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Fragmentation Properties of Jets Produced in Proton-antiproton Collisions at Radical S

1989
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Release : 1989
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Book Synopsis Fragmentation Properties of Jets Produced in Proton-antiproton Collisions at Radical S by :

Download or read book Fragmentation Properties of Jets Produced in Proton-antiproton Collisions at Radical S written by . This book was released on 1989. Available in PDF, EPUB and Kindle. Book excerpt: Jet fragmentation properties have been studied in collisions of protons and antiprotons at a center-of-mass energy of 1.8 TeV, using the Collider Detector at Fermilab (CDF). The fractional momentum distribution of charged particles within jets is presented and compared with Monte-Carlo predictions. With increasing di-jet invariant mass from 60 to 200 GeV/c2 the fragmentation is observed to soften as predicted by scale breaking effects in Quantum Chromodynamics (QCD). The charged multiplicity in the jet core is observed to rise with di-jet invariant mass. 57 refs.

Fragmentation of Jets Produced in Proton-Antiproton Collisions at $\sqrt{s}

2007
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Release : 2007
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Book Synopsis Fragmentation of Jets Produced in Proton-Antiproton Collisions at $\sqrt{s} by :

Download or read book Fragmentation of Jets Produced in Proton-Antiproton Collisions at $\sqrt{s} written by . This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt: We present the first measurement of two-particle momentum correlations in jets produced in p$\bar{p}$ collisions at center of mass energy of 1.96 TeV. A comparison of the experimental data to theoretical predictions obtained for partons within the framework of resummed perturbative QCD (Next-to-Leading Log Approximation) shows that the predicted parton momentum correlations survive the hadronization stage of jet fragmentation and are present at the hadron level. We also present the measurement of the intrinsic transverse momenta of particles with respect to jet axis (kT). Experimental data is compared to the theoretical predictions obtained for partons within the framework of Modified Leading Log Approximation and Next-to-Modified Leading Log Approximation, and shows good agreement in the range of validity of the theoretical predictions. The results of both measurements indicate that the perturbative stage of the jet formation must be dominant and give further support to the hypothesis of Local Parton-Hadron Duality.

Fragmentation of Jets Produced in Proton-antiproton Collisions at [center of Mass Energy]

2007
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Release : 2007
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Book Synopsis Fragmentation of Jets Produced in Proton-antiproton Collisions at [center of Mass Energy] by : Sergo R. Jindariani

Download or read book Fragmentation of Jets Produced in Proton-antiproton Collisions at [center of Mass Energy] written by Sergo R. Jindariani. This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: We present the first measurement of two-particle momentum correlations in jets produced in proton-antiproton collisions at center of mass energy of 1.96 TeV. A comparison of the experimental data to theoretical predictions obtained for partons within the framework of resummed perturbative QCD (Next-to-Leading Log Approximation) shows that the predicted parton momentum correlations survive the hadronization stage of jet fragmentation and are present at the hadron level. We also present the measurement of the intrinsic transverse momenta of particles with respect to jet axis (k [subscript T]). Experimental data is compared to the theoretical predictions obtained for partons within the framework of Modified Leading Log Approximation and Next-to-Modified Leading Log Approximation, and shows good agreement in the range of validity of the theoretical predictions. The results of both measurements indicate that the perturbative stage of the jet formation must be dominant and give further support to the hypothesis of Local Parton-Hadron Duality.

Fragmentation Properties of Jets Produced in Pp Collisions at [square Root Sign] S

1989
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Release : 1989
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Book Synopsis Fragmentation Properties of Jets Produced in Pp Collisions at [square Root Sign] S by : Bradley Hubbard

Download or read book Fragmentation Properties of Jets Produced in Pp Collisions at [square Root Sign] S written by Bradley Hubbard. This book was released on 1989. Available in PDF, EPUB and Kindle. Book excerpt:

Fragmentation of Quark and Gluon Jets in Proton-antiproton Collisions at Center-of-mass Energy of 1.8 TeV

2005
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Release : 2005
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Book Synopsis Fragmentation of Quark and Gluon Jets in Proton-antiproton Collisions at Center-of-mass Energy of 1.8 TeV by : Alexandre P. Pronko

Download or read book Fragmentation of Quark and Gluon Jets in Proton-antiproton Collisions at Center-of-mass Energy of 1.8 TeV written by Alexandre P. Pronko. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: We report the first model independent measurement of charged particle multiplicities in quark and gluon jets, Nq_ and Ng_, produced at the Tevatron in proton-antiproton collisions with center-of-mass energy 1.8 TeV and recorded by the Collider Detector at Fermilab. The measurements are made for jets with average energies 41 and 53 GeV by counting charged particle tracks in cones with opening angle of thetac_=0.28, 0.36, and 0.47 rad around the jet axis. The corresponding jet hardness Q=Ej_et*thetac_ varies in the range from 12 GeV to 25 GeV. At Q=19.2 GeV, the ratio of multiplicities r=Ng_/Nq_ is found to be 1.64"0.17, where statistical and systematic uncertainties are added in quadrature. The results are in agreement with re-summed perturbative QCD calculations and are consistent with recent ee− measurements.

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