A Time-of-Flight detector in CDF-II

Study of orbitally excitedBmesons and evidence for a newBπresonance

“…Outside the tracking detectors, time-of-flight detectors, and calorimeters, muons are detected in planes of drift tubes and scintillators [28]. Charged-particle identification information is obtained from the ionization energy deposition in the drift chamber and the measurement of the flight time of particles [29,30].…”

Measurements of the properties ofΛc(2595),Λc(2625),Aaltonen1, González2, Amerio3 et al. 2011Phys. Rev. DSelf Cite560320View full textAdd to dashboardCite

“…The remainder of the tracking volume from a radius of 40 to 137 cm is occupied by an open-cell drift chamber (COT) [30], providing a transverse momentum resolution of σ(p T )/p 2 T ≈ 0.1%/(GeV/c). Hadron identification, which is crucial for distinguishing slow kaons and protons from pions, is achieved by a likelihood combination of information from a time-of-flight system (TOF) [31] and ionization energy loss in the COT. This offers about 1.5σ separation between kaons, or protons, and pions.…”

Evidence of Dopant Type-Inversion and Other Radiation Damage Effects of the CDF Silicon Detectors

“…Just outside the tracking system, CDF II has a Time of Flight (TOF) detector [7]. It is a barrel of scintillator almost 3 m long located at 140 cm from the beam line with a total of 216 bars, each covering 1.7 o in φ and pseudorapidity range |η| < 1.…”

“…Charge pions were used to obtain the energy e + e − production of high-energy photons. The average energy loss due to bremsstrahlung for an electron of energy E is related to the radiation length by dE dx brems = − E X 0 and the probability for an electron pair to be created by a high-energy photon is 7 9 X 0 . 5 An interaction length is the average distance a particle will travel before interacting with a nucleus: λ = A ρσN A , where A is the atomic weight, ρ is the material density, σ is the cross section and N A is the Avogadro's number.…”