Author/Authors :
Paus، نويسنده , , Ch. and Grozis، نويسنده , , C. and Kephart، نويسنده , , Sandeep R. and Stanek، نويسنده , , R. and Kim، نويسنده , , B. and Kim، نويسنده , , D.H. and Kim، نويسنده , , S.B. and Oh، نويسنده , , Y. and Yu، نويسنده , , I. and Carithers، نويسنده , , W. and Kim، نويسنده , , Y.K. and Anikeev، نويسنده , , K. and Bauer، نويسنده , , G. and Furi?، نويسنده , , I.K. and Korn، نويسنده , , A. and Kravchenko، نويسنده , , I. and Mulhearn، نويسنده , , M. and Pavlon، نويسنده ,
Abstract :
The CDF II detector contains a time-of-flight detector consisting of 216 scintillator bars of 279 cm length and 4×4 cm2 cross-section located at a radius of 138 cm from the beam axis. The bars are installed on the inner surface of the CDF solenoid, which produces an axial field of 1.4 T. Nineteen-stage fine-mesh photomultiplier tubes are attached at both ends of the scintillator bars. Photostatistics limit the time-of-flight resolution, which is expected to be 100 ps. The primary physics motivation is K± identification for improved neutral B meson flavor determination.
