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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...

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Detalles Bibliográficos
Autores principales: Skokov, V V, Toneev, V D
Lenguaje:eng
Publicado: 2005
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevC.73.021902
http://cds.cern.ch/record/887481
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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
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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