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Measurement of Γee(J/ψ) with KEDR detector

التفاصيل البيبلوغرافية
العنوان: Measurement of Γee(J/ψ) with KEDR detector
المؤلفون: V. V Anashin, V. M Aulchenko, E. M Baldin, A. K Barladyan, A. Y Barnyakov, M. Y Barnyakov, S. E Baru, I. V Bedny, A. E Blinov, V. E Blinov, A. V Bobrov, V. S Bobrovnikov, A. V Bogomyagkov, A. E Bondar, D. V Bondarev, A. R Buzykaev, S. I Eidelman, Y. M Glukhovchenko, V. V Gulevich, D. V Gusev, S. E Karnaev, G. V Karpov, S. V Karpov, T. A Kharlamova, V. A Kiselev, S. A Kononov, K. Y Kotov, E. A Kravchenko, V. F Kulikov, G. Y Kurkin, E. A Kuper, E. B Levichev, D. A Maksimov, V. M Malyshev, A. L Maslennikov, A. S Medvedko, O. I Meshkov, S. I Mishnev, I. I Morozov, N. Y Muchnoi, V. V Neufeld, S. A Nikitin, I. B Nikolaev, I. N Okunev, A. P Onuchin, S. B Oreshkin, I. O Orlov, A. A Osipov, S. V Peleganchuk, S. G Pivovarov, P. A Piminov, V. V Petrov, A. O Poluektov, I. N Popkov, V. G Prisekin, O. L Rezanova, A. A Ruban, V. K Sandyrev, G. A Savinov, A. G Shamov, D. N Shatilov, B. A Shwartz, E. A Simonov, S. V Sinyatkin, Y. I Skovpen, A. N Skrinsky, V. V Smaluk, A. V Sokolov, A. M Sukharev, E. V Starostina, A. A Talyshev, V. A Tayursky, V. I Telnov, Y. A Tikhonov, K. Y Todyshev, G. M Tumaikin, Y. V Usov, A. I Vorobiov, A. N Yushkov, V. N Zhilich, V. V Zhulanov, A. N Zhuravlev
المصدر: Journal of High Energy Physics, Vol 2018, Iss 5, Pp 1-23 (2018)
بيانات النشر: SpringerOpen, 2018.
سنة النشر: 2018
المجموعة: LCC:Nuclear and particle physics. Atomic energy. Radioactivity
مصطلحات موضوعية: e+-e- Experiments, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
الوصف: Abstract The product of the electronic width of the J/ψ meson and the branching fractions of its decay to hadrons and electrons has been measured using the KEDR detector at the VEPP-4M e + e − collider. The obtained values are ΓeeJ/ψ=5.550±0.056±0.089keV,ΓeeJ/ψ·ℬhadronsJ/ψ=4.884±0.048±0.078keV,ΓeeJ/ψ·ℬeeJ/ψ=0.3331±0.0066±0.0040keV. $$ \begin{array}{c}\hfill {\Gamma}_{ee}\left(J/\psi \right)=5.550\pm 0.056\pm 0.089\kern0.5em \mathrm{keV},\hfill \\ {}\hfill {\Gamma}_{ee}\left(J/\psi \right)\cdotp {\mathrm{\mathcal{B}}}_{\mathrm{hadrons}}\left(J/\psi \right)=4.884\pm 0.048\pm 0.078\kern0.5em \mathrm{keV},\hfill \\ {}\hfill {\Gamma}_{ee}\left(J/\psi \right)\cdotp {\mathrm{\mathcal{B}}}_{ee}\left(J/\psi \right)=0.3331\pm 0.0066\pm 0.0040\kern0.5em \mathrm{keV}.\hfill \end{array} $$ The uncertainties shown are statistical and systematic, respectively. Using the result presented and the world-average value of the electronic branching fraction, one obtains the total width of the J/ψ meson: Γ=92.94±1.83keV. $$ \Gamma =92.94\pm 1.83\kern0.5em \mathrm{keV}. $$ These results are consistent with the previous experiments.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1029-8479
Relation: http://link.springer.com/article/10.1007/JHEP05(2018)119; https://doaj.org/toc/1029-8479
DOI: 10.1007/JHEP05(2018)119
URL الوصول: https://doaj.org/article/590db002ff2d48d0abaa064151f83d08
رقم الأكسشن: edsdoj.590db002ff2d48d0abaa064151f83d08
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:10298479
DOI:10.1007/JHEP05(2018)119