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Nuclear physics from strong coupling QCD

The strong coupling limit (beta_gauge = 0) of QCD offers a number of remarkable research possibilities, of course at the price of large lattice artifacts. Here, we determine the complete phase diagram as a function of temperature T and baryon chemical potential mu_B, for one flavor of staggered ferm...

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Detalles Bibliográficos
Autores principales: Fromm, Michael, de Forcrand, Philippe
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:http://cds.cern.ch/record/1228725
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author Fromm, Michael
de Forcrand, Philippe
author_facet Fromm, Michael
de Forcrand, Philippe
author_sort Fromm, Michael
collection CERN
description The strong coupling limit (beta_gauge = 0) of QCD offers a number of remarkable research possibilities, of course at the price of large lattice artifacts. Here, we determine the complete phase diagram as a function of temperature T and baryon chemical potential mu_B, for one flavor of staggered fermions in the chiral limit, with emphasis on the determination of a tricritical point and on the T ~ 0 transition to nuclear matter. The latter is known to happen for mu_B substantially below the baryon mass, indicating strong nuclear interactions in QCD at infinite gauge coupling. This leads us to studying the properties of nuclear matter from first principles. We determine the nucleon-nucleon potential in the strong coupling limit, as well as masses m_A of nuclei as a function of their atomic number A. Finally, we clarify the origin of nuclear interactions at strong coupling, which turns out to be a steric effect.
id cern-1228725
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
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spelling cern-12287252019-09-30T06:29:59Zhttp://cds.cern.ch/record/1228725engFromm, Michaelde Forcrand, PhilippeNuclear physics from strong coupling QCDParticle Physics - LatticeThe strong coupling limit (beta_gauge = 0) of QCD offers a number of remarkable research possibilities, of course at the price of large lattice artifacts. Here, we determine the complete phase diagram as a function of temperature T and baryon chemical potential mu_B, for one flavor of staggered fermions in the chiral limit, with emphasis on the determination of a tricritical point and on the T ~ 0 transition to nuclear matter. The latter is known to happen for mu_B substantially below the baryon mass, indicating strong nuclear interactions in QCD at infinite gauge coupling. This leads us to studying the properties of nuclear matter from first principles. We determine the nucleon-nucleon potential in the strong coupling limit, as well as masses m_A of nuclei as a function of their atomic number A. Finally, we clarify the origin of nuclear interactions at strong coupling, which turns out to be a steric effect.arXiv:0912.2524CERN-PH-TH-2009-217oai:cds.cern.ch:12287252009-12-15
spellingShingle Particle Physics - Lattice
Fromm, Michael
de Forcrand, Philippe
Nuclear physics from strong coupling QCD
title Nuclear physics from strong coupling QCD
title_full Nuclear physics from strong coupling QCD
title_fullStr Nuclear physics from strong coupling QCD
title_full_unstemmed Nuclear physics from strong coupling QCD
title_short Nuclear physics from strong coupling QCD
title_sort nuclear physics from strong coupling qcd
topic Particle Physics - Lattice
url http://cds.cern.ch/record/1228725
work_keys_str_mv AT frommmichael nuclearphysicsfromstrongcouplingqcd
AT deforcrandphilippe nuclearphysicsfromstrongcouplingqcd