Actions for Measurement of Particle Production and Inclusive Differential Cross Sections in p anti-p Collisions at s**(1

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Measurement of Particle Production and Inclusive Differential Cross Sections in p anti-p Collisions at s**(1/2) = 1.96-TeV [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
21 pages : digital, PDF file
Additional Creators
Fermi National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We report a set of measurements of particle production in inelastic p{bar p} collisions collected with a minimum-bias trigger at the Tevatron Collider with the CDF II experiment. The inclusive charged particle transverse momentum differential cross section is measured, with improved precision, over a range about ten times wider than in previous measurements. The former modeling of the spectrum appears to be incompatible with the high particle momenta observed. The dependence of the charged particle transverse momentum on the event particle multiplicity is analyzed to study the various components of hadron interactions. This is one of the observable variables most poorly reproduced by the available Monte Carlo generators. A first measurement of the event transverse energy sum differential cross section is also reported. A comparison with a PYTHIA prediction at the hadron level is performed. The inclusive charged particle differential production cross section is fairly well reproduced only in the transverse momentum range available from previous measurements. At higher momentum the agreement is poor. The transverse energy sum is poorly reproduced over the whole spectrum. The dependence of the charged particle transverse momentum on the particle multiplicity needs the introduction of more sophisticated particle production mechanisms, such as multiple parton interactions, in order to be better explained.
Report Numbers
E 1.99:fermilab-pub-09-098-e
fermilab-pub-09-098-e
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Note
Published through SciTech Connect.
04/01/2009.
"fermilab-pub-09-098-e"
"arXiv eprint number arXiv:0904.1098"
Phys.Rev.D79:112005,2009 FT
Aaltonen, T.; Alvarez Gonzalez, B.; Amerio, S.; Anastassov, A.; Apollinari, G.; Apresyan, A.; Akimoto, T.; Annovi, Alberto; Adelman, Jahred A.; Amidei, Dante E.; Antos, Jaroslav.
Funding Information
AC02-07CH11359
View MARC record | catkey: 14709536