A barrel TOF for STAR at RHIC

作者:Wu J*; Xu M
来源:Journal of Physics G: Nuclear and Particle Physics , 2007, 34(8): S729-S732.
DOI:10.1088/0954-3899/34/8/S83

摘要

With the successful runs of the multi-gap resistive plate chamber (MRPC)-based time-of-flight (TOF) prototypes in the solenoid tracker at RHIC (relativistic heavy ion collider) (STAR) for the past several years, a full barrel TOF is being built to take part in data taking in late 2008. Together with other sub-detectors in STAR this TOF will greatly enhance the reach of the STAR scientific programme significantly by extending the particle identification (PID) capability. It will allow STAR to extract the maximum amount of information available from soft physics measures on an event-by-event basis. It will also extend its power to the heavy flavour sector by increasing the signal-to-noise ratios for charm hadron reconstructions for D-0, D+, D-s(+), J/psi, enabling STAR to make systematic studies of charm thermalization and charm meson flow. The physics results achieved by the TOF prototypes as well as the goal of the full TOF expectable are presented.

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