E. Erdos
University of Colorado Boulder
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Featured researches published by E. Erdos.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1992
P.L. Frabetti; V. Giordano; G. Molinari; C.W. Bogart; H.W.K. Cheung; P. Coteus; S. Culy; Jp Cumalat; C. Dallapiccola; E. Erdos; J. F. Ginkel; William E. Johns; G. Schultz; J. N. Butler; S. Cihangir; A. Cotta-Ramusino; R. Currier; F. Davenport; I. Gaines; P. H. Garbincius; S. A. Gourlay; D.J. Harding; Sten Hansen; R. Justice; K. Kephart; P. Kasper; A. Kreymer; P. Lebrum; S. Shukla; S. Bianco
Abstract The magnetic spectrometer and charged particle tracking system used in Fermilab experiment 687 to study the photoproduction and decay of charm particles are described in detail. The photons are produced by a wideband electron beam which can operate at energies up to 600 GeV/ c . The spectrometer consists of a high resolution silicon microstrip detector, a large aperture dipole magnet, proportional chambers, a second large aperture dipole, and more proportional chambers. Three multi-cell threshold Cherenkov counters provide charged particle identification. The tracking system is capable of resolving the secondary decay vertices of charm and beauty mesons and baryons from the primary interaction vertex. It also determines the invariant mass of the multibody final states of particles containing heavy quarks with excellent resolution. The particle identification system allows one to identify kaons and protons present in these final states clearly. This collection of detectors produces very clean signals for charm particles and permits one to make many cross checks of the apparatus. The performance is illustrated for a variety of charm signals. Of particular interest is a description of the tracking through the silicon microstrip detector and its use in isolating downstream decay vertices. Two complementary approaches to the reconstruction of secondary decay vertices are presented and insight is gained by comparing their strengths and weaknesses.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1996
Y. Arai; J.G. Arnold; J.W. Barkell; B. Bevensee; B. Broomer; J. Chapman; M. Chiba; T. Collins; M. Corden; D. Craig; D.M. Davis; N. Dressnandt; A. Dunn; William L. Dunn; T. Ekenberg; M.S. Emery; T. Emura; E. Erdos; W. T. Ford; T. A. Gabriel; A. T. Goshaw; S. V. Greene; M. van Haaren; D.T. Hackworth; R. Hamatsu; G. Hanson; T. Hirose; M. Ikeno; Q.P. Jia; D. R. Johnson
Abstract We have developed the baseline design for a straw drift tube tracking system for the Solenoidal Detector Collaboration (SDC) detector. The system was designed to operate in the high-rate environment of a high luminosity hadron collider. We present an overview of the tracking system and the requirements it was expected to fulfill. We describe the construction and properties of the straw drift tubes. We discuss the design of the carbon-fiber foam-laminate shell, which supported the wire tension and held the straws in alignment. We also present descriptions of the designs of the front-end and digitization electronics as well as the electronics associated with the level 1 track trigger.
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1998
A. Boucham; I. De Bonis; A. Jeremie; Y. Karyotakis; R. Lafaye; C. Goodenough; C. Hearty; J. Heise; M. Kelsey; J. A. McKenna; D.E. Dorfan; J. Fernandez; H. F.-W. Sadrozinski; B. A. Schumm; N. Spencer; J. L. Harton; R. Malchow; M.B. Smy; D. Warner; B. Broomer; E. Erdos; W. T. Ford; A. Gritsan; D. R. Johnson; H. Krieg; J. Roy; Harold S. Park; P. Rankin; J. G. Smith; A. Gaddi
The BaBar Drift Chamber is now under construction. We review its design, the progress in the construction of the components, the plan for assembly and stringing and we present test results obtained with a prototype exposed at SLAC to cosmic rays. We also report on projected dE/dx performance from beam tests done with a chamber with a different cell design.
Prepared for | 1998
A. Boucham; D. Pitman; D. G. Fong; R. K. Yamamoto; G. Sciolla; D. Britton; E. Erdos; M. Momayezi; D. Warner; R. Malchow; A. Gaddi; B. Broomer; A. V. Gritsan; P. Taras; H. Park; M. Morandin; S. Santi; E. Lamanna; H. Krieg; I. De Bonis; Abolhassan Jawahery; C. Voci; R. Bard; W. Miller; S. Morganti; F. Raffaelli; F. Ferroni; A. J. S. Smith; M.B. Smy; M. Houde
The BaBar Drift Chamber is now under construction. We review its design, the progress in the construction of the components, the plan for assembly and stringing and we present test results obtained with a prototype exposed at SLAC to cosmic rays. We also report on projected dE/dx performance from beam tests done with a chamber with a different cell design.
Physical Review Letters | 1994
K. Abe; I. Abt; W.W. Ash; D. Aston; N. Bacchetta; K.G. Baird; C. Baltay; H. R. Band; M.B. Barakat; G. Baranko; O. Bardon; R. Battiston; A.O. Bazarko; Andrew J. Bean; R.J. Belcinski; R. Ben-David; A. C. Benvenuti; M. Biasini; T. Bienz; G. M. Bilei; D. Bisello; G. Blaylock; J.R. Bogart; T. A. Bolton; G.R. Bower; Je Brau; M. Breidenbach; W. Bugg; D. L. Burke; T. H. Burnett
Using an impact parameter tag to select an enriched sample of
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