Download or read book NLO QCD Corrections to the Polarized Photo and Hadroproduction of Heavy Quarks written by Ingo Bojak and published by . This book was released on 2000 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lepton Scattering Hadrons And Qcd Procs Of The Workshop written by W Melnitchouk and published by World Scientific. This book was released on 2001-10-19 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is centered on recent developments in the exploration of hadronic structure through lepton scattering, in the description of hadron physics directly from lattice QCD and non-perturbative QCD models, and in efforts to strengthen the links between these activities. Specific topics that are covered include: parton distribution functions, polarized structure functions, generalized structure functions, nuclear effects, quark-hadron duality, electromagnetic form factors, structure functions and hadron properties from lattice QCD, and QCD models based on the Dyson-Schwinger equations.
Download or read book NLO Corrections to Heavy Quark Production with Polarized Beams written by M. Stratmann and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NLO QCD CORRECTIONS TO HADRONIC HIGGS PRODUCTION WITH HEAVY QUARKS written by C. JACKSON and published by . This book was released on 2003 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of a Higgs boson in association with a pair of t{bar t} or b{bar b} quarks plays a very important role at both the Tevatron and the Large Hadron Collider. The theoretical prediction of the corresponding cross sections has been improved by including the complete next-to-leading order QCD corrections. After a brief description of the most relevant technical aspects of the calculation, we review the results obtained for both the Tevatron and the Large Hadron Collider.
Download or read book Physics with an Electron Polarized Light Ion Collider written by Richard G. Milner and published by American Institute of Physics. This book was released on 2001-10-05 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last several years, physicists interested in understanding the structure of matter at the fundamental partonic (quark and lepton) level have come to realize that an electron-ion collider can address many of the outstanding questions in hadronic physics. In Summer 2000, a new Long Range Planning Exercise was announced for nuclear physics in the United States, and the proponents of an electron-ion collider came together to make the scientific case for this machine. This workshop summarizes the physics case and machine design for a next generation facility to study the fundamental structure of hadrons. Topics include: Spin and flavor structure of the nucleon, semi-exclusive processes, heavy quarks/target fragmentation, e-A physics, and machine.
Download or read book NLO QCD Corrections to Higgs Radiation Off Heavy Quarks at Hadron Colliders written by Benedikt Plümper and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polarization in Heavy Quark Decays written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis I concentrate on the angular correlations in top quark decays and their next--to--leading order (NLO) QCD corrections. I also discuss the leading--order (LO) angular correlations in unpolarized and polarized hyperon decays. In the first part of the thesis I calculate the angular correlation between the top quark spin and the momentum of decay products in the rest frame decay of a polarized top quark into a charged Higgs boson and a bottom quark in Two-Higgs-Doublet-Models: $t(uparrow)rightarrow b+H^{+}$. The decay rate in this process is split into an angular independent part (unpolarized) and an angular dependent part (polar correlation). I provide closed form formulae for the ${mathcal O}(alpha_{s})$ radiative corrections to the unpolarized and the polar correlation functions for $m_{b}neq 0$ and $m_{b}=0$. The results for the unpolarized rate agree with the existing results in the literature. The results for the polarized correlations are new. I found that, for certain values of $tanbeta$, the ${mathcal O}(alpha_s)$ radiative corrections to the unpolarized, polarized rates, and the asymmetry parameter can become quite large. In the second part I concentrate on the semileptonic rest frame decay of a polarized top quark into a bottom quark and a lepton pair: $t(uparrow) to X_b + ell^+ + nu_ell$. I analyze the angular correlations between the top quark spin and the momenta of the decay products in two different helicity coordinate systems: system 1a with the $z$--axis along the charged lepton momentum, and system 3a with the $z$--axis along the neutrino momentum. The decay rate then splits into an angular independent part (unpolarized), a polar angle dependent part (polar correlation) and an azimuthal angle dependent part (azimuthal correlation). I present closed form expressions for the ${mathcal O}(alpha_{s})$ radiative corrections to the unpolarized part and the polar and azimuthal correlations in system 1a and 3a for $m_{b}neq 0$ and $m_{b}=0$. Fo.
Download or read book Next to leading Order QCD Corrections to the Polarized Photoproduction of Heavy Flavors written by I. Bojak and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photoproduction of Heavy Quarks in Next to leading Order QCD with Longitudinally Polarized Initial States written by I. Bojak and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DIS 99 written by Johannes Blümlein and published by . This book was released on 1999 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NLO QCD CORRECTIONS TO A PI LAMBDA LAMBDA written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a calculation for single-inclusive large-p[sub T] pion production in longitudinally polarized pp collisions in next-to-leading order QCD. The corresponding double-spin asymmetry A[sub LL][sup[pi]] for this process will soon be used at BNL-RHIC to measure[Delta]g.
Download or read book Real Next to Next to Leading Order QCD Corrections to J psi and Upsilon Hadroproductiom in Association with a Photon written by and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We update the study of the QCD corrections to direct J/? and? hadroproduction in association with a photon in the QCD-based approach of the Colour-Singlet (CS) Model. After comparison with the recent full next-to-leading-order (NLO) computation for this process, we provide an independent confirmation to the inclusive case that NLO QCD corrections to quarkonium-production processes whose LO exhibits a non-leading P{sub T} behavior can be reliably computed at mid and large P{sub T} by considering only the real emission contributions accompanied with a kinematical cut. In turn, we evaluate the leading part of the?{sub S}4? contributions, namely those coming from (J/?,?) +? associated with two light partons. We find that they are dominant at mid and large P{sub T}. This confirms our expectations from the leading P{sub T} scaling of the new topologies appearing at NNLO. We obtain that the yield from the CS becomes one order of magnitude larger than the upper value of the potential Colour-Octet yield. The polarization of the 3S1 quarkonia produced in association with a photon is confirmed to be longitudinal at mid and large P{sub T}.
Download or read book Third order QCD Corrections to Heavy Quark Pair Production Near Threshold written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the QCD 2 3 Contributions to the Hadroproduction of Heavy Quarks written by E. W. N. Glover and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book One loop QCD corrections to the inclusive production cross section for heavy quarks in pp collisions at high transverse energies written by Bodo Lampe and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book QCD Corrections to Heavy Quark Production in Hadron hadron Collisions written by Wim Beenakker and published by . This book was released on 1990 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book QCD corrections to heavy quark production in hadron hadron collisions written by and published by . This book was released on 1990 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
