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Qcd Corrections And New Physics
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Book Synopsis Qcd Corrections And New Physics - Proceedings Of The International Symposium by : Jiro Kodaira
Download or read book Qcd Corrections And New Physics - Proceedings Of The International Symposium written by Jiro Kodaira and published by World Scientific. This book was released on 1998-09-02 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses recent developments in both the theoretical and the experimental aspects of QCD. Its main goal is to establish precise predictions of the Standard Model in order to find clues to the discovery of New Physics.
Book Synopsis QCD Higher-Order Effects and Search for New Physics by : Jian Wang
Download or read book QCD Higher-Order Effects and Search for New Physics written by Jian Wang and published by Springer. This book was released on 2015-10-28 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book mainly investigates the precision predictions on the signal of new physics at the Large Hadron Collider (LHC) in the perturbative Quantum Chromodynamics (QCD) scheme. The potential of the LHC to discover the signal of dark matter associated production with a photon is studied after including next-to-leading order QCD corrections. The factorization and resummation of t-channel top quark transverse momentum distribution in the standard model at both the Tevatron and the LHC with soft-collinear effective theory are presented. The potential of the early LHC to discover the signal of monotops is discussed. These examples illustrate the method of searching for new physics beyond what is known today with high precision.
Book Synopsis New techniques for calculating higher order QCD corrections by : Z. Kunszt
Download or read book New techniques for calculating higher order QCD corrections written by Z. Kunszt and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the International Symposium on QCD Corrections and New Physics by : Ken Sasaki
Download or read book Proceedings of the International Symposium on QCD Corrections and New Physics written by Ken Sasaki and published by World Scientific Publishing Company Incorporated. This book was released on 1998 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses recent developments in both the theoretical and the experimental aspects of QCD. Its main goal is to establish precise predictions of the Standard Model in order to find clues to the discovery of New Physics.
Book Synopsis Higher Order QCD Corrections in Small X Physics by : Grigorios Chachamis
Download or read book Higher Order QCD Corrections in Small X Physics written by Grigorios Chachamis and published by . This book was released on 2006 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book QCD at 200 TeV written by L. Cifarelli and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the Proceedings of the 17th Workshop of the INFN ELOISATRON Project on "QCD at 200 TeV", held at the "Ettore Majorana" Centre for Scientific Culture, EMCSC, Erice, Trapani, Italy, in the period 11-17 June 1991. The new multi-Te V frontiers of Subnuclear Physics are no more beyond our imagination. A conceptual design of the highest energy (100+100 TeV) proton-proton collider -the ELOISA TRON -already exists. Intensive R & D studies are on the go to develop the most promising and innovative detector technologies for the highest energy and luminosity. QCD (Quantum Chromo-Dynamics) will be the theory to describe the expected Physics scenario of future S upercolliders. The purpose of the Workshop was therefore to review the recent status of QCD in High Energy interactions and to discuss the novel aspects of Perturbative and Non Perturbative QCD with special emphasis on future experimental studies at Super-High Energy Colliders, up to the 200 Te V limit. The topics were: - Classical QCD: particle multiplication, multiplicities and spectra, jet profiles, coherence effects, etc. - Hadron interaction cross-sections and structure functions at Super-High Energies, small-x behaviour, QCD Pomeron, "hot spots"--QCD fragmentation models, present and future. - Artificial neural networks in High Energy Physics. - New theoretical aspects of QCD at Super-High Energies (instanton-induced large cross sections, baryon number violation and peculiar multi-quark production events, etc.)
Book Synopsis QCD and Collider Physics by : R. K. Ellis
Download or read book QCD and Collider Physics written by R. K. Ellis and published by Cambridge University Press. This book was released on 2003-12-04 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed overview of the physics of high-energy colliders emphasising the role of QCD.
Download or read book The QCD written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum Chromo-Dynamics (QCD), and more generally the physics of the Standard Model (SM), enter in many ways in high energy processes at TeV Colliders, and especially in hadron colliders (the Tevatron at Fermilab and the forthcoming LHC at CERN), First of all, at hadron colliders, QCD controls the parton luminosity, which rules the production rates of any particle or system with large invariant mass and/or large transverse momentum. Accurate predictions for any signal of possible ''New Physics'' sought at hadron colliders, as well as the corresponding backgrounds, require an improvement in the control of uncertainties on the determination of PDF and of the propagation of these uncertainties in the predictions. Furthermore, to fully exploit these new types of PDF with uncertainties, uniform tools (computer interfaces, standardization of the PDF evolution codes used by the various groups fitting PDF's) need to be proposed and developed. The dynamics of colour also affects, both in normalization and shape, various observables of the signals of any possible ''New Physics'' sought at the TeV scale, such as, e.g. the production rate, or the distributions in transverse momentum of the Higgs boson. Last, but not least, QCD governs many backgrounds to the searches for this ''New Physics''. Large and important QCD corrections may come from extra hard parton emission (and the corresponding virtual corrections), involving multi-leg and/or multi-loop amplitudes. This requires complex higher order calculations, and new methods have to be designed to compute the required multi-legs and/or multi-loop corrections in a tractable form. In the case of semi-inclusive observables, logarithmically enhanced contributions coming from multiple soft and collinear gluon emission require sophisticated QCD resummation techniques. Resummation is a catch-all name for efforts to extend the predictive power of QCD by summing the large logarithmic corrections to all orders in perturbation theory. In practice, the resummation formalism depends on the observable at issue, through the type of logarithm to be resummed, and the resummation methods. In parallel with this perturbative QCD-oriented working programme, the implementation of both QCD/SM and New physics in Monte Carlo event generators is confronted with a number of issues which deserve uniformization or improvements. The important issues are: (1) the problem of interfacing partonic event generators to showering Monte-Carlos; (2) an implementation using this interface to calculate backgrounds which are poorly simulated by the showering Monte-Carlos alone; (3) a comparison of the HERWIG and PYTHIA parton shower models with the predictions of soft gluon resummation; (4) studies of the underlying events at hadron colliders to check how well they are modeled by the Monte-Carlo generators.
Book Synopsis QCD as a Theory of Hadrons by : Stephan Narison
Download or read book QCD as a Theory of Hadrons written by Stephan Narison and published by Cambridge University Press. This book was released on 2023-01-31 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2004 book provides a pedagogical introduction to the perturbative and non-perturbative aspects of quantum chromodynamics (QCD). The text introduces the basic theory of QCD and its historical development, covering pre-QCD ideas of strong interactions such as the quark and parton models, the notion of colours and the S-matrix approach. The author then discusses gauge theory, techniques of dimensional regularization and renormalization, deep inelastic scattering and hard processes in hadron collisions, hadron jets and e+e- annihilations. Other topics include power corrections and the technologies of the Shifman-Vainshtein-Zakharov operating product expansion. The final parts of the book are devoted to modern non-perturbative approaches to QCD and the phenomenological aspects of QCD spectral sum rules. The book will be a valuable reference for graduate students and researchers in high-energy particle and nuclear physics, both theoretical and experimental. This book has been reissued as an Open Access publication on Cambridge Core.
Book Synopsis NLO QCD Corrections to Ηc+hc(1P)/ψ1, 2(1D) Production at B-factories*Supported by Ministry of Science and Technology of the People's Republic of China (2015CB856703) and National Natural Science Foundation of China (11175249, 11375200). by :
Download or read book NLO QCD Corrections to Ηc+hc(1P)/ψ1, 2(1D) Production at B-factories*Supported by Ministry of Science and Technology of the People's Republic of China (2015CB856703) and National Natural Science Foundation of China (11175249, 11375200). written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis QCD as a Theory of Hadrons by : Stephan Narison
Download or read book QCD as a Theory of Hadrons written by Stephan Narison and published by Cambridge University Press. This book was released on 2004-02-02 with total page 813 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to QCD, covering recent developments as well as giving a historical overview of the subject. Emphasis is placed on the method of QCD spectral sum rules, with applications to hadronic systems. Suitable for graduate students and researchers in high-energy and nuclear physics, both theoretical and experimental.
Book Synopsis Next-to-leading Order QCD Corrections to the Decay of Higgs to Vector Meson and Z Boson *Supported by National Natural Science Foundation of China (11375168). by :
Download or read book Next-to-leading Order QCD Corrections to the Decay of Higgs to Vector Meson and Z Boson *Supported by National Natural Science Foundation of China (11375168). written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Higher Order QCD Corrections to Single Top Quark Production by : Mohammad Assadsolimani
Download or read book Higher Order QCD Corrections to Single Top Quark Production written by Mohammad Assadsolimani and published by disserta Verlag. This book was released on 2014-08 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is known that the LHC has a considerable discovery potential because of its large centre-of-mass energy (vs =14 TeV) and the high design luminosity. In addition, the two experiments ATLAS and CMS perform precision measurements for numerous models in physics. The increasing experimental precision demands an even higher level of accuracy on the theoretical side. For a more precise prediction of outcomes, one has to consider the corrections obtained typically from Quantum Chromodynamics (QCD). The calculation of these corrections in the high energy regime is described by perturbation theory. In the present study, multi-loop calculations in QCD, including in particular two-loop corrections for single top quark production, are considered. There are several phenomenological motivations to study single top quark production: Firstly, the process is sensitive to the electroweak Wtb-vertex; moreover, non-standard couplings can hint at physics beyond the Standard Model. Secondly, the t-channel cross section measurement provides information on the b-quark Parton Distribution Functions (PDF). Finally, single top quark production enables us to directly measure the Cabibbo-Kobayashi-Maskawa(CKM) matrix element Vtb. The next-to-next-to-leading-order (NNLO) calculation of the single top quark production has many building blocks. In this study, two blocks will be presented: one-loop corrections squared and two-loop corrections interfered with Born. Initially, the one-loop squared contribution at NNLO for single top quark production will be calculated. Before we begin with the calculation of the two-loop corrections to single top quark production, we calculate the QCD form factors of heavy quarks at NNLO, along with the axial vector coupling as a first independent check. A comparison with the relevant literature suggests that this approach is in line with generally accepted procedure. This consistency check provides a proof of the validity of our setup. In the next step, the two-loop corrections to single top quark production will be calculated. After reducing all occurring tensor integrals to scalar integrals, we apply the integration by parts method (IBP) to find the master integrals. This step is a major challenge compared to all similar calculations because of the number of variables in the problem (two Mandelstam variables s and t, the dimension d and the mass of the top quark mt as well as the mass of the W boson mw). Finally, the calculation of the three kinds of topologies – vertex corrections, double boxes and non-planar double boxes – in the two-loop contribution at NNLO calculation will be presented.
Book Synopsis Lectures on QED and QCD by : A. G. Grozin
Download or read book Lectures on QED and QCD written by A. G. Grozin and published by World Scientific. This book was released on 2007 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing precision of experimental data in many areas of elementary particle physics requires an equally precise theoretical description. In particular, radiative corrections (described by one- and multi-loop Feynman diagrams) have to be considered. Although a growing number of physicists are involved in such projects, multi-loop calculation methods can only be studied from original publications. With its coverage of multi-loop calculations, this book serves as an excellent supplement to the standard textbooks on quantum field theory. Based around postgraduate-level lectures given by the author, the material is suitable for both beginners and graduate students.
Book Synopsis At the Frontier of Particle Physics by : Mikhail A. Shifman
Download or read book At the Frontier of Particle Physics written by Mikhail A. Shifman and published by World Scientific. This book was released on 2001 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction / M. Shifman -- Introducing Boris Ioffe / B.V. Geshkenbein -- Boris Lazarevich Ioffe is 75 / I.B. Khriplovich -- ch. 1. Pages of the past. A top secret assignment / B.L. Ioffe. Editor's comments. Snapshots from the 1950's / Yu. F. Orlov -- ch. 2. The making of QCD. Quantizing the Yang-Mills field / L.D. Faddeev. The discovery of asymptotic freedom and the emergence of QCD / D.J. Gross. Editor's note. Recollections on dimensional regularization and related topics / C.G. Bollini. Historical curiosity: how asymptotic freedom of the Yang-Mills theory could have been discovered three times before Gross, Wilczek, and politzer, but was not / M. Shifman -- ch. 3. From hadrons to nuclei: crossing the border / S.R. Beane [und weitere] -- ch. 4. Chiral dynamics / H. Leutwyler -- ch. 5. Aspects of chiral symmetry / A. Smilga -- ch. 6. Nucleons as chiral solitons / D. Diakonov and V. Yu. Petrov -- ch. 7. Chiral QCD: baryon dynamics / U. MeiBner -- ch. 8. Hadrons in the 1/N expansion / A.V. Manohar -- ch. 9. QCD inequalities / S. Nussinov -- ch. 10. Regge poles in QCD / A.B. Kaidalov -- ch. 11. Small x physics and the colored glass condensate / L. McLerran -- ch. 12. On Gribov's ideas on confinement / A. Vainshtein -- ch. 13. QCD in a finite volume / P. van Baal -- ch. 14. Compact variables and singular fields in QCD / F. Lenz and S. Wörlen -- ch. 15. Instanton-induced effects in QCD / E.V. Shuryak -- ch. 16. Perturbative QCD and the parton structure of the nucleon / W.-K. Tung -- ch. 17. Multiloop evolution of the QCD coupling constant and quark masses / K.G. Chetyrkin -- ch. 18. Multi-parton amplitudes in QCD / Z. Bern -- ch. 19. Generalized parton distributions / A. Radyushkin -- ch. 20. Analytical QCD and multiparticle production / V.A. Khoze, W. Ochs and J. Wosiek -- ch. 21. Space-time picture of high energy scattering / H.G. Dosch -- ch. 22. High-energy QCD and Wilson lines / I. Balitsky -- ch. 23. Exclusive processes in quantum chromodynamics and the light-cone Fock representation / S.J. Brodsky -- ch. 24. Quark-hadron duality / M. Shifman -- ch. 25. QCD sum rules, a modern perspective / P. Colangelo and A. Khodjamirian -- ch. 26. Topics in the heavy quark expansion / N. Uraltsev -- ch. 27. Weak decays of heavy quarks / F. De Fazio -- ch. 28. Renormalons and power corrections / M. Beneke and V.M. Braun -- ch. 29. Confinement, magnetic Z[symbol] symmetry and low-energy effective theory of gluodynamics / A. Kovner -- ch. 30. Flux tubes and confinement in the Seiberg-Witten theory: lessons for QCD / A. Yung -- ch. 31. Millennial messages for QCD from the superworld and from the string / M.J. Strassler -- ch. 32. The center symmetry and its spontaneous breakdown at high temperature / K. Holland and U.-J. Wiese -- ch. 33. 2D model field theories and finite temperature and density / V. Schön and M. Thies -- ch. 34. Hot and dense QCD / A.V. Smilga -- ch. 35. The condensed matter physics of QCD / K. Rajagopal and F. Wilczek
Book Synopsis Quantum Chromodynamics by : B. L. Ioffe
Download or read book Quantum Chromodynamics written by B. L. Ioffe and published by Cambridge University Press. This book was released on 2010-01-21 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at graduate students and researchers in theoretical physics, this book presents the modern theory of strong interaction: quantum chromodynamics (QCD). The book exposes various perturbative and nonperturbative approaches to the theory, including chiral effective theory, the problems of anomalies, vacuum tunnel transitions, and the problem of divergence of the perturbative series. The QCD sum rules approach is exposed in detail. A great variety of hadronic properties (masses of mesons and baryons, magnetic moments, form factors, quark distributions in hadrons, etc.) have been found using this method. The evolution of hadronic structure functions is presented in detail, together with polarization phenomena. The problem of jets in QCD is treated through theoretical description and experimental observation. The connection with Regge theory is emphasized. The book covers many aspects of theory which are not discussed in other books, such as CET, QCD sum rules, and BFKL. • Provides a deep understanding of various aspects of the modern theory of strong interaction • Presents the general properties of QCD, before exploring perturbative and nonperturbative approaches • Discusses aspects of the theory such as CET, QCD sum rules, and BFKL, which are not covered in other books
Book Synopsis The QCD Vacuum, Hadrons and Superdense Matter by : E. V. Shuryak
Download or read book The QCD Vacuum, Hadrons and Superdense Matter written by E. V. Shuryak and published by World Scientific. This book was released on 2004 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This invaluable book is an extensive set of lecture notes on various aspects of non-perturbative quantum chromodynamics ? the fundamental theory of strong interaction on which nuclear and hadronic physics is based.The original edition of the book, written in the mid-1980's, had more of a review style. In the second edition the outline remains the same, but the text has been completely rewritten, and extended. Apart from the new developments over the years, this edition has benefited from several graduate courses which the author has taught at Stony Brook during the last decade. The text is now complemented by exercises and has a total of about 1000 references to major works, arranged by subject.Three major issues ? the structure of the QCD vacuum, the structure of hadrons, and the physics of hot/dense matter ? are addressed as physics problems. Therefore, when discussing any specific subject, the book attempts to incorporate (1) all the solid theoretical results, (2) experimental information, and (3) results of numerical (lattice) simulations, which are playing an increasing role in quantum field theory in general, and the development of QCD in particular.The QCD Vacuum, Hadrons and Superdense Matter takes the reader from the first encounter with the subject to the front line of research, as quickly as possible.
