Download or read book Production of Top Quark Pairs in Association with a Hard Gluon to Order Alpha 2 S written by Arnd Brandenburg and published by . This book was released on 1999 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production of Top Quark Pairs in Association with a Hard Gluon to Order alpha 2s alpha 2 S written by Arnd Brandenburg and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production of Top Quark Pairs in Association with a Hard Gluon to Order 2s alpha 2 S written by Arnd Brandenburg and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heavy Quark Pair Production in Gluon Fusion at Next to next to leading 4s omicron alpha 4 S Order written by and published by . This book was released on 2008 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book First Measurement of the Fraction of Top Quark Pair Production Through Gluon Gluon Fusion written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the first measurement of [sigma](gG → t{bar t})/[sigma](p{bar p} → t{bar t}). We use 0.96 fb−1 of √s = 1.96 TeV p{bar p} collision data recorded with the CDF II detector at Fermilab. We identify the candidate t{bar t} events with a high-energy charged lepton, a neutrino candidate, and four or more jets with at least one identified as originating from a b quark. Using charged particles with low transverse momentum in t{bar t} events, we find [sigma](gg → t{bar t})/[sigma](p{bar p} → t{bar t}) = 0.07 ± 0.14(stat) ± 0.07(syst), in agreement with the standard model NLO prediction of 0.15 ± 0.05.
Download or read book Next to next to leading Order O alpha 2 alpha 2 S Results for Top Quark Pair Production in Photon photon Collisions written by Jürgen G. Körner and published by . This book was released on 2006 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Next to next to leading Order 2 2s Omicron alpha 2 Alpha 2 S Results for Top Quark Pair Production in Photon photon Collisions written by Jürgen G. Körner and published by . This book was released on 2006 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Theory of Quark and Gluon Interactions written by F. J. Ynduráin and published by . This book was released on 1993 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Next to leading Order QCD Predictions for Top quark Pair Production with Up to Three Jets written by Stefan Höche and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: We present theoretical predictions for the production of top-quark pairs with up to three jets at the next-to leading order in perturbative QCD. The relevant calculations are performed with Sherpa and OpenLoops. To address the issue of scale choices and related uncertainties in the presence of multiple scales, we compare results obtained with the standard scale HT/2 at fixed order and the MiNLO procedure. Analyzing various cross sections and distributions for tt ̄+0,1,2,3 jets at the 13 TeV LHC we find a remarkable overall agreement between fixed-order and MiNLO results. The differences are typically below the respective factor-two scale variations, suggesting that for all considered jet multiplicities missing higher-order effects should not exceed the ten percent level
Download or read book The Heart of the Matter from Nuclear Interactions to Quark Gluon Dymanics sic written by J.-F. Mathiot and published by Atlantica Séguier Frontières. This book was released on 1995 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study on the Top Quark Pair Production Mechanism in 1 96 TeV Proton antiproton Collisions written by and published by . This book was released on 2008 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the top quark pair production mechanism in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV is described. The main subjects are the measurements of the top quark pair production cross section, the top quark mass and a search for a new particle decaying to the top quark pair. The analyses are based on 1.9 fb−1 of data collected by the Collider Detector at Fermilab (CDF) Run II experiment between March 2002 and May 2007, using the lepton+jets events. The measured top quark pair production cross section is 8.2 ± 0.5 (stat.) ± 0.8 (syst.) ± 0.5 (lum.) pb, which is slightly higher than the standard model prediction at the top mass of 175 GeV/c2. The top quark mass is an important parameter in the standard model, and also in the experimental studies. The measured top quark mass if 171.6 ± 2.0 (stat.) ± 1.3(syst.) GeV/c2. Finally, they report on a search for a new gauge boson decaying to t{bar t}, which interferes with the standard model gluon in the q{bar q} --> t{bar t} production process. They call such a hypothetical particle a 'Massive Gluon'. The observed t{bar t} invariant mass distribution is consistent with the standard model expectations, and also the measured massive gluon coupling strength with quarks is consistent within a statistical fluctuation of the standard model expectation in the wide range of the massive gluon masses and widths. They set the upper and lower limits on the coupling strength of the massive gluon.
Download or read book Quark and Gluon Production in Ultrarelativistic Heavy Ion Collisions written by Kari J. Eskola and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Massive quark production in electron positron annihilation to order 2s alpha 2 s written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taming the Forces Between Quarks and Gluons written by Pierre Baal and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a collection of selected papers by Pierre van Baal on the subject of quark-gluon interactions. He concentrates on semi-perturbative phenomena that occur when these particles are confined to a box. He introduced in 1998 the notion of calorons to explain what happens in the high temperature phase of the quark-gluon plasma. Van Baal's discoveries of the mathematical intricacies of twisted gluon field configurations have left their mark on the field, opening new directions for numerical simulations. This reprint is intended to be a comprehensive introduction for all those who wish to have deeper understanding of quark-gluon dynamics.
Download or read book Quark gluon Plasma 4 written by Rudolph C. Hwa and published by World Scientific. This book was released on 2010 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a review volume containing articles written by experts on current theoretical topics in the subject of Quark-Gluon Plasma created in heavy-ion collisions at high energy. It is the fourth volume in the series with the same title sequenced numerically. The articles are written in a pedagogical style so that they can be helpful to a wide range of researchers from graduate students to mature physicists who have not worked previously on the subject. A reader should be able to learn from the reviews without having extensive knowledge of the background literature.
Download or read book Top Quark Production at Threshold with alpha 2 3 Accuracy written by K. Melnikov and published by . This book was released on 1998 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Top Quark Production by Gluon gluon Collision written by Joshua Robert Wickman and published by . This book was released on 2006 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
