Measurement of the $��K$ atom lifetime and the $��K$ scattering length

Authors :: DIRAC Collaboration
Adeva, B.
Afanasyev, L.
Allkofer, Y.
Amsler, C.
Anania, A.
Aogaki, S.
Benelli, A.
Brekhovskikh, V.
Cechak, T.
Chiba, M.
Chliapnikov, P.
Drijard, D.
Dudarev, A.
Dumitriu, D.
Federicova, P.
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.
Pentia, M.
Penzo, A.
Plo, M.
Prusa, P.
Rappazzo, G.
Vidal, A. Romero
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.
Publication Year :: 2017
Publisher :: arXiv, 2017.
Abstract: After having announced the statistically significant observation (5.6~$��$) of the new exotic $��K$ atom, the DIRAC experiment at the CERN proton synchrotron presents the measurement of the corresponding atom lifetime, based on the full $��K$ data sample: $��= (5.5^{+5.0}_{-2.8}) \cdot 10^{-15}s$. By means of a precise relation ($<br />18 pages, 17 figures

Subjects :: High Energy Physics - Experiment (hep-ex)
FOS: Physical sciences
Nuclear Experiment (nucl-ex)

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