Measurement of the k(T) Distribution of Particles in Jets Produced in p anti-p Collisions at s**(1/2) = 1.96-TeV

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We present a measurement of the transverse momentum with respect to the jet axis (k{sub T}) of particles in jets produced in p{bar p} collisions at {radical}s = 1.96 TeV. Results are obtained for charged particles within a cone of opening angle 0.5 radians around the jet axis in events with dijet invariant masses between 66 and 737 GeV/c{sup 2}. The experimental data are compared to theoretical predictions obtained for fragmentation partons within the framework of resummed perturbative QCD using the modified leading log and next-to-modified leading log approximations. The comparison shows that trends in data are successfully described by ... continued below

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7 pages

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Aaltonen, T.; Phys., /Helsinki Inst. of; Adelman, J.; /Chicago U., EFI; Akimoto, T.; U., /Tsukuba et al. November 1, 2008.

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We present a measurement of the transverse momentum with respect to the jet axis (k{sub T}) of particles in jets produced in p{bar p} collisions at {radical}s = 1.96 TeV. Results are obtained for charged particles within a cone of opening angle 0.5 radians around the jet axis in events with dijet invariant masses between 66 and 737 GeV/c{sup 2}. The experimental data are compared to theoretical predictions obtained for fragmentation partons within the framework of resummed perturbative QCD using the modified leading log and next-to-modified leading log approximations. The comparison shows that trends in data are successfully described by the theoretical predictions, indicating that the perturbative QCD stage of jet fragmentation is dominant in shaping basic jet characteristics.

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7 pages

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  • Journal Name: Submitted to Phys.Rev.Lett.

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  • Report No.: FERMILAB-PUB-08-525-E
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 941752
  • Archival Resource Key: ark:/67531/metadc893794

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  • November 1, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 29, 2016, 7:44 p.m.

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Aaltonen, T.; Phys., /Helsinki Inst. of; Adelman, J.; /Chicago U., EFI; Akimoto, T.; U., /Tsukuba et al. Measurement of the k(T) Distribution of Particles in Jets Produced in p anti-p Collisions at s**(1/2) = 1.96-TeV, article, November 1, 2008; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc893794/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.