dorsal/arxiv
View SchemaHadrons in Dense Matter and Medium Effects in Relativistic Heavy-Ion Collisions
| Authors | G. Q. Li |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9710008 |
| URL | https://arxiv.org/abs/nucl-th/9710008 |
Abstract
Theoretical and experimental studies of hot and/or dense matter, such as is created in high-energy heavy-ion collisions, and encountered in compact objects in astrophysics, constitute one of the most active frontiers in nuclear physics. In these Lectures, we discuss various approaches to the description of hot and/or dense matter, including the simple Skyrme-type parameterization and relativistic Walecka-type models, as well as microscopic Dirac-Brueckner and QCD sum rule approaches. As density and/or temperature of the hadronic system increases, chiral symmetry is gradually restored, as indicated by the decrease of quark condensate. This has profound effects on the properties of hadrons, especially their masses. We review various theoretical predictions for hadron properties in dense matter. Experimentally, possible medium modifications of hadron properties can be studied through the measurements of particle spectra, flow, and particularly, electromagnetic observables. Particle production, especially the production of rare particles such as kaons, vector mesons, and antiparticles, provides useful insight into heavy-ion collision dynamics, and hadron properties in dense matter. Collective flows of various kinds are important observables in heavy-ion collisions. They probe essentially the entire reaction process, and thus are very useful for the determination of the reaction dynamics. They also reflect the properties of hadrons in dense matter. Electromagnetic signals are considered penetrating probes that may carry undistorted information about the early stage of high-energy heavy-ion collisions. We discuss various theoretical calculations of dilepton and photon production in heavy-ion collisions at SPS energies and various medium effects that have been proposed to explain the observed low-mass dilepton enhancement.
{
"annotation_id": "576defc3-2123-463f-8f4b-ba45a91d8b58",
"date_created": "2026-03-02T18:00:21.974000Z",
"date_modified": "2026-03-02T18:00:21.974000Z",
"file_hash": "5f51b71671b0ae4d72c9f8b634bfced3adf9ac44c723c359fdebfd017233e5ab",
"private": false,
"record": {
"abstract": "Theoretical and experimental studies of hot and/or dense matter, such as is\ncreated in high-energy heavy-ion collisions, and encountered in compact objects\nin astrophysics, constitute one of the most active frontiers in nuclear\nphysics. In these Lectures, we discuss various approaches to the description of\nhot and/or dense matter, including the simple Skyrme-type parameterization and\nrelativistic Walecka-type models, as well as microscopic Dirac-Brueckner and\nQCD sum rule approaches. As density and/or temperature of the hadronic system\nincreases, chiral symmetry is gradually restored, as indicated by the decrease\nof quark condensate. This has profound effects on the properties of hadrons,\nespecially their masses. We review various theoretical predictions for hadron\nproperties in dense matter. Experimentally, possible medium modifications of\nhadron properties can be studied through the measurements of particle spectra,\nflow, and particularly, electromagnetic observables. Particle production,\nespecially the production of rare particles such as kaons, vector mesons, and\nantiparticles, provides useful insight into heavy-ion collision dynamics, and\nhadron properties in dense matter. Collective flows of various kinds are\nimportant observables in heavy-ion collisions. They probe essentially the\nentire reaction process, and thus are very useful for the determination of the\nreaction dynamics. They also reflect the properties of hadrons in dense matter.\nElectromagnetic signals are considered penetrating probes that may carry\nundistorted information about the early stage of high-energy heavy-ion\ncollisions. We discuss various theoretical calculations of dilepton and photon\nproduction in heavy-ion collisions at SPS energies and various medium effects\nthat have been proposed to explain the observed low-mass dilepton enhancement.",
"arxiv_id": "nucl-th/9710008",
"authors": [
"G. Q. Li"
],
"categories": [
"nucl-th"
],
"title": "Hadrons in Dense Matter and Medium Effects in Relativistic Heavy-Ion Collisions",
"url": "https://arxiv.org/abs/nucl-th/9710008"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "3aebe429-d0e5-41b8-8946-0b21d0daba83",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}