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NA60 and BR scaling
In connection with the claim made at Quark Matter 2005 Conference that Brown-Rho scaling is ruled out by NA60 data we consider dimuon production from semi-central In+In collisions in a full dynamical model. It is shown that allowing only for density-dependent $\rho$-mass modification reasonably repr...
Autores principales: | , |
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Lenguaje: | eng |
Publicado: |
2005
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevC.73.021902 http://cds.cern.ch/record/887481 |
_version_ | 1780908378691731456 |
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author | Skokov, V V Toneev, V D |
author_facet | Skokov, V V Toneev, V D |
author_sort | Skokov, V V |
collection | CERN |
description | In connection with the claim made at Quark Matter 2005 Conference that Brown-Rho scaling is ruled out by NA60 data we consider dimuon production from semi-central In+In collisions in a full dynamical model. It is shown that allowing only for density-dependent $\rho$-mass modification reasonably reproduces the shape of dimuon invariant mass spectra. Additional inclusion of the temperature-dependent modification factor shifts the spectra maximum towards lower invariant masses making calculation results incompatible with data. Further study is needed to disentangle BR dropping $\rho$ mass scaling and strong broadening. |
id | cern-887481 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2005 |
record_format | invenio |
spelling | cern-8874812019-09-30T06:29:59Zdoi:10.1103/PhysRevC.73.021902http://cds.cern.ch/record/887481engSkokov, V VToneev, V DNA60 and BR scalingNuclear Physics - TheoryIn connection with the claim made at Quark Matter 2005 Conference that Brown-Rho scaling is ruled out by NA60 data we consider dimuon production from semi-central In+In collisions in a full dynamical model. It is shown that allowing only for density-dependent $\rho$-mass modification reasonably reproduces the shape of dimuon invariant mass spectra. Additional inclusion of the temperature-dependent modification factor shifts the spectra maximum towards lower invariant masses making calculation results incompatible with data. Further study is needed to disentangle BR dropping $\rho$ mass scaling and strong broadening.nucl-th/0509085oai:cds.cern.ch:8874812005-09-28 |
spellingShingle | Nuclear Physics - Theory Skokov, V V Toneev, V D NA60 and BR scaling |
title | NA60 and BR scaling |
title_full | NA60 and BR scaling |
title_fullStr | NA60 and BR scaling |
title_full_unstemmed | NA60 and BR scaling |
title_short | NA60 and BR scaling |
title_sort | na60 and br scaling |
topic | Nuclear Physics - Theory |
url | https://dx.doi.org/10.1103/PhysRevC.73.021902 http://cds.cern.ch/record/887481 |
work_keys_str_mv | AT skokovvv na60andbrscaling AT toneevvd na60andbrscaling |