Chinese scientists develop new perovskite-organic tandem solar cells. [Provided to chinadaily.com.cn]Chinese scientists have set a new world record for next-generation solar cells, bringing lightweight, flexible and highly efficient solar power closer to everyday use on everything from wearable devices to space stations.The researchers achieved a certified steady-state power conversion efficien...

The BESIII international collaboration experiment achieved a major breakthrough in charmonium decay research. The research team led by the Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences, for the first time, observed a distinct "resonance-like" structure at the dipion mass threshold. The study was published in Physical Review Letters on April 8.Charmonium, a bound sta...

The Λ hyperon is a baryon containing a strange quark, and its excited states, Λ(1520) and Λ(1690), provide opportunities for probing the strong interaction and understanding quark confinement. Electromagnetic radiative decay processes in which a single photon is emitted, act much like an "electromagnetic CT scan" of the particle and serve as a unique probe of its internal structure. However,...

The BESIII Collaboration recently reported “Observation of charmonium hc radiative decays to multiple light hadrons and the tensor state f2 (1270)”. The paper has been published online in Physical Review Letter on June. 17, 2025. [Phys. Rev. Lett. 134, 241902 (2025)].The study of charmonium radiative decay provides a unique opportunity to deepen our understanding of quantum chromodynamics (...

The BESIII Collaboration has achieved a landmark violation of Bell inequalities using entangled hyperon pairs,marking a pivotal test of quantum nonlocality in high-energy physics. Published in Nature Communications (Nat. Commun.,16,4948 (2025)),the study uses (10.087 ± 0.044) × 10⁹ J/ψ events accumulated at BEPCII/BESIII to probe the ΛΛ entangled system produced in J/ψ→ γηc ,   and...

The BESIII collaboration recently reported the observation of the W-Annihilation Process Ds+→ωρ+ and the measurement of Ds+→ϕρ+. The results have been published in Physics Review Letters on May 22, 2025 [PhysRevLett.134.201902].The polarization information of heavy-flavor mesons decaying into two vector particles(V) has attracted the attention of physicists for decades because of its uni...

The BESIII Collaboration recently reported “Observation of the charmonium decay ηc→γγ in J/ψ→γηc”. The paper has been published online in Physical Review Letters [Phys. Rev. Lett. 134, 181901 (2025)].The charmonium system serves as a golden probe for investigating the nature of quantum chromodynamics (QCD), which is the fundamental theory governing strong interactions. The decay rate ...

The BESIII Collaboration recently reported “Observation of an axial-vector state in the study of the decay ψ(3686)→ϕηη'  ”. The paper has been published online in Physical Review Letter. [Phys. Rev. Lett. 134, 191901 (2025)].A strangeonium state, being the bound state of a light s and anti-s quark, is related to color confinement in strong interactions, which provides insights into non-...

In 2024, the Spin-Parity quantum numbers of the X(2370) particle was determined to be 0-+ for the first time by the BESIII collaboration and its mass is found to be consistent with the theoretically predicted mass of the lightest pseudoscalar glueball. This important experimental measurement supports the interpretation of the X(2370) as the lightest pseudoscalar glueball and it was published i...

The BESIII collaboration recently reported the evidence for two excited Ω- hyperons. The results have been published in Physics Review Letters on March 4, 2025 [Phys. Rev. Lett. 134, 131903 (2025)].Baryons are the simplest system in which all three colors of QCD form a colorless object. Understanding their structure and spectroscopy is a necessary component of a real understanding of QCD. How...