QCD Higher-Order Effects and Search for New Physics, Jian Wang
Автор: Bigi Ikaros I., Gambino Paolo, Mannel Thomas Название: QCD and Heavy Quarks: In Memoriam Nikolai Uraltsev ISBN: 9814602736 ISBN-13(EAN): 9789814602730 Издательство: World Scientific Publishing Рейтинг: Цена: 10771.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
The book collects a few articles on QCD and heavy quarks by close colleagues and friends of Prof. Dr. Nikolai Uraltsev, who passed away early and unexpectedly in 2013. Nikolai Uraltsev was an excellent theorist and a wonderful friend, and this book is to honor his ground breaking work in fundamental physics, such as CP violation, instantons and renormalons in QCD, and in particular his work on the heavy quark expansion.
The book summarizes some aspects of QCD from a special perspective, which is relevant for the applications of QCD in the context of weak interactions. This includes CP violation in hadronic processes as well as the hadronic matrix elements in weak decays. The reader will get insight into the special way of understanding fundamental physics, which was peculiar of our former colleague Nikolai Uraltsev.
Название: Lectures on qcd ISBN: 3662141248 ISBN-13(EAN): 9783662141243 Издательство: Springer Рейтинг: Цена: 14365.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This is a collection of pedagogically written articles on quantum chromodynamics. The book contains concepts and applications of lattice gauge theories, finite temperature field theory, an article on the method of sum rules in QCD, and so on.
Автор: Gorbenko Название: From QCD Flux Tubes to Gravitational S-matrix and Back ISBN: 3319446029 ISBN-13(EAN): 9783319446028 Издательство: Springer Рейтинг: Цена: 15372.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This thesis studies various aspects of non-critical strings both as an example of a non-trivial and solvable model of quantum gravity and as a consistent approximation to the confining flux tube in quantum chromodynamics (QCD). It proposes and develops a new technique for calculating the finite volume spectrum of confining flux tubes. This technique is based on approximate integrability and it played a game-changing role in the study of confining strings. Previously, a theoretical interpretation of available high quality lattice data was impossible, because the conventional perturbative expansion for calculating the string spectra was badly asymptotically diverging in the regime accessible on the lattice. With the new approach, energy levels can be calculated for much shorter flux tubes than was previously possible, allowing for a quantitative comparison with existing lattice data. The improved theoretical control makes it manifest that existing lattice data provides strong evidence for a new pseudoscalar particle localized on the QCD fluxtube - the worldsheet axion. The new technique paves a novel and promising path towards understanding the dynamics of quark confinement.
Описание: This doctoral thesis focuses on the search for new phenomena in top-antitop quark (tt) final states with additional b-quark jets at the LHC. It uses the full Run 1 dataset collected by the ATLAS experiment in proton-proton collisions at ?s=8 TeV. The final state of interest consists of an isolated lepton, a neutrino and at least six jets with at least four b-tagged jets, a challenging experimental signature owing to the large background from tt+heavy-flavor production. This final state is characteristic of ttH production, with the Higgs boson decaying into bb, a process that allows direct probing of the top-Higgs Yukawa coupling. This signature is also present in many extensions of the Standard Model that have been proposed as solutions to the hierarchy problem, such as supersymmetry or composite Higgs models, which predict the pair production of bosonic or fermionic top quark partners, or the anomalous production of four-top-quark events. All these physics processes have been searched for using an ambitious search strategy that has been developed on the basis of a combination of state-of-art theoretical predictions and a sophisticated statistical analysis to constrain in-situ the large background uncertainties. As a result, the most restrictive bounds to date on the above physics processes have been obtained.
ООО "Логосфера " Тел:+7(495) 980-12-10 www.logobook.ru
