Akademska digitalna zbirka SLovenije - logo
E-viri
Celotno besedilo
Odprti dostop
  • Measurement of the branching fraction of \(J/\psi\rightarrow\rho\pi\) at KEDR
    Anashin, V V; Anchugov, O V; Andrianov, A V; Astrelina, K V; Aulchenko, V M; Baldin, E M; Baranov, G N; Barladyan, A K; A Yu Barnyakov; M Yu Barnyakov; I Yu Basok; Batrakov, A M; Bekhtenev, E A; Belikov, O V; Berkaev, D E; Blinov, A E; Blinov, V E; Blinov, M F; Bobrov, A V; Bobrovnikov, V S; Bogomyagkov, A V; D Yu Bolkhovityanov; Bondar, A E; Buzykaev, A R; Cheblakov, P B; Dorohov, V L; Emanov, F A; Gambaryan, V V; Grigoriev, D N; Kaminskiy, V V; Karnaev, S E; Karpov, G V; Karpov, S V; K Yu Karukina; Kashtankin, D P; Kasyanenko, P V; Katcin, A A; Kharlamova, T A; Kiselev, V A; Kononov, S A; Krasnov, A A; Kravchenko, E A; Kudryavtsev, V N; Kulikov, V F; Kuyanov, I A; Levichev, E B; Logachev, P V; Maksimov, D A; Maltseva, Yu I; Malyshev, V M; Maslennikov, A L; Meshkov, O I; Mishnev, S I; Morozov, I A; Morozov, I I; Nikiforov, D A; Nikitin, S A; Nikolaev, I B; Okunev, I N; Oreshkin, S B; Osipov, A A; Ovtin, I V; Pavlenko, A V; Peleganchuk, S V; Piminov, P A; Podgornov, N A; Prisekin, V G; Rezanova, O L; Ruban, A A; Savinov, G A; Shamov, A G; Shekhtman, L I; Shvedov, D A; Shwartz, B A; Simonov, E A; Sinyatkin, S V; Skrinsky, A N; Sokolov, A V; Starostina, E V; Sukhanov, D P; Sukharev, A M; Talyshev, A A; Tayursky, V A; Telnov, V I; Tikhonov, Yu A; K Yu Todyshev; Tribendis, A G; Tumaikin, G M; Usov, Yu V; Vorobiov, A I; Zhilich, V N; Zhukov, A A; Zhulanov, V V; Zhuravlev, A N; KEDR Collaboration

    arXiv.org, 06/2023
    Paper

    We present the study of the decay \(J/\psi \rightarrow \rho\pi\). The results are based on of 5.2~million \(J/\psi\) events collected by the KEDR detector at the VEPP-4M collider. The branching fractions are measured to be \(\B(J/\psi \rightarrow \rho\pi) = \big(2.072\pm 0.017 \pm 0.062 \big)\cdot 10^{-2}\) and \(\B(J/\psi \rightarrow \pi^+\pi^-\pi^0) = \big(1.878 \pm 0.013 \pm 0.051 \big)\cdot 10^{-2}\), where the first uncertainties are statistical and the second systematic. Our results are more precise than the previous relative measurements.

Vnos na polico