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We summarize the state of the art of resummation techniques in the small-$x$ limit of perturbative QCD.

High Energy Physics - Phenomenology · Physics 2009-10-30 Vittorio Del Duca

Electromagnetic effects play an important role in many phenomena such as isospin-symmetry breaking in the hadron spectrum and the hadronic contributions to g-2. We have generalized the MILC QCD code to include the electromagnetic field. In…

High Energy Physics - Lattice · Physics 2014-11-18 Ran Zhou , Steven Gottlieb

Recently methods have been developed which exploit the chiral symmetry of QCD in order to make rigorous contact with low energy particle physics phenomenology. In these lectures we present a pedagogical introduction to these techniques.

High Energy Physics - Phenomenology · Physics 2009-09-25 Barry R. Holstein

Precision computations of QCD and QCD+electroweak emission scattering processes will play an important role in understanding experimental data from the LHC, and thereby in uncovering new physics beyond the Standard Model. Recent years have…

High Energy Physics - Phenomenology · Physics 2009-11-11 David A. Kosower

Recent developments of the Cascade-Exciton Model (CEM) of nuclear reactions are briefly described. These changes are motivated by new data on isotope production measured recently in "reverse kinematics" at GSI for interactions of 208-Pb and…

Nuclear Theory · Physics 2007-05-23 Stepan G. Mashnik , Arnold J. Sierk

The HL-LHC and the corresponding detector upgrades for the CMS experiment will present extreme challenges for the full simulation. In particular, increased precision in models of physics processes may be required for accurate reproduction…

Computational Physics · Physics 2020-11-19 Kevin Pedro

We use the theory of YFS resummation to compute the size of the expected resummed soft radiative threshold effects in precision studies of heavy particle production at the LHC, where accuracies of 1 percent are desired in some processes. We…

High Energy Physics - Phenomenology · Physics 2009-11-10 C. Glosser , S. Jadach , B. F. L. Ward , S. A. Yost

We reminde definite results related to the low-energy hadronic phenomenology, obtained using the QCD sum rules methods. We emphasize that these results can be of interest for the comparison with available and new experimental results,…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. L. Kataev

We use comparison with recent LHCb data on single Z/\gamma^* production and decay to lepton pairs as a vehicle to study the current status of the application of our approach of {\it exact} amplitude-based resummation in quantum field theory…

High Energy Physics - Phenomenology · Physics 2016-03-30 A. Mukhopadhyay , B. F. L. Ward

In Hybrid Monte Carlo(HMC) simulations for full QCD, the gauge fields evolve smoothly as a function of Molecular Dynamics (MD) time. Thus we investigate improved methods of estimating the trial solutions to the Dirac propagator as…

High Energy Physics - Lattice · Physics 2009-10-28 R. C. Brower , A. R. Levi , K. Orginos

We apply a recent proposal to speed up the Hybrid-Monte-Carlo simulation of systems with dynamical fermions to two flavor QCD with clover-improvement. For our smallest quark masses we see a speed-up of more than a factor of two compared…

High Energy Physics - Lattice · Physics 2009-11-07 M. Hasenbusch , K. Jansen

In the last few years, numerical simulations of QCD on the lattice have reached a new level of accuracy. A wide range of thermodynamic quantities is now available in the continuum limit and for physical quark masses. This allows a…

High Energy Physics - Lattice · Physics 2018-07-25 Claudia Ratti

The Improved Quantum Molecular Dynamics (ImQMD) model incorporated with the statistical decay model is used to investigate the intermediate energy nucleon-induced reactions. In our last work, the description on light complex particle…

Nuclear Theory · Physics 2015-09-14 Dexian Wei , Lihua Mao , Ning Wang , Min Liu , Li Ou

We summarise the motivation for, and the status of, the tools developed by CEDAR/MCnet for validating and tuning Monte Carlo event generators for the LHC against data from previous colliders. We then present selected preliminary results…

High Energy Physics - Phenomenology · Physics 2014-11-18 Andy Buckley , Hendrik Hoeth , Holger Schulz , Jan Eike von Seggern

At finite temperature a breakdown of the hard thermal loop expansion arises whenever external momenta are light-like or tend to very soft scales. A resummation of ladder graphs is important in these cases where the effects of infrared or…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. Petitgirard

We present the current status of the application of our approach of exact amplitude-based resummation in quantum field theory to two areas of investigation: precision QCD calculations of all three of us as needed for LHC physics and the…

High Energy Physics - Phenomenology · Physics 2012-01-04 B. F. L. Ward , S. K. Majhi , S. A. Yost

In this lecture, the physics potential for the e+e- linear collider experiments ILC and CLIC is reviewed. The experimental conditions are compared to those at hadron colliders and their intrinsic value for precision experiments,…

Accelerator Physics · Physics 2019-08-14 Strahinja Lukić

We discuss some highlights of the FCC-ee flavor physics program. It will help to explore various aspects of flavor physics: to test precision calculations, to probe nonperturbative QCD methods, and to increase the sensitivity to physics…

High Energy Physics - Phenomenology · Physics 2021-08-12 Yuval Grossman , Zoltan Ligeti

The recent development of the Field Correlator Method (FCM) is discussed, with applications to the most interesting areas of QCD physics obtained in the lattice data and experiment. These areas include: a) the connection of colorelectric…

High Energy Physics - Phenomenology · Physics 2024-07-16 M. S. Lukashov , Yu. A. Simonov

The implementation of QED initial-state radiative corrections in the process of four-fermion production at LEP200 and higher-energy e+e- colliders is discussed. Because of the presence of charged-current processes, this is a nontrivial…

High Energy Physics - Phenomenology · Physics 2009-10-28 F. A. Berends , R. Pittau , R. Kleiss