LATTICE QCD CURRENT STATUS AND GOALS AT ONE TERAFLOPS

1994 ◽  
Vol 05 (02) ◽  
pp. 195-200
Author(s):  
CARLETON DeTAR
Keyword(s):  
Numerical Simulations ◽  
Quantum Chromodynamics ◽  
Lattice Qcd ◽  
Recent Progress ◽  
Current Status ◽  
Strong Interactions ◽  
Significant Progress ◽  
The Past

Through numerical simulations over the past decade we have made significant progress toward solving quantum chromodynamics (QCD), the widely accepted theory of the strong interactions. Quantitatively respectable results are beginning to emerge. We are also gaining new qualitative insights into the workings of the theory that will assist in the design and analysis of experiment. I give a few examples of recent progress in lattice QCD and discuss goals and prospects for computations using the coming generation of teraflops-scale supercomputers.

scholarly journals THERMAL PHOTONS IN STRONG INTERACTIONS

2004 ◽  
Vol 19 (23) ◽  
pp. 1717-1732 ◽  
Author(s):  
RALF RAPP
Keyword(s):  
Experimental Data ◽  
Recent Progress ◽  
Theoretical Calculations ◽  
Heavy Ion ◽  
Current Status ◽  
Strong Interactions ◽  
Emission Rates ◽  
Ion Collisions ◽  
The Status ◽  
Equilibrium Emission

A brief survey is given on the current status of evaluating thermal production of photons from a strongly interacting medium. Emphasis is put on recent progress in assessing equilibrium emission rates in both hadronic and quark–gluon matter. We also give an update on the status of comparing theoretical calculations with experimental data from heavy-ion collisions at the SPS, as well as prospects for RHIC. Finally, applications of photon rate calculations to colorsuperconducting quark matter are discussed.

The Strong Interactions

2021 ◽  
pp. 422-441
Author(s):  
J. Iliopoulos ◽  
T.N. Tomaras
Keyword(s):  
Perturbation Theory ◽  
Gauge Theory ◽  
Numerical Simulations ◽  
Quantum Chromodynamics ◽  
Strong Interactions ◽  
Strong Coupling Regime ◽  
Inelastic Electron ◽  
Nucleon Scattering ◽  
Fundamental Level ◽  
Series Of Experiments

For many years strong interactions had a well-deserved reputation for complexity. Their apparent strength rendered perturbation theory inapplicable. However, in the late 1960s a series of experiments studying the deep inelastic electron–nucleon scattering showed that at a more fundamental level, the strong interactions among the constituent quarks can be described perturbatively by an asymptotically free gauge theory. We present the theory of quantum chromodynamics, the unbroken gauge theory of the colour SU(3) group. We show how we can compute its predictions in the kinematic regions in which perturbation theory is applicable, but also in the strong coupling regime through numerical simulations on a space-time lattice.

scholarly journals QUANTUM CHROMODYNAMICS AT COLLIDERS

2006 ◽  
Vol 21 (08n09) ◽  
pp. 1792-1804
Author(s):  
JON M. BUTTERWORTH
Keyword(s):  
Quantum Chromodynamics ◽  
Strong Interaction ◽  
Recent Progress ◽  
New Physics ◽  
Effective Theory ◽  
The Past ◽  
Interaction Studies ◽  
Electroweak Sector ◽  
Second Category

QCD is the accepted (that is, the effective) theory of the strong interaction; studies at colliders are no longer designed to establish this. Such studies can now be divided into two categories. The first involves the identification of observables which can be both measured and predicted at the level of a few percent. Such studies parallel those of the electroweak sector over the past fifteen years, and deviations from expectations would be a sign of new physics. These observables provide a firm "place to stand" from which to extend our understanding. This links to the second category of study, where one deliberately moves to regions in which the usual theoretical tools fail; here new approximations in QCD are developed to increase our portfolio of understood processes, and hence our sensitivity to new physics. Recent progress in both these aspects of QCD at colliders is discussed.

Recent progress on the organic and metal complex-based fluorescent probes for monitoring nitric oxide in living biological systems

2020 ◽  
Vol 18 (8) ◽  
pp. 1522-1549 ◽  
Author(s):  
Lizhen Wang ◽  
Juan Zhang ◽  
Xue An ◽  
Hongdong Duan
Keyword(s):  
Nitric Oxide ◽  
Metal Complex ◽  
Fluorescent Probes ◽  
Recent Progress ◽  
Biological Systems ◽  
Living Cells ◽  
Significant Progress ◽  
The Past

This article reviews the significant progress of novel fluorescent probes used for imaging NO in living cells and animals during the past five years.

Effort perception

2013 ◽  
Author(s):  
Kevin L. Lamb ◽  
Gaynor Parfitt ◽  
Roger G. Eston
Keyword(s):  
Current Status ◽  
Significant Progress ◽  
Validity And Reliability ◽  
Effort Perception ◽  
The Past ◽  
Made In

Prior to 2000, most investigators had conducted their research in the same vein as that performed in greater volume on adults, and appealed for progress in this regard. While significant progress has been made in the intervening years, there remains, regrettably, a lack of consensus in terms of how data should be gathered (which tools and protocols are appropriate) and analysed statistically, making interpretations of validity and reliability quite difficult. In the past 10 years existing scales have been refined and ‘new’ ones have been constructed and promoted across a range of exercise modalities. Chapter 11 describes these advances and controversies and present the current status of the application of effort perception research in the paediatric exercise domain.

scholarly journals Recent progress in hadronic light-by-light scattering

2022 ◽  
Vol 258 ◽  
pp. 06004
Author(s):  
Martin Hoferichter
Keyword(s):  
Light Scattering ◽  
Lattice Qcd ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Recent Progress ◽  
Data Driven ◽  
Significant Progress

In recent years, significant progress in the calculation of the HLbL contribution to the anomalous magnetic moment of the muon has been achieved both with data-driven methods and in lattice QCD. In these proceedings I will discuss current developments aimed at controlling HLbL scattering at the level of 10%, as required for the final precision of the Fermilab E989 experiment.

Sandwich complexes of naphthalocyanine with the rare earth metals

2003 ◽  
Vol 07 (07) ◽  
pp. 459-473 ◽  
Author(s):  
Jianzhuang Jiang ◽  
Wei Liu ◽  
Dennis P. Arnold
Keyword(s):  
Rare Earth ◽  
Recent Progress ◽  
Rare Earth Metals ◽  
Electron System ◽  
Current Status ◽  
Important Class ◽  
Sandwich Complexes ◽  
The Past ◽  
Significant Research ◽  
Sandwich Type

Over the past two decades and in particular the past five years, numerous sandwich-type rare earth complexes containing naphthalocyanine ligands have been synthesized. The more extended delocalized π-electron system of naphthalocyanine in comparison with phthalocyanine generates unique physical, spectroscopic, electrochemical and photoelectrochemical properties which have aroused significant research interest in these compounds. This review summarizes recent progress in research on this important class of molecular materials and overviews the current status of the field.

Advances In Asthma Care

2003 ◽  
Vol 1 (1) ◽  
pp. 87-90 ◽  
Author(s):  
Chris Garvey
Keyword(s):  
Healthcare Costs ◽  
Professional Organizations ◽  
Current Status ◽  
Asthma Care ◽  
Advanced Level ◽  
Clinical Criteria ◽  
Asthma Knowledge ◽  
The Past ◽  
The Us ◽  
Examination Process

Asthma rates in the US have risen during the past 25 years, as have asthma-related morbidity and healthcare costs. Professional organizations involved in asthma care have identified the need to assure that an advanced level of asthma knowledge and skill is available to patients with asthma, their families, and insurers. This need led to development of the certification for asthma educators. The Certified Asthma Educator (AE-C) must meet specific clinical criteria and pass a standardized examination designed to evaluate knowledge and skill for providing competent asthma education and coordination. The development and current status of the Certified Asthma Educator examination process and content are discussed, as are goals of the certification

Water resources management in Greece: current status and prospective outlook

1995 ◽  
Vol 32 (9-10) ◽  
pp. 267-272 ◽  
Author(s):  
A. Angelakis ◽  
E. Diamadopoulos
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Water Demand ◽  
Treatment Plant ◽  
Current Status ◽  
Reclaimed Wastewater ◽  
Resources Management ◽  
The Past ◽  
Precipitation Water ◽  
Pollution Loads

The basic aim of this paper is to present the existing conditions and problems of water resources management in Greece. Water demand has increased tremendously over the past 30 years. Despite adequate precipitation, water imbalance is often experienced, due to temporal and regional variations of the precipitation, the increased water demand during the summer months and the difficulty of transporting water due to the mountainous terrain. Integration of reclaimed wastewater originating from the wastewater treatment plant effluents into the water resources management is proposed. This plan exhibits the potential for reducing the pollution loads entering sea or inland waters, while at the same time providing water for irrigation.

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