Publications by authors named "I I Nikolaev"
Using the e^{+}e^{-} collision data collected with the BESIII detector operating at the BEPCII collider, at center-of-mass energies from the threshold to 4.95 GeV, we present precise measurements of the cross section for the process e^{+}e^{-}→D_{s}^{+}D_{s}^{-} using a single-tag method. The resulting cross section line shape exhibits several new structures, thereby offering an input for a future coupled-channel analysis and model tests, which are critical to understand vector charmonium-like states with masses between 4 and 5 GeV.
View Article and Find Full Text PDFWe report the precise measurements of the cross section of e^{+}e^{-}→hadrons at center-of-mass energies from 3.645 to 3.871 GeV.
View Article and Find Full Text PDFColor difference models (CDMs) are essential for accurate color reproduction in image processing. While CDMs aim to reflect perceived color differences (CDs) from psychophysical data, they remain largely untested in wide color gamut (WCG) and high dynamic range (HDR) contexts, which are underrepresented in current datasets. This gap highlights the need to validate CDMs across WCG and HDR.
View Article and Find Full Text PDFArticle Synopsis
- The study investigates the processes e^{+}e^{-}→D_{s}^{+}D_{s1}(2536)^{-} and e^{+}e^{-}→D_{s}^{+}D_{s2}^{*}(2573)^{-} using data from the BESIII detector, focusing on a range of center-of-mass energies.
- For the first time, the absolute branching fractions of the decay processes for D_{s1}(2536)^{-} and D_{s2}^{*}(2573)^{-} are measured, revealing values of 35.9% and 37.4% respectively.
- The research identifies a resonant structure around 4.6 Ge
Article Synopsis
- Scientists used special data from a detector to look for rare particle decays of a type called the D_{s}^{+} decay, focusing on how it might change into other particles like kaons or pions.
- They found strong evidence for the decay D_{s}^{+}→π^{+}ϕ and also discovered a new decay D_{s}^{+}→ρ^{+}ϕ, both involving particles that decay into pairs of electrons.
- However, they didn't find strong signals for three other types of decays they were looking for, and set limits on how often those changes could happen.