Results 61 to 70 of about 523 (135)

Recent results in (exotic) charmonium spectroscopy from BESIII

open access: yesEPJ Web of Conferences, 2015
We present the recent progress on the (exotic) charmonium spectroscopy from BESIII experiment, This paper focus on the observation of charged charmonium like states and their isospin partners from BESIII, including Zc(3900)±,0, Zc(4020)±,0 Zc(3885)± and ...
Guo Aiqiang
doaj   +1 more source

Light hadron spectroscopy at BESIII [PDF]

open access: yesProceedings of XVII International Conference on Hadron Spectroscopy and Structure — PoS(Hadron2017), 2015
With data of 1.3 billion J/ψ events and 106 million ψ(2S) events collected with the BESIII detector operating at the BEPCII, many different analyses were performed. New baryon states were observed in partial wave analyses of charmonium decays. A comparison between the branching fraction of B(J/ψ → γfo(1710)) to the recent lattice QCD prediction of J/ψ ...
openaire   +1 more source

Measurements of Hadronic and Transition Form Factors at BESIII [PDF]

open access: yesEPJ Web of Conferences, 2019
Motivated by the need of experimental input to improve the Standard Model prediction of the anomalous magnetic moment of the muon aµ, the BESIII Collaboration started a dedicated program to measure hadronic cross sections as well as transition form ...
Redmer Christoph Florian
doaj   +1 more source

XYZ States at BESIII [PDF]

open access: yesProceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016), 2017
Abstract The BESIII experiment has collected about 6 fb-1 luminosity data samples above 3.8 GeV. Recent result on the charmonium(-like) states (or called XYZ states) from BESIII experiment is presented in this talk, including the production and decay of the X(3872) states, the vector Y states, as well as the charged and neutral charmoniumlike Z
openaire   +1 more source

Measurement of the leptonic decay width of J/ψ using initial state radiation

open access: yesPhysics Letters B, 2016
Using a data set of 2.93 fb−1 taken at a center-of-mass energy of s=3.773 GeV with the BESIII detector at the BEPCII collider, we measure the process e+e−→J/ψγ→μ+μ−γ and determine the product of the branching fraction and the electronic width Bμμ⋅Γee ...
M. Ablikim   +418 more
doaj   +1 more source

Partial wave analysis at BESIII [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2014
The BESIII experiment in Beijing takes data in τ-charm domain since 2009. For the moment the world largest samples of J/ψ, ψ(3686), ψ(3770) and ψ(4040) data have been collected. Hadron spectroscopy is a unique way to access QCD, which is one of the most important physics goals of BESIII.
openaire   +2 more sources

The a0(980) and f0(980) in the process Ds+→K+K−π+

open access: yesPhysics Letters B, 2021
In this work, we have investigated the process Ds+→K+K−π+, taking into account the contributions from the S-wave pseudoscalar-pseudoscalar interaction within the chiral unitary approach, and also the intermediate ϕ resonance.
Jun-Ya Wang   +5 more
doaj   +1 more source

BES-III distributed computing status [PDF]

open access: yesКомпьютерные исследования и моделирование, 2015
The BES-III experiment at the IHEP CAS, Beijing, is running at the high-luminosity e+e- collider BEPC-II to study physics of charm quarks and tau leptons.
S. D. Belov   +12 more
doaj   +1 more source

Measurement of cross section for e+e−→Ξ0Ξ¯0 near threshold

open access: yesPhysics Letters B, 2021
Using e+e− collision data at ten center-of-mass energies between 2.644 and 3.080 GeV collected with the BESIII detector at BEPCII and corresponding to an integrated luminosity of about 500 pb−1, we measure the cross sections and effective form factors ...
M. Ablikim   +520 more
doaj   +1 more source

Light Meson Decays at BESIII [PDF]

open access: yesEPJ Web of Conferences
The 10 billion J/ψ decays collected with the BESIII experiment offer a unique opportunity to investigate the decays of η and η′ mesons produced in the radiative J/ψ → γη(′) transitions.
in der Wiesche Nikolai
doaj   +1 more source

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