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Title: QCD PHASE TRANSITIONS-VOLUME 15.

Abstract

The title of the workshop, ''The QCD Phase Transitions'', in fact happened to be too narrow for its real contents. It would be more accurate to say that it was devoted to different phases of QCD and QCD-related gauge theories, with strong emphasis on discussion of the underlying non-perturbative mechanisms which manifest themselves as all those phases. Before we go to specifics, let us emphasize one important aspect of the present status of non-perturbative Quantum Field Theory in general. It remains true that its studies do not get attention proportional to the intellectual challenge they deserve, and that the theorists working on it remain very fragmented. The efforts to create Theory of Everything including Quantum Gravity have attracted the lion share of attention and young talent. Nevertheless, in the last few years there was also a tremendous progress and even some shift of attention toward emphasis on the unity of non-perturbative phenomena. For example, we have seen some. efforts to connect the lessons from recent progress in Supersymmetric theories with that in QCD, as derived from phenomenology and lattice. Another example is Maldacena conjecture and related development, which connect three things together, string theory, super-gravity and the (N=4) supersymmetric gaugemore » theory. Although the progress mentioned is remarkable by itself, if we would listen to each other more we may have chance to strengthen the field and reach better understanding of the spectacular non-perturbative physics.« less

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (US)
Sponsoring Org.:
BNL AND RIKEN (US)
OSTI Identifier:
11450
Report Number(s):
BNL-52561; KB0201
R&D Project: PO03; KB0201; TRN: AH200128%%765
DOE Contract Number:
AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: RIKEN RESEARCH CENTER PROCEEDINGS WORKSHOP ON QCD PHASE TRANSITIONS, BROOKHAVEN NATIONAL LABORATORY, UPTON, NY (US), 11/04/1998--11/07/1998; Other Information: PBD: 4 Nov 1998
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BNL; PHYSICS; QUANTUM CHROMODYNAMICS; QUANTUM FIELD THEORY; QUANTUM GRAVITY

Citation Formats

SCHAFER,T. QCD PHASE TRANSITIONS-VOLUME 15.. United States: N. p., 1998. Web.
SCHAFER,T. QCD PHASE TRANSITIONS-VOLUME 15.. United States.
SCHAFER,T. Wed . "QCD PHASE TRANSITIONS-VOLUME 15.". United States. doi:. https://www.osti.gov/servlets/purl/11450.
@article{osti_11450,
title = {QCD PHASE TRANSITIONS-VOLUME 15.},
author = {SCHAFER,T.},
abstractNote = {The title of the workshop, ''The QCD Phase Transitions'', in fact happened to be too narrow for its real contents. It would be more accurate to say that it was devoted to different phases of QCD and QCD-related gauge theories, with strong emphasis on discussion of the underlying non-perturbative mechanisms which manifest themselves as all those phases. Before we go to specifics, let us emphasize one important aspect of the present status of non-perturbative Quantum Field Theory in general. It remains true that its studies do not get attention proportional to the intellectual challenge they deserve, and that the theorists working on it remain very fragmented. The efforts to create Theory of Everything including Quantum Gravity have attracted the lion share of attention and young talent. Nevertheless, in the last few years there was also a tremendous progress and even some shift of attention toward emphasis on the unity of non-perturbative phenomena. For example, we have seen some. efforts to connect the lessons from recent progress in Supersymmetric theories with that in QCD, as derived from phenomenology and lattice. Another example is Maldacena conjecture and related development, which connect three things together, string theory, super-gravity and the (N=4) supersymmetric gauge theory. Although the progress mentioned is remarkable by itself, if we would listen to each other more we may have chance to strengthen the field and reach better understanding of the spectacular non-perturbative physics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Nov 04 00:00:00 EST 1998},
month = {Wed Nov 04 00:00:00 EST 1998}
}

Conference:
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  • The title of the workshop, ''The QCD Phase Transitions'', in fact happened to be too narrow for its real contents. It would be more accurate to say that it was devoted to different phases of QCD and QCD-related gauge theories, with strong emphasis on discussion of the underlying non-perturbative mechanisms which manifest themselves as all those phases. Before we go to specifics, let us emphasize one important aspect of the present status of non-perturbative Quantum Field Theory in general. It remains true that its studies do not get attention proportional to the intellectual challenge they deserve, and that the theoristsmore » working on it remain very fragmented. The efforts to create Theory of Everything including Quantum Gravity have attracted the lion share of attention and young talent. Nevertheless, in the last few years there was also a tremendous progress and even some shift of attention toward emphasis on the unity of non-perturbative phenomena. For example, we have seen some efforts to connect the lessons from recent progress in Supersymmetric theories with that in QCD, as derived from phenomenology and lattice. Another example is Maldacena conjecture and related development, which connect three things together, string theory, super-gravity and the (N=4) supersymmetric gauge theory. Although the progress mentioned is remarkable by itself, if we would listen to each other more we may have chance to strengthen the field and reach better understanding of the spectacular non-perturbative physics.« less
  • A brief survey of the latest results in the field of finite temperature lattice quantum chromodynamics (QCD) is presented with special emphasis on simulations that incorporate the dynamical fermions. For the theory with four light flavors, three different apparently unequivalent methods yield results in quantitative agreement with each other. Recent attempts to obtain nonperturbative estimates of the velocity of sound in both the hadronic and quark-gluon phase are summarized along with the results.
  • Recent results in the field of finite temperature lattice quantum chromodynamics (QCD) are presented with special emphasis on comparison of the different methods used to incorporate the dynamical fermions. Attempts to obtain a nonperturbative estimate of the velocity of sound in both the hadronic and quark-gluon phase are summarized along with the results. 15 refs., 7 figs.
  • This paper contains viewgraphs on quantum chromodynamic phase transformations during heavy ion collisions. Some topics briefly described are: finite T transitions of I molecule pairs; finite density transitions of diquarks polymers; and the softtest point of the equation of state as a source of discontinuous behavior as a function of collision energy or centrality.
  • I describe the status of calculations of N-N* transition form factors in lattice QCD, and the prospects for future calculations. I emphasise the need to reliably delineate the states in the spectrum, and the progress that has been made by the Hadron Spectrum Collaboration in so doing.