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Properties of hadron screening masses at finite baryonic density
The properties of hadron screening masses around the deconfinement phase transition at finite baryonic density can be studied by evaluating the Taylor coefficients with respect to the iso-scalar and iso-vector chemical potentials. We simulate 2-flavour lattice QCD with staggered fermions on a 12*12*...
| Autores principales: | , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2004
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2005.01.006 http://cds.cern.ch/record/798416 |
| _version_ | 1780904707304194048 |
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| author | Pushkina, Irina de Forcrand, Philippe Garcia Perez, Margarita Kim, Seyong Matsufuru, Hideo Nakamura, Atsushi Stamatescu, Ion-Olimpiu Takaishi, Tetsuya Umeda, Takashi |
| author_facet | Pushkina, Irina de Forcrand, Philippe Garcia Perez, Margarita Kim, Seyong Matsufuru, Hideo Nakamura, Atsushi Stamatescu, Ion-Olimpiu Takaishi, Tetsuya Umeda, Takashi |
| author_sort | Pushkina, Irina |
| collection | CERN |
| description | The properties of hadron screening masses around the deconfinement phase transition at finite baryonic density can be studied by evaluating the Taylor coefficients with respect to the iso-scalar and iso-vector chemical potentials. We simulate 2-flavour lattice QCD with staggered fermions on a 12*12*24*6 lattice with ma = 0.05 and 0.10 and report investigations of nucleon, pseudo-scalar and vector mesons. We present new, strong evidence that in the confining phase, the screening masses at vanishing chemical potential have significant temperature dependence, but the effect of the iso-scalar chemical potential is very small. Above the critical temperature, the second derivative terms of mesons rapidly increase as contrasted to the case of baryon. We also study the responses of the screening masses to an iso-vector chemical potential and discuss some of the issues related to the properties of hadron masses at finite density. |
| id | cern-798416 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2004 |
| record_format | invenio |
| spelling | cern-7984162023-03-14T19:12:38Zdoi:10.1016/j.physletb.2005.01.006http://cds.cern.ch/record/798416engPushkina, Irinade Forcrand, PhilippeGarcia Perez, MargaritaKim, SeyongMatsufuru, HideoNakamura, AtsushiStamatescu, Ion-OlimpiuTakaishi, TetsuyaUmeda, TakashiProperties of hadron screening masses at finite baryonic densityParticle Physics - LatticeThe properties of hadron screening masses around the deconfinement phase transition at finite baryonic density can be studied by evaluating the Taylor coefficients with respect to the iso-scalar and iso-vector chemical potentials. We simulate 2-flavour lattice QCD with staggered fermions on a 12*12*24*6 lattice with ma = 0.05 and 0.10 and report investigations of nucleon, pseudo-scalar and vector mesons. We present new, strong evidence that in the confining phase, the screening masses at vanishing chemical potential have significant temperature dependence, but the effect of the iso-scalar chemical potential is very small. Above the critical temperature, the second derivative terms of mesons rapidly increase as contrasted to the case of baryon. We also study the responses of the screening masses to an iso-vector chemical potential and discuss some of the issues related to the properties of hadron masses at finite density.The properties of hadron screening masses around the deconfinement phase transition at finite baryonic density can be studied by evaluating the Taylor coefficients with respect to the iso-scalar ( μS=μu=μd ) and iso-vector ( μV=μu=−μd ) chemical potentials, where μu and μd are u and d quark chemical potentials. We simulate 2-flavour lattice QCD with staggered fermions on a 122×24×6 lattice with ma=0.05 and 0.10 and report investigations of nucleon, pseudo-scalar and vector mesons. We present new, strong evidence that in the confining phase, the screening masses at μ=0 have significant temperature dependence, but the effect of μS is very small. Above the critical temperature, the second derivative terms of mesons rapidly increase as contrasted to the case of baryon. We also study the responses of the screening masses to an iso-vector chemical potential and discuss some of the issues related to the properties of hadron masses at finite μ .The properties of hadron screening masses around the deconfinement phase transition at finite baryonic density can be studied by evaluating the Taylor coefficients with respect to the iso-scalar and iso-vector chemical potentials. We simulate 2-flavour lattice QCD with staggered fermions on a 12*12*24*6 lattice with ma = 0.05 and 0.10 and report investigations of nucleon, pseudo-scalar and vector mesons. We present new, strong evidence that in the confining phase, the screening masses at vanishing chemical potential have significant temperature dependence, but the effect of the iso-scalar chemical potential is very small. Above the critical temperature, the second derivative terms of mesons rapidly increase as contrasted to the case of baryon. We also study the responses of the screening masses to an iso-vector chemical potential and discuss some of the issues related to the properties of hadron masses at finite density.hep-lat/0410017SWAT-415oai:cds.cern.ch:7984162004-10-13 |
| spellingShingle | Particle Physics - Lattice Pushkina, Irina de Forcrand, Philippe Garcia Perez, Margarita Kim, Seyong Matsufuru, Hideo Nakamura, Atsushi Stamatescu, Ion-Olimpiu Takaishi, Tetsuya Umeda, Takashi Properties of hadron screening masses at finite baryonic density |
| title | Properties of hadron screening masses at finite baryonic density |
| title_full | Properties of hadron screening masses at finite baryonic density |
| title_fullStr | Properties of hadron screening masses at finite baryonic density |
| title_full_unstemmed | Properties of hadron screening masses at finite baryonic density |
| title_short | Properties of hadron screening masses at finite baryonic density |
| title_sort | properties of hadron screening masses at finite baryonic density |
| topic | Particle Physics - Lattice |
| url | https://dx.doi.org/10.1016/j.physletb.2005.01.006 http://cds.cern.ch/record/798416 |
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