First observation of long-lived $\pi^+ \pi^-$ atoms

After observing and investigating the double-exotic $\pi^+\pi^-$ atom with the ground state lifetime $\tau$ of about $3 \times 10^{-15}$~s, the upgraded DIRAC experiment at the CERN PS accelerator observes for the first time long-lived states of the same atom with lifetimes of about $10^{-11}$~s and...

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Detalles Bibliográficos
Autores principales: Adeva, B, Afanasyev, L, Anania, A, Aogaki, S, Benelli, A, Brekhovskikh, V, Cechak, T, Chiba, M, Chliapnikov, P, Doskarova, P, Drijard, D, Dudarev, A, Duma, M, Dumitriu, D, Fluerasu, D, Gorin, A, Gorchakov, O, Gritsay, K, Guaraldo, C, Gugiu, M, Hansroul, M, Hons, Z, Horikawa, S, Iwashita, Y, Karpukhin, V, Kluson, J, Kobayashi, M, Kruglov, V, Kruglova, L, Kulikov, A, Kulish, E, Kuptsov, A, Lamberto, A, Lanaro, A, Lednicky, R, Marinas, C, Martincik, J, Nemenov, L, Nikitin, M, Okada, K, Olchevskii, V, Ovsiannikov, V, Pentia, M, Penzo, A, Plo, M, Prusa, P, Rappazzo, G, Romero Vidal, A, Ryazantsev, A, Rykalin, V, Saborido, J, Schacher, J, Sidorov, A, Smolik, J, Takeutchi, F, Tauscher, L, Trojek, T, Trusov, S, Urban, T, Vrba, T, Yazkov, V, Yoshimura, Y, Zhabitsky, M, Zrelov, P
Lenguaje:eng
Publicado: 2015
Materias:
Detectors and Experimental Techniques
Nuclear Physics - Experiment
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2015.09.060
http://cds.cern.ch/record/2045640

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