D. Ambrose | Researchain

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Featured researches published by D. Ambrose.

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2006

Determination of the jet energy scale at the collider detector at Fermilab

A. Bhatti; F. Canelli; B. Heinemann; J. Adelman; D. Ambrose; J.-F. Arguin; A. Barbaro-Galtieri; H. S. Budd; Y.S. Chung; K. Chung; Ben Cooper; C. Currat; M. D’Onofrio; T. Dorigo; R. Erbacher; R. D. Field; G. Flanagan; A. Gibson; K. Hatakeyama; F. Happacher; D. Hoffman; G. Introzzi; S. Kuhlmann; S. Kwang; S. Jun; G. Latino; A. Malkus; M. Mattson; A. Mehta; P.A. Movilla-Fernandez

Abstract A precise determination of the energy scale of jets at the Collider Detector at Fermilab at the Tevatron p p ¯ collider is described. Jets are used in many analyses to estimate the energies of partons resulting from the underlying physics process. Several correction factors are developed to estimate the original parton energy from the observed jet energy in the calorimeter. The jet energy response is compared between data and Monte Carlo simulation for various physics processes, and systematic uncertainties on the jet energy scale are determined. For jets with transverse momenta above 50xa0GeV the jet energy scale is determined with a 3 % systematic uncertainty.

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

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

dsigma/ dp_T

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

. The measurements use a

Physical Review Letters | 2005

Measurement of the W+W- production cross section in pp̄ collisions at s=1.96TeV using dilepton events

Darin Acosta; J. Adelman; T. Affolder; T. Akimoto; M. Albrow; D. Ambrose; S. Amerio; D. Amidei; A. Anastassov; K. Anikeev; A. Annovi; J. Antos; M. Aoki; G. Apollinari; T. Arisawa; J. F. Arguin; A. Artikov; W. Ashmanskas; A. Attal; F. Azfar; P. Azzi-Bacchetta; N. Bacchetta; H. Bachacou; W. Badgett; A. Barbaro-Galtieri; G. J. Barker; V. E. Barnes; B. A. Barnett; S. Baroiant; M. Barone

98pm 4

Physical Review D | 2003

Search for the flavor-changing neutral current decay D0→ μ+μ-in pp̄ collisions at √s = 1.96TeV

Darin Acosta; T. Affolder; M. H. Ahn; T. Akimoto; M. Albrow; D. Ambrose; D. Amidei; A. Anastassov; K. Anikeev; A. Annovi; J. Antos; M. Aoki; G. Apollinari; J. F. Arguin; T. Arisawa; A. Artikov; T. Asakawa; W. Ashmanskas; A. Attal; F. Azfar; P. Azzi-Bacchetta; N. Bacchetta; H. Bachacou; W. Badgett; S. Bailey; A. Barbaro-Galtieri; G. J. Barker; V. E. Barnes; B. A. Barnett; S. Baroiant

pb^{-1} sample of

Physical Review D | 2002

Comparison of the isolated direct photon cross sections in pp̄ collisions at √s = 1.8 TeV and √s = 0.63 TeV

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; B. A. Barnett; S. Baroiant; M. Barone; G. Bauer; F. Bedeschi; S. Belforte; W. H. Bell; G. Bellettini

p bar p

Physical Review Letters | 2005

Measurement of charged-particle multiplicities in gluon and quark jets in pp̄ collisions at s=1.8TeV

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

collisions at

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2004

CDF central outer tracker

T. Affolder; D. H. Allspach; D. Ambrose; J. Bialek; W. Bokhari; M. Brozovic; M. Binkley; K Burkett; A. Byon-Wagner; F. Cogswell; N. Dressnandt; Z Feng; M Franklin; L. Galtieri; D. W. Gerdes; J Greenwood; Victor Guarino; J. Guimaraes da Costa; R Haggerty; C. Hall; J. Heinrich; A Holloway; T Jacobi; K. Kephart; D. Khazins; Y. K. Kim; M. Kirby; W. Kononenko; Ashutosh Kotwal; J. Kraus

sqrt{s}=1.8

Physical Review D | 2003

Momentum distribution of charged particles in jets in dijet events in p(p)over-bar collisions at root s=1.8 TeV and comparisons to perturbative QCD predictions

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; Bruce Barnett; S. Baroiant; M. Barone; G. Bauer; F. Bedeschi; S. Behari; S. Belforte; W. H. Bell

TeV collected by the CDF detector. Charged

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