K0 ⇋ K̄0 transitions monitored by strong interactions: A new determination of the KL-KS mass difference

Authors :: Angelopoulos, A. Aslanides, E. Backenstoss, G. Bargassa, P. Behnke, O. Benelli, A. Bertin, V. Blanc, F. Bloch, P. Carlson, P. Carroll, M. Cawley, E. Chertok, M.B. Danielsson, M. Dejardin, M. Derre, J. Ealet, A. Eleftheriadis, C. Fetscher, W. Fidecaro, M. Filipčič, A. Francis, D. Fry, J. Gabathuler, E. Gamet, R. Gerber, H.-J. Go, A. Haselden, A. Hayman, P.J. Henry-Couannier, F. Hollander, R.W. Jon-And, K. Kettle, P.-R. Kokkas, P. Kreuger, R. Le Gac, R. Leimgruber, F. Mandi, I. Manthos, N. Marel, G. Mikuž, M. Miller, J. Montanet, F. Muller, A. Nakada, T. Pagels, B. Papadopoulos, I. Pavlopoulos, P. Polivka, G. Rickenbach, R. Roberts, B.L. Ruf, T. Sakeliou, L. Schäfer, M. Schaller, L.A. Schietinger, T. Schopper, A. Tauscher, L. Thibault, C. Touchard, F. Touramanis, C. Van Eijk, C.W.E. Vlachos, S. Weber, P. Wigger, O. Wolter, M. Zavrtanik, D. Zimmerman, D.
Publication Year :: 2001
Abstract: The CPLEAR set-up (modified) has been used to determine the KL-KS mass difference by a method where neutral-kaon strangeness oscillations are monitored through kaon strong interactions, rather than semileptonic decays, thus requiring no assumptions on CPT invariance for the decay amplitudes. The result, Δm = (0.5343 ± 0.0063stat ± 0.0025syst) × 1010h/s, provides a valuable input for CPT tests. © 2001 Published by Elsevier Science B.V.

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