Observing many-body effects on lepton pair production from low mass enhancement and flow at RHIC and LHC energies
The ρ 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 ρ propagator is studied and contributions to the dilepton yield in the region below the bare ρ peak from the...
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| Veröffentlicht in: | The European physical journal. C, Particles and fields Particles and fields, 2011-09, Vol.71 (9), p.1-14, Article 1760 |
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| container_title | The European physical journal. C, Particles and fields |
| container_volume | 71 |
| creator | Ghosh, Sabyasachi Sarkar, Sourav Alam, Jan-e |
| description | The
ρ
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
ρ
propagator is studied and contributions to the dilepton yield in the region below the bare
ρ
peak from the different cuts in the spectral function are discussed. The space-time integrated yield shows significant enhancement in the region below the bare
ρ
peak in the invariant mass spectra. It is argued that the variation of the inverse slope of the transverse mass (
M
T
) distribution can be used as an efficient tool to predict the presence of two different phases of the matter during the evolution of the system. The sensitivities of the effective temperature obtained from the slopes of the
M
T
spectra to the medium effects are studied. |
| doi_str_mv | 10.1140/epjc/s10052-011-1760-9 |
| format | Article |
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ρ
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
ρ
propagator is studied and contributions to the dilepton yield in the region below the bare
ρ
peak from the different cuts in the spectral function are discussed. The space-time integrated yield shows significant enhancement in the region below the bare
ρ
peak in the invariant mass spectra. It is argued that the variation of the inverse slope of the transverse mass (
M
T
) distribution can be used as an efficient tool to predict the presence of two different phases of the matter during the evolution of the system. The sensitivities of the effective temperature obtained from the slopes of the
M
T
spectra to the medium effects are studied.</description><identifier>ISSN: 1434-6044</identifier><identifier>EISSN: 1434-6052</identifier><identifier>DOI: 10.1140/epjc/s10052-011-1760-9</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Astronomy ; Astrophysics and Cosmology ; Elementary Particles ; Evolution ; Exact sciences and technology ; Field theory ; Formalism ; Hadrons ; Heavy Ions ; Invariants ; Inverse ; Large Hadron Collider ; Leptons ; Mass spectra ; Mass spectroscopy ; Mathematical analysis ; Measurement Science and Instrumentation ; Nuclear Energy ; Nuclear Physics ; Pair production ; Phases ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Regular Article - Theoretical Physics ; Spectra ; String Theory ; The physics of elementary particles and fields</subject><ispartof>The European physical journal. C, Particles and fields, 2011-09, Vol.71 (9), p.1-14, Article 1760</ispartof><rights>Springer-Verlag / Società Italiana di Fisica 2011</rights><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2011 Springer</rights><rights>The European Physical Journal C is a copyright of Springer, (2011). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c500t-2eedf758beb9233ddc6ae0ddc119a56cfc8e0fdf6ea0cf5df7172d6e69686ef73</citedby><cites>FETCH-LOGICAL-c500t-2eedf758beb9233ddc6ae0ddc119a56cfc8e0fdf6ea0cf5df7172d6e69686ef73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1140/epjc/s10052-011-1760-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://doi.org/10.1140/epjc/s10052-011-1760-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27922,27923,41118,41486,42187,42555,51317,51574</link.rule.ids><linktorsrc>$$Uhttps://doi.org/10.1140/epjc/s10052-011-1760-9$$EView_record_in_Springer_Nature$$FView_record_in_$$GSpringer_Nature</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24708962$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ghosh, Sabyasachi</creatorcontrib><creatorcontrib>Sarkar, Sourav</creatorcontrib><creatorcontrib>Alam, Jan-e</creatorcontrib><title>Observing many-body effects on lepton pair production from low mass enhancement and flow at RHIC and LHC energies</title><title>The European physical journal. C, Particles and fields</title><addtitle>Eur. Phys. J. C</addtitle><description>The
ρ
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
ρ
propagator is studied and contributions to the dilepton yield in the region below the bare
ρ
peak from the different cuts in the spectral function are discussed. The space-time integrated yield shows significant enhancement in the region below the bare
ρ
peak in the invariant mass spectra. It is argued that the variation of the inverse slope of the transverse mass (
M
T
) distribution can be used as an efficient tool to predict the presence of two different phases of the matter during the evolution of the system. The sensitivities of the effective temperature obtained from the slopes of the
M
T
spectra to the medium effects are studied.</description><subject>Astronomy</subject><subject>Astrophysics and Cosmology</subject><subject>Elementary Particles</subject><subject>Evolution</subject><subject>Exact sciences and technology</subject><subject>Field theory</subject><subject>Formalism</subject><subject>Hadrons</subject><subject>Heavy Ions</subject><subject>Invariants</subject><subject>Inverse</subject><subject>Large Hadron Collider</subject><subject>Leptons</subject><subject>Mass spectra</subject><subject>Mass spectroscopy</subject><subject>Mathematical analysis</subject><subject>Measurement Science and Instrumentation</subject><subject>Nuclear Energy</subject><subject>Nuclear Physics</subject><subject>Pair production</subject><subject>Phases</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Regular Article - Theoretical Physics</subject><subject>Spectra</subject><subject>String Theory</subject><subject>The physics of elementary particles and fields</subject><issn>1434-6044</issn><issn>1434-6052</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFkk1v1DAQhiMEEqXwF5AlhASHtON82MmxWkF3pZUqFThbXmccvErs1HaA_fd1SFVULpUPY888r-2x3yx7T-GC0goucTqqy0AB6iIHSnPKGeTti-yMVmWVs5R--TivqtfZmxCOAFBU0JxldzeHgP6XsT0ZpT3lB9edCGqNKgbiLBlwiilM0ngyedfNKpq01t6NZHC_kygEgvantApHtJFI2xG9VGQkt9vd5m9iv90kCH1vMLzNXmk5BHz3EM-zH1-_fN9s8_3N9W5ztc9VDRDzArHTvG4OeGiLsuw6xSRCCpS2smZKqwZBd5qhBKXrxFJedAxZyxqGmpfn2ad133TtuxlDFKMJCodBWnRzEJQxAMbTEz6PVmXLywYamtAP_6FHN3ubGhFF0VZQQsuXDS9WqpcDCmO1i16qNDocjXIWtUn5q5KVNWVA2yT4_ESQmIh_Yi_nEMTu2-1Tlq2s8i4Ej1pM3ozSnwQFsThCLI4QqyNEcoRYHCEW4ceHu8ug5KB9-jQTHtVFxaFpWZE4vnIhlWyP_l-Pz5xwDw5syLM</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>Ghosh, Sabyasachi</creator><creator>Sarkar, Sourav</creator><creator>Alam, Jan-e</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>7U5</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20110901</creationdate><title>Observing many-body effects on lepton pair production from low mass enhancement and flow at RHIC and LHC energies</title><author>Ghosh, Sabyasachi ; 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ρ
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
ρ
propagator is studied and contributions to the dilepton yield in the region below the bare
ρ
peak from the different cuts in the spectral function are discussed. The space-time integrated yield shows significant enhancement in the region below the bare
ρ
peak in the invariant mass spectra. It is argued that the variation of the inverse slope of the transverse mass (
M
T
) distribution can be used as an efficient tool to predict the presence of two different phases of the matter during the evolution of the system. The sensitivities of the effective temperature obtained from the slopes of the
M
T
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| ispartof | The European physical journal. C, Particles and fields, 2011-09, Vol.71 (9), p.1-14, Article 1760 |
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| source | Springer Nature OA Free Journals |
| subjects | Astronomy Astrophysics and Cosmology Elementary Particles Evolution Exact sciences and technology Field theory Formalism Hadrons Heavy Ions Invariants Inverse Large Hadron Collider Leptons Mass spectra Mass spectroscopy Mathematical analysis Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Pair production Phases Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Regular Article - Theoretical Physics Spectra String Theory The physics of elementary particles and fields |
| title | Observing many-body effects on lepton pair production from low mass enhancement and flow at RHIC and LHC energies |
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