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Book Measurement of Continuum Dimuon Production in 800 GeV C Proton Nucleon Collisions

Download or read book Measurement of Continuum Dimuon Production in 800 GeV C Proton Nucleon Collisions written by and published by . This book was released on 2003 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fermilab Experiment 866 has performed an absolute measurement of continuum dimuon (Drell-Yan) cross sections in 800-GeV/c pp and pd interactions. Results differential in the mass, Feynman-x (xF) and transverse momenta (pT) of the dimuon pairs are reported. These results represent the most extensive study of the Drell-Yan process to date, based on a data sample of 175,000 dimuon events covering the widest range in kinematics yet achieved (4.2d"M d"16.85 GeV and -0.05 d"xF d"0.8) with this level of precision. The cross sections are primarily sensitive to the magnitude and shape of the light antiquark distributions ($\bar{d}$(x) and $\bar{u}$(x)) in the nucleon, but also provide important information on the valence quarks as well as the gluons. They are in good agreement with other existing proton-induced Drell-Yan experiments. There is also general agreement between the data and next-to-leading-order calculations based on various sets of parton distribution functions. Differences between data and theory are examined, and the potential impact of these data on future parameterizations of the parton distributions are be discussed.

Book Dimuon Production in Proton Nucleon Collisions at 300 GeV c

Download or read book Dimuon Production in Proton Nucleon Collisions at 300 GeV c written by and published by . This book was released on 1975 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book D MESON PRODUCTION IN 800 GEV C PROTON PROTON COLLISIONS

Download or read book D MESON PRODUCTION IN 800 GEV C PROTON PROTON COLLISIONS written by MICHAEL F. WEBER and published by . This book was released on 1988 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: (GeV/c)$\sp{-2}$ for $x\sb{F}$ $\geq$ 0. We compare our results to measurements made at lower energies and to the predictions of perturbative QCD and find that our results are consistent with lowest order QCD predictions assuming $m\sb{c}$ $\approx$ 1.2-1.4 GeV/c$\sp2$ and with next-to-leading order predictions assuming $m\sb{c}$ $\approx$ 1.5 GeV/c$\sp2$.

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Charged and Neutral Particle Production from 400 GeV c Proton Proton Collisions

Download or read book Charged and Neutral Particle Production from 400 GeV c Proton Proton Collisions written by Richard Kass and published by . This book was released on 1978 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dimuon Production in Proton antiproton Collisions at square Root of S

Download or read book Dimuon Production in Proton antiproton Collisions at square Root of S written by Gerry Bauer and published by . This book was released on 1986 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Nuclear Medium Effects on Quarks Gluons and on Vector Meson Production

Download or read book Nuclear Medium Effects on Quarks Gluons and on Vector Meson Production written by and published by . This book was released on 1990 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Proton and Produced Particle Distributions from Au Au Collisions at 11 6 A GeV c

Download or read book Proton and Produced Particle Distributions from Au Au Collisions at 11 6 A GeV c written by and published by . This book was released on 1994 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highest net baryon density possible in the laboratory--up to ten times normal nuclear density--is expected in the central region of collisions of heavy nuclei (A ≈ 200) at energies near 10 GeV per nucleon. The transverse energy (E{sub T}) distribution, as well as yields of identified particles (?, K+ and protons), from 197Au + 197Au at 11.64A GeV/c are presented. Two key observations are a large degree of proton s̀̀topping, ̀̀indicating multiple scatterings of the incident nucleons, and a proportional relationship of the pion production to the number of participating nucleons. Strangeness enhancement, a proposed signature of the quark-gluon plasma, is studied via the K+/?+ ratio, which achieves the value of 21% without a strong centrality dependence. Comparisons to similar data taken with a 14.6A GeV/c beam of 28Si are made.