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Related papers: The $\rho$ meson in hot hadron matter and low mass…

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The $\rho$ spectral function at finite temperature calculated using the real-time formalism of thermal field theory is used to evaluate the low mass dilepton spectra. The analytic structure of the $\rho$ propagator is studied and…

Nuclear Theory · Physics 2015-05-19 Sabyasachi Ghosh , Sourav Sarkar , Jan-e Alam

The rate of dilepton emission from a magnetized hot hadronic medium is calculated in the framework of real time formalism of finite temperature field theory. We evaluate the one loop self-energy of neutral rho-meson containing…

High Energy Physics - Phenomenology · Physics 2023-03-07 Rajkumar Mondal , Nilanjan Chaudhuri , Snigdha Ghosh , Sourav Sarkar , Pradip Roy

We give a brief survey of theoretical evaluations of light vector mesons in hadronic matter, focusing on results from hadronic many-body theory. We emphasize the importance of imposing model constraints in obtaining reliable results for the…

High Energy Physics - Phenomenology · Physics 2011-08-04 Ralf Rapp , Hendrik van Hees , Trenton Strong

A detailed study of the analytic structure of 1-loop self energy graphs for neutral and charged $\rho$ mesons is presented at finite temperature and arbitrary magnetic field using the real time formalism of thermal field theory. The…

High Energy Physics - Phenomenology · Physics 2018-01-03 Snigdha Ghosh , Arghya Mukherjee , Mahatsab Mandal , Sourav Sarkar , Pradip Roy

The $\rho$ meson self-energy in nuclear matter from baryonic loops is analysed in the real time formulation of field theory at finite temperature and density. The discontinuities across the branch cuts of the self-energy function are…

Nuclear Theory · Physics 2011-09-14 Sabyasachi Ghosh , Sourav Sarkar

Recent progress of lattice investigations in thermal physics is summarized in this contribution. Hadronic spectral functions can be reconstructed from correlation functions in Euclidean time based on the Maximum Entropy Method without a…

High Energy Physics - Lattice · Physics 2007-05-23 Ines Wetzorke

The rho and omega meson self-energy at finite temperature and baryon density have been analysed for an exhaustive set of mesonic and baryonic loops in the real time formulation of thermal field theory. The large enhancement of spectral…

Nuclear Theory · Physics 2015-06-04 Sourav Sarkar , Sabyasachi Ghosh

We analyse the structure of one-loop self-energy graphs for the rho meson in real time formulation of finite temperature field theory. We find the discontinuities of these graphs across the unitary and the Landau cuts. These contributions…

High Energy Physics - Phenomenology · Physics 2011-01-20 Sabyasachi Ghosh , S. Mallik , Sourav Sarkar

We study the azimuthal angle and transverse momentum dependence of dilepton production from hot and magnetized hadronic matter using $\rho^0$-meson dominance. The thermomagnetic spectral function of the $\rho^0$ is evaluated using the real…

High Energy Physics - Phenomenology · Physics 2023-12-12 Rajkumar Mondal , Nilanjan Chaudhuri , Snigdha Ghosh , Sourav Sarkar , Pradip Roy

A quantitative evaluation of dilepton sources in heavy-ion reactions is performed taking into account both thermal and non-thermal production mechanisms. The hadronic thermal emission rate is based on an electromagnetic current-correlation…

High Energy Physics - Phenomenology · Physics 2011-02-15 Hendrik van Hees , Ralf Rapp

In the last years much work has been done to learn about the properties of the $\rho$-meson in nuclear matter. In a calculation of the in-medium spectralfunction of the $\rho$ we find that it is strongly modified by baryonic resonances,…

Nuclear Theory · Physics 2007-05-23 M. Post , W. Peters , U. Mosel

The modification of the width of the rho meson due to in-medium decays and collisions is evaluated. In high temperature and/or high density hadronic matter, the collision width is much larger than the one-loop decay width. The large width…

Nuclear Theory · Physics 2015-06-26 Song Gao , Charles Gale , Christoph Ernst , Horst Stöcker , Walter Greiner

The photon and dilepton emission rates from quark gluon plasma and hot hadronic matter have been evaluated. The in-medium modifications of the particles appearing in the internal loop of the self energy diagram are taken into account by…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jan-e Alam , Sourav Sarkar , Pradip Roy , T. Hatsuda , Bikash Sinha

Using effective meson Lagrangians we study the interaction of rho mesons in a hot baryon-free system. Various mesonic resonances in direct $s$-channel reactions are investigated employing standard self-energy techniques, including new…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. Rapp , C. Gale

We study the $\rho$-meson spectral function in hot nuclear matter by taking into account the isospin-symmetric pion and the nucleon loops within the quantum hadrodynamics (QHD) model as well as using an effective chiral SU(3) model. The…

Nuclear Theory · Physics 2015-05-19 P. C. Raje Bhageerathi , Amruta Mishra

The spectral function of rho meson in hot/dense hadronic matter is studied by taking into account the nucleon-loop on quantum hadrondynamics model level. Different from the hot pion gas effect which changes the spectral function slightly,…

Nuclear Theory · Physics 2009-11-07 Ji-sheng Chen , Jia-rong Li , Peng-fei Zhuang

The formalism of photon and dilepton productions in a thermal bath are discussed in the frame work of finite temperature field theory. The emission rate has been expressed in terms of the discontinuities or imaginary part of the photon self…

Nuclear Theory · Physics 2016-01-07 Jan-e Alam , Sourav Sarkar , Pradip Roy , Bikash Sinha

Employing thermal dilepton rates based on medium-modified electromagnetic correlation functions we show that recent dimuon spectra of the NA60 collaboration in central In-In collisions at the CERN-SPS can be understood in terms of radiation…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hendrik van Hees , Ralf Rapp

The NA60 experiment at the CERN SPS has studied muon-pair production in 158A GeV In-In collisions. The unprecedented precision of the data has allowed to isolate a strong excess of pairs above the known sources in the whole invariant mass…

Nuclear Experiment · Physics 2019-08-14 Hans J. Specht

We predict dilepton invariant-mass spectra for central 5.5 ATeV Pb-Pb collisions at LHC. Hadronic emission in the low-mass region is calculated using in-medium spectral functions of light vector mesons within hadronic many-body theory. In…

High Energy Physics - Phenomenology · Physics 2008-04-22 H. van Hees , R. Rapp
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