The production rates of the orbitally excited D-s** mesons, D-s1(+/-) and D-s2(*+/-), are measured with the 4.1 million hadronic Z decays recorded by the ALEPH detector during 1991-1995. The D-s** mesons are reconstructed in the decay modes D-s1(+) --> (D*+K0), D-s1(+) --> (DK+)-K-*0 and D-s2(*+) --> (DK+)-K-0. The production rate of the D-s1(+/-) is measured to be f (Z --> D-s1(+/-)) = (0.52 +/- 0.09 +/- 0.06)%, under the assumption that the two considered decay modes of the D-s1(+/-) saturate the branching ratio. The production rate of the D-s2(*+/-) is determined to be f (Z --> D-s2(*+/-)) = (0.83 +/- 0.29(-0.13)(+0.17))%, assuming that the branching fraction of the decay D-s2(*+) --> (DK+)-K-0 is 45%. The production rates in Z --> c (c) over bar and Z --> b (b) over bar decays are measured separately

Production of D-s(**) mesons in hadronic Z decays / Heister, A., Schael, S., Barate, R., De Bonis, I., Decamp, D., Goy, C., Lees, J.P., Merle, E., Minard, M.N., Pietrzyk, B., Boix, G., Bravo, S., Casado, M.P., Chmeissani, M., Crespo, J.M., Fernandez, E., Fernandez Bosman, M., Garrido, L., Graugés, E., Martinez, M., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 526:1-2(2002), pp. 34-49. [10.1016/S0370-2693(01)01465-4]

Production of D-s(**) mesons in hadronic Z decays

CREANZA, Donato Maria;IASELLI, Giuseppe;Maggi, Giorgio Pietro;
2002

Abstract

The production rates of the orbitally excited D-s** mesons, D-s1(+/-) and D-s2(*+/-), are measured with the 4.1 million hadronic Z decays recorded by the ALEPH detector during 1991-1995. The D-s** mesons are reconstructed in the decay modes D-s1(+) --> (D*+K0), D-s1(+) --> (DK+)-K-*0 and D-s2(*+) --> (DK+)-K-0. The production rate of the D-s1(+/-) is measured to be f (Z --> D-s1(+/-)) = (0.52 +/- 0.09 +/- 0.06)%, under the assumption that the two considered decay modes of the D-s1(+/-) saturate the branching ratio. The production rate of the D-s2(*+/-) is determined to be f (Z --> D-s2(*+/-)) = (0.83 +/- 0.29(-0.13)(+0.17))%, assuming that the branching fraction of the decay D-s2(*+) --> (DK+)-K-0 is 45%. The production rates in Z --> c (c) over bar and Z --> b (b) over bar decays are measured separately
2002
Production of D-s(**) mesons in hadronic Z decays / Heister, A., Schael, S., Barate, R., De Bonis, I., Decamp, D., Goy, C., Lees, J.P., Merle, E., Minard, M.N., Pietrzyk, B., Boix, G., Bravo, S., Casado, M.P., Chmeissani, M., Crespo, J.M., Fernandez, E., Fernandez Bosman, M., Garrido, L., Graugés, E., Martinez, M., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 526:1-2(2002), pp. 34-49. [10.1016/S0370-2693(01)01465-4]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/8402
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