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Study of D 0 − \( \bar D \) 0 mixing at a giga-Z linear collider

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Abstract

The possibility of studying D 0 − \( \bar D^0 \) 0 mixing at a giga-Z linear collider “Z factory” where 109 hadronic Z 0 decays can be accumulated is examined. We discuss the sensitivity for the measurements of neutral D mixing parameters. These results are compared to those attainable at B factories. We find that the typical decay length of the neutral D mesons at Z factory is about 10 times larger than that at B factory. In addition, the resolution of the vertex detector of a giga-Z factory is 2–3 times better than that of B factory. The proper time resolution at Z factory is about 20–30 times better than that at B factory. Therefore the determination of the mixing parameters at a giga-Z factory is more precise.

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Authors and Affiliations

  1. Institute of High Energy Physics, P.O.Box 918, Beijing, 100049, China

    HaiBo Li

  2. School of Physics, Nankai University, Tianjin, 300071, China

    MaoZhi Yang

Authors
  1. HaiBo Li
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  2. MaoZhi Yang
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Correspondence to HaiBo Li or MaoZhi Yang.

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Li, H., Yang, M. Study of D 0 − \( \bar D \) 0 mixing at a giga-Z linear collider. Sci. China Phys. Mech. Astron. 53, 1953–1956 (2010). https://doi.org/10.1007/s11433-010-4155-2

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  • DOI: https://doi.org/10.1007/s11433-010-4155-2

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