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Dive into the research topics where J. Berryhill is active.

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Featured researches published by J. Berryhill.


Physical Review Letters | 1996

Measurement of Dijet Angular Distributions by the Collider Detector at Fermilab.

F. Abe; H. Akimoto; A. Akopian; M. Albrow; Amendolia; D. Amidei; J. Antos; C. Anway-Wiese; S. Aota; Giorgio Apollinari; T. Arisawa; T. Asakawa; W. Ashmanskas; M. Atac; F. Azfar; P. Azzi-Bacchetta; N. Bacchetta; W. Badgett; S. Bagdasarov; M. W. Bailey; J. Bao; de Barbaro P; A. Barbaro-Galtieri; V. E. Barnes; B. A. Barnett; E. Barzi; G. Bauer; T. Baumann; F. Bedeschi; S. Behrends

We have used 106 pb^-1 of data collected in proton-antiproton collisions at sqrt(s)=1.8 TeV by the Collider Detector at Fermilab to measure jet angular distributions in events with two jets in the final state. The angular distributions agree with next to leading order (NLO) predictions of Quantum Chromodynamics (QCD) in all dijet invariant mass regions. The data exclude at 95% confidence level (CL) a model of quark substructure in which only up and down quarks are composite and the contact interaction scale is Lambda_ud(+)<1.6 TeV or Lambda_ud(-)<1.4 TeV. For a model in which all quarks are composite the excluded regions are Lambda(+)<1.8 TeV and Lambda(-)<1. 6 TeV.


Physical Review D | 2002

Measurement of the B+ total cross section and B+ differential cross section d sigma/dp(T) in p(p)over-bar collisions at root s=1.8 TeV

Darin Acosta; T. Affolder; H. Akimoto; M. Albrow; P. Amaral; D. Ambrose; D. Amidei; K. Anikeev; J. Antos; G. Apollinari; T. Arisawa; A. Artikov; T. Asakawa; W. Ashmanskas; F. Azfar; P. Azzi-Bacchetta; N. Bacchetta; H. Bachacou; S. Bailey; P. De Barbara; A. Barbaro-Galtieri; V. E. Barnes; Bruce Barnett; S. Baroiant; M. Barone; G. Bauer; F. Bedeschi; S. Belforte; W. H. Bell; G. Bellettini

We present measurements of the B+ meson total cross section and differential cross section


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1998

SVT: an online silicon vertex tracker for the CDF upgrade

A. Bardi; S. Belforte; J. Berryhill; A. Cerri; A. G. Clark; R. Culbertson; M. Dell'Orso; S. Donati; J. Dusatko; Henry J. Frisch; S. Galeotti; P. Giannetti; A. Leger; E. Meschi; F. Morsani; T. Nakaya; G. Punzi; L. Ristori; H. Sanders; Mel Shochet; T. Speer; F. Spinella; P. Wilson; X. Wu; A. Zanetti

d\sigma/ dp_T


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2000

Silicon vertex tracker: a fast precise tracking trigger for CDF

W. Ashmanskas; A. Bardi; M. Bari; S. Belforte; J. Berryhill; Mircea Bogdan; A. Cerri; A. Clark; G. Chlanchidze; R. Condorelli; R. Culbertson; M. Dell'Orso; S. Donati; Henry J. Frisch; S. Galeotti; P. Giannetti; V. Glagolev; A. Leger; E. Meschi; F. Morsani; T. Nakaya; G. Punzi; L. Ristori; H. Sanders; A. Semenov; G. Signorelli; M. Shochet; T. Speer; F. Spinella; P. Wilson

. The measurements use a


ieee nuclear science symposium | 2001

Performance of the CDF online silicon vertex tracker

W. Ashmanskas; A. Barchiesi; A. Bardi; M. Bari; M. Baumgart; S. Belforte; A. Belloni; J. Berryhill; Mircea Bogdan; R. Carosi; A. Cerri; G. Chlachidze; R. Culberston; M. Dell'Orso; S. Donati; I. Fiori; Henry J. Frisch; S. Galeotti; P. Giannetti; V. Glagolev; Yanwen Liu; E. Meschi; L. Moneta; F. Morsani; T. Nakaya; D. Passuello; G. Punzi; A. Rescigno; L. Ristori; H. Sanders

98\pm 4


Physical Review D | 2002

Measurement of the ratio of b quark production cross sections in p̄p collisions at √s = 630 GeV and √s = 1800 GeV

Darin Acosta; T. Affolder; H. Akimoto; M. Albrow; D. Ambrose; D. Amidei; K. Anikeev; J. Antos; G. Apollinari; T. Arisawa; A. Artikov; T. Asakawa; W. Ashmanskas; F. Azfar; P. Azzi-Bacchetta; N. Bacchetta; H. Bachacou; W. Badgett; S. Bailey; P. De Barbara; A. Barbaro-Galtieri; V. E. Barnes; B. A. Barnett; S. Baroiant; M. Barone; G. Bauer; F. Bedeschi; S. Belforte; W. H. Bell; G. Bellettini

pb^{-1} sample of


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2002

The CDF online silicon vertex tracker

W. Ashmanskas; A. Bardi; M. Bari; S. Belforte; J. Berryhill; Mircea Bogdan; R. Carosi; A. Cerri; G. Chlachidze; R. Culbertson; M. Dell’Orso; S. Donati; I. Fiori; Henry J. Frisch; S. Galeotti; P. Giannetti; V. Glagolev; L. Moneta; F. Morsani; T. Nakaya; D Passuello; G. Punzi; M. Rescigno; L. Ristori; H. Sanders; Subir Sarkar; A. Semenov; Melvyn J. Shochet; T. Speer; F. Spinella

p \bar p


Physical Review D | 2004

Measurement of the average time-integrated mixing probability of b-flavored hadrons produced at the Fermilab Tevatron

Darin Acosta; T. Affolder; H. Akimoto; M. Albrow; D. Ambrose; D. Amidei; K. Anikeev; J. Antos; G. Apollinari; T. Arisawa; A. Artikov; T. Asakawa; W. Ashmanskas; F. Azfar; P. Azzi-Bacchetta; N. Bacchetta; H. Bachacou; W. Badgett; S. Bailey; P. de Barbaro; A. Barbaro-Galtieri; V. E. Barnes; Bruce Barnett; S. Baroiant; M. Barone; G. Bauer; F. Bedeschi; S. Behari; S. Belforte; W. H. Bell

collisions at


Nuovo Cimento Della Societa Italiana Di Fisica A-nuclei Particles and Fields | 1999

The CDF Silicon Vertex Tracker: Online precision tracking of the CDF Silicon Vertex Detector

W. Ashmanskas; A. Bardi; M. Bari; S. Belforte; J. Berryhill; Mircea Bogdan; A. Cerri; A. G. Clark; G. Chlachidze; R. Condorelli; R. Culbertson; M. Dell’Orso; S. Donati; Henry J. Frisch; S. Galeotti; P. Giannetti; V. Glagolev; A. Leger; E. Meschi; F. Morsani; T. Nakaya; G. Punzi; L. Ristori; H. Sanders; A. Semenov; G. Signorelli; M. Shochet; T. Speer; F. Spinella; P. Wilson

\sqrt{s}=1.8


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2003

Initial experience with the CDF SVT trigger

Bill Ashmanskas; A. Barchiesi; A. Bardi; M. Bari; M. Baumgart; Stefano Belforte; J. Berryhill; Mircea Bogdan; R. Carosi; A. Cerri; G. Chlachidze; R. Culberston; M. Dell'Orso; S. Donati; I. Fiori; Henry J. Frisch; S. Galeotti; P. Giannetti; V. Glagolev; A. Leger; Yanwen Liu; E. Meschi; L. Moneta; F. Morsani; T. Nakaya; G. Punzi; M. Rescigno; L. Ristori; H. Sanders; Subir Sarkar

TeV collected by the CDF detector. Charged

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A. Barbaro-Galtieri

Lawrence Berkeley National Laboratory

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D. Amidei

University of Michigan

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G. Bauer

Massachusetts Institute of Technology

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