particle flux. Therefore, Gas Electron Multipliers (GEM) detectors, which show resilience to extreme radiation, are one of the prime…