Study of the running coupling constant of 𝝅− mesons and protons from 𝒑+𝒑 and 𝒑+𝑪 interactions at 4.2 𝑮𝒆𝑽/𝒄

16 Sept 2025, 15:00
20m
LHEP-215/NICA Hall - NICA Hall (VBLHEP)

LHEP-215/NICA Hall - NICA Hall

VBLHEP

35
Show room on map
20 min. Cumulative and subthreshold processes Applied use of relativistic beams

Speaker

Murdorj, Urangua (Mongolian Academy of Science, Institute of Physics and Technology)

Description

This paper is devoted to the study of the running coupling constant $\alpha_s$ ($q^2$ ) of $\pi^-$ meson and protons from p+p and p+C interactions at 4.2 GeV/c. It is well known fact that the more correct value of the cut parameter $\Lambda_{QCD}$ in the formula of $\alpha_s$ ($q^2$ ) plays very important role in the obtaining the right values of the strong coupling constant $\alpha_s$ ($q^2$ ). The value of $\Lambda_{QCD}$, determined in previous works, was employed in our calculations,
\begin{equation}
\Lambda_{QCD}= (c \hbar) GeV = 0.197 GeV
\end{equation}

The values of $\alpha_s$ ($q^2$ ) obtained with this cut parameter are compared to the QCD predictions.

Authors

Mr Baatar, Otgongerel (Institute of Physics and Technology, Mongolia) Mr Gombojav, Sharkhuu (Mongolian Academy of Science, Institute of Physics and Technology) Maamuu, Sovd (IHEP) Malakhov, Aleksandr (JINR) Murdorj, Urangua (Mongolian Academy of Science, Institute of Physics and Technology) Mrs Narankhuu, Khishigbuyan (Mongolian Academy of Science, Institute of Physics and Technology) Mr Tseepeldorj, Baatar (Institute of Physics and Technology, MAS)

Presentation materials