Download or read book O alpha 4s Omicron alpha 4 S Loop by loop Contributions to Heavy Quark Pair Production in Hadronic Collisions written by Mikhail Rogal and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book O alpha 4 S Loop by loop Contributions to Heavy Quark Pair Production in Hadronic Collisions written by Mikhail Rogal and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 4s Omicron alpha 4 S Loop by loop Contributions to Heavy Quark Pair Production in Hadronic Collisions written by Mikhail Rogal and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book O alpha 4 S Loop by loop Contributions to Heavy Quark Pair Production in Hadronic Collisions written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The present state of the theoretical predictions for the hadronic heavy hadron production is not quite satisfactory. The full next-to-leading order (NLO) ${cal O} (alpha_s^3)$ corrections to the hadroproduction of heavy quarks have raised the leading order (LO) ${cal O} (alpha_s^2)$ estimates but the NLO predictions are still slightly below the experimental numbers. Moreover, the theoretical NLO predictions suffer from the usual large uncertainty resulting from the freedom in the choice of renormalization and factorization scales of perturbative QCD. In this light there are hopes that a next-to-next-to-leading order (NNLO) ${cal O} (alpha_s^4)$ calculation will bring theoretical predictions even closer to the experimental data. Also, the dependence on the factorization and renormalization scales of the physical process is expected to be greatly reduced at NNLO. This would reduce the theoretical uncertainty and therefore make the comparison between theory and experiment much more significant. In this thesis I have concentrated on that part of NNLO corrections for hadronic heavy quark production where one-loop integrals contribute in the form of a loop-by-loop product. In the first part of the thesis I use dimensional regularization to calculate the ${cal O}(ep^2)$ expansion of scalar one-loop one-, two-, three- and four-point integrals. The Laurent series of the scalar integrals is needed as an input for the calculation of the one-loop matrix elements for the loop-by-loop contributions. Since each factor of the loop-by-loop product has negative powers of the dimensional regularization parameter $ep$ up to ${cal O}(ep^{-2})$, the Laurent series of the scalar integrals has to be calculated up to ${cal O}(ep^2)$. The negative powers of $ep$ are a consequence of ultraviolet and infrared/collinear (or mass) divergences. Among the scalar integrals the four-point integrals are the most complicated. The ${cal O}(ep^2)$ expansion of the three- and four-point integrals contain.
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 NNLO O 1hn4 1tnS alpha 4 S Results for Heavy Quark Pair Production in Quark antiquark Collisions written by Jürgen G. Körner and published by . This book was released on 2008 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NNLO O alpha 4S Results for Heavy Quark Pair Production in Quark antiquark Collisions written by Jürgen G. Körner and published by . This book was released on 2008 with total page 12 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 Next to next to leading Order O63 a63 1hn2 a63 1hn2 1tns 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 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 O a4s Results for Heavy Quark Pair Production in Quark antiquark Collisions the One loop Squared Contributions written by and published by . This book was released on 2008 with total page 12 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 O63 1hn4 1tns 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 Heavy quark Pair Production in Gluon Fusion at Next to next to leading O a4s Order One loop Squared Contributions written by and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Next to next to leading Order O 2 2s 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 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heavy quark Pair Production at Two Loops in QCD written by Sven-Olaf Moch and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science Data Booklet written by Manjunath.R and published by Manjunath.R. This book was released on 2020-07-11 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Scientific Compendium: A Comprehensive Reference for Data and Formulas The "Science Data Booklet" is an essential companion for students, researchers, and science enthusiasts alike, providing a comprehensive collection of key scientific data and information. This meticulously curated reference book serves as a treasure trove of facts, equations, and formulas from various scientific disciplines, designed to empower readers with the tools they need to excel in their scientific pursuits. Inside this invaluable compendium, readers will discover a wealth of information spanning the realms of physics, chemistry, biology, astronomy, and more. From fundamental constants to conversion factors, this book offers a concise and easily accessible compilation of scientific knowledge that is essential for scientific investigations, experiments, and calculations. Whether you are a student preparing for exams, a researcher seeking quick access to vital data, or a science enthusiast eager to delve deeper into the world of scientific knowledge, this book is your indispensable companion. With the help of this book, you can access a plethora of scientific knowledge at your fingertips, anytime and anywhere. In a world increasingly driven by scientific advancements, the "Science Data Booklet" serves as an invaluable resource for anyone seeking to navigate the complexities of scientific data. This book is not only a reference guide but also a catalyst for curiosity, inspiring readers to explore the wonders of the natural world and embark on their own scientific journeys. Unlock the power of scientific knowledge with the "Science Data Booklet" and embark on a fascinating voyage of discovery, innovation, and understanding.
