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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2008, Volume 88, Issue 2, Pages 93–98
(Mi jetpl166)
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This article is cited in 1 scientific paper (total in 1 paper)
FIELDS, PARTICLES, AND NUCLEI
Search for the ϕ → π+π−γγ and ϕ → π+π−η decays with the CMD-2 detector
V. M. Aul'chenkoab, R. R. Akhmetshinb, V. Sh. Banzarovb, L. M. Barkovab, N. S. Bashtovoib, A. E. Bondarb, A. V. Braginb, A. A. Grebenyukb, D. N. Grigor'evcab, D. A. Epifanovb, A. S. Zaitsevab, F. V. Ignatovb, V. F. Kazaninab, S. V. Karpovb, I. A. Koopab, P. P. Krokovnyab, A. S. Kuz'minab, I. B. Logashenkobd, P. A. Lukinb, K. Yu. Mikhailovb, I. N. Nesterenkoab, A. V. Otboevb, V. S. Okhapkinb, E. A. Perevedentsevab, A. S. Popovb, S. I. Redinb, A. A. Rubanb, N. M. Ryskulovb, A. L. Sibidanovb, V. P. Smakhtine, I. G. Snopkovb, E. P. Solodovab, G. V. Fedotovichab, B. I. Khazinab, Yu. M. Shatunovb, B. A. Shvartsab, S. I. Èidel'manab, Yu. V. Yudinb a Novosibirsk State University, ul. Pirogova 2, Novosibirsk, 630090, Russia
b Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 11, Novosibirsk, 630090, Russia
c Novosibirsk State Technical University, Novosibirsk, 630092, Russia
d Boston University, Boston, MA 02215, USA
e Weizmann Institute of Science, 76100, Rehovot, Israel
Abstract:
The ϕ → π+π−γγ and ϕ → π+π−η decays are sought in the experimental data obtained with the CMD-2 detector in the region of the ϕ-meson resonance. Upper limits ℛ(ϕ → ππγγ)< 1.2 × 10−4 and ℛ(ϕ → ππη) < 6.1 × 10−5 (both at a C.L. of 90%) are determined for the branching ratios of these decays.
Received: 17.06.2008
Citation:
V. M. Aul'chenko, R. R. Akhmetshin, V. Sh. Banzarov, L. M. Barkov, N. S. Bashtovoi, A. E. Bondar, A. V. Bragin, A. A. Grebenyuk, D. N. Grigor'ev, D. A. Epifanov, A. S. Zaitsev, F. V. Ignatov, V. F. Kazanin, S. V. Karpov, I. A. Koop, P. P. Krokovny, A. S. Kuz'min, I. B. Logashenko, P. A. Lukin, K. Yu. Mikhailov, I. N. Nesterenko, A. V. Otboev, V. S. Okhapkin, E. A. Perevedentsev, A. S. Popov, S. I. Redin, A. A. Ruban, N. M. Ryskulov, A. L. Sibidanov, V. P. Smakhtin, I. G. Snopkov, E. P. Solodov, G. V. Fedotovich, B. I. Khazin, Yu. M. Shatunov, B. A. Shvarts, S. I. Èidel'man, Yu. V. Yudin, “Search for the ϕ → π+π−γγ and ϕ → π+π−η decays with the CMD-2 detector”, Pis'ma v Zh. Èksper. Teoret. Fiz., 88:2 (2008), 93–98; JETP Letters, 88:2 (2008), 85–90
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https://www.mathnet.ru/eng/jetpl166 https://www.mathnet.ru/eng/jetpl/v88/i2/p93
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Abstract page: | 292 | Full-text PDF : | 90 | References: | 73 |
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