Testing thermal photon and dilepton rates
Abstract We confront the thermal NLO vector spectral function (both the transverse and longitudinal channel with respect to spatial momentum, both above and below the light cone) with continuum-extrapolated lattice data (both quenched and with N f = 2, at T ∼ 1.2T c). The perturbative side incorpora...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP11(2019)144 |
| _version_ | 1819243540986724352 |
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| author | G. Jackson M. Laine |
| author_facet | G. Jackson M. Laine |
| author_sort | G. Jackson |
| collection | DOAJ |
| description | Abstract We confront the thermal NLO vector spectral function (both the transverse and longitudinal channel with respect to spatial momentum, both above and below the light cone) with continuum-extrapolated lattice data (both quenched and with N f = 2, at T ∼ 1.2T c). The perturbative side incorporates new results, whose main features are summarized. The resolution of the lattice data is good enough to constrain the scale choice of α s on the perturbative side. The comparison supports the previous indication that the true spectral function falls below the resummed NLO one in a substantial frequency domain. Our results may help to scrutinize direct spectral reconstruction attempts from lattice QCD. |
| first_indexed | 2024-12-23T14:57:20Z |
| format | Article |
| id | doaj.art-009d7690e6514bc68f5f5e90e25d1a5e |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-23T14:57:20Z |
| publishDate | 2019-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-009d7690e6514bc68f5f5e90e25d1a5e2022-12-21T17:42:44ZengSpringerOpenJournal of High Energy Physics1029-84792019-11-0120191111810.1007/JHEP11(2019)144Testing thermal photon and dilepton ratesG. Jackson0M. Laine1AEC, Institute for Theoretical Physics, University of BernAEC, Institute for Theoretical Physics, University of BernAbstract We confront the thermal NLO vector spectral function (both the transverse and longitudinal channel with respect to spatial momentum, both above and below the light cone) with continuum-extrapolated lattice data (both quenched and with N f = 2, at T ∼ 1.2T c). The perturbative side incorporates new results, whose main features are summarized. The resolution of the lattice data is good enough to constrain the scale choice of α s on the perturbative side. The comparison supports the previous indication that the true spectral function falls below the resummed NLO one in a substantial frequency domain. Our results may help to scrutinize direct spectral reconstruction attempts from lattice QCD.http://link.springer.com/article/10.1007/JHEP11(2019)144Thermal Field TheoryLattice QCDPerturbative QCDQuark-Gluon Plasma |
| spellingShingle | G. Jackson M. Laine Testing thermal photon and dilepton rates Journal of High Energy Physics Thermal Field Theory Lattice QCD Perturbative QCD Quark-Gluon Plasma |
| title | Testing thermal photon and dilepton rates |
| title_full | Testing thermal photon and dilepton rates |
| title_fullStr | Testing thermal photon and dilepton rates |
| title_full_unstemmed | Testing thermal photon and dilepton rates |
| title_short | Testing thermal photon and dilepton rates |
| title_sort | testing thermal photon and dilepton rates |
| topic | Thermal Field Theory Lattice QCD Perturbative QCD Quark-Gluon Plasma |
| url | http://link.springer.com/article/10.1007/JHEP11(2019)144 |
| work_keys_str_mv | AT gjackson testingthermalphotonanddileptonrates AT mlaine testingthermalphotonanddileptonrates |