Thermal quarkonium physics in the pseudoscalar channel
Abstract The pseudoscalar correlator is an ideal lattice probe for thermal modifications to quarkonium spectra, given that it is not compromised by a contribution from a large transport peak. We construct a perturbative spectral function incorporating resummed thermal effects around the threshold an...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP11(2017)206 |
| _version_ | 1819069926844923904 |
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| author | Y. Burnier H.-T. Ding O. Kaczmarek A.-L. Kruse M. Laine H. Ohno H. Sandmeyer |
| author_facet | Y. Burnier H.-T. Ding O. Kaczmarek A.-L. Kruse M. Laine H. Ohno H. Sandmeyer |
| author_sort | Y. Burnier |
| collection | DOAJ |
| description | Abstract The pseudoscalar correlator is an ideal lattice probe for thermal modifications to quarkonium spectra, given that it is not compromised by a contribution from a large transport peak. We construct a perturbative spectral function incorporating resummed thermal effects around the threshold and vacuum asymptotics above the threshold, and compare the corresponding imaginary-time correlators with continuum-extrapolated lattice data for quenched SU(3) at several temperatures. Modest differences are observed, which may originate from non-perturbative mass shifts or renormalization factors, however no resonance peaks are needed for describing the quenched lattice data for charmonium at and above T ∼ 1.1T c ∼ 350 MeV. For comparison, in the bottomonium case a good description of the lattice data is obtained with a spectral function containing a single thermally broadened resonance peak. |
| first_indexed | 2024-12-21T16:57:48Z |
| format | Article |
| id | doaj.art-048efb80aa434e059bb2d0802cebcec9 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T16:57:48Z |
| publishDate | 2017-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-048efb80aa434e059bb2d0802cebcec92022-12-21T18:56:43ZengSpringerOpenJournal of High Energy Physics1029-84792017-11-0120171112710.1007/JHEP11(2017)206Thermal quarkonium physics in the pseudoscalar channelY. Burnier0H.-T. Ding1O. Kaczmarek2A.-L. Kruse3M. Laine4H. Ohno5H. Sandmeyer6Gymnase de RenensKey Laboratory of Quark & Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal UniversityKey Laboratory of Quark & Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal UniversityFakultät für Physik, Universität BielefeldAEC, ITP, University of BernCenter for Computational Sciences, University of TsukubaFakultät für Physik, Universität BielefeldAbstract The pseudoscalar correlator is an ideal lattice probe for thermal modifications to quarkonium spectra, given that it is not compromised by a contribution from a large transport peak. We construct a perturbative spectral function incorporating resummed thermal effects around the threshold and vacuum asymptotics above the threshold, and compare the corresponding imaginary-time correlators with continuum-extrapolated lattice data for quenched SU(3) at several temperatures. Modest differences are observed, which may originate from non-perturbative mass shifts or renormalization factors, however no resonance peaks are needed for describing the quenched lattice data for charmonium at and above T ∼ 1.1T c ∼ 350 MeV. For comparison, in the bottomonium case a good description of the lattice data is obtained with a spectral function containing a single thermally broadened resonance peak.http://link.springer.com/article/10.1007/JHEP11(2017)206Quark-Gluon PlasmaThermal Field TheoryLattice QCDPerturbative QCD |
| spellingShingle | Y. Burnier H.-T. Ding O. Kaczmarek A.-L. Kruse M. Laine H. Ohno H. Sandmeyer Thermal quarkonium physics in the pseudoscalar channel Journal of High Energy Physics Quark-Gluon Plasma Thermal Field Theory Lattice QCD Perturbative QCD |
| title | Thermal quarkonium physics in the pseudoscalar channel |
| title_full | Thermal quarkonium physics in the pseudoscalar channel |
| title_fullStr | Thermal quarkonium physics in the pseudoscalar channel |
| title_full_unstemmed | Thermal quarkonium physics in the pseudoscalar channel |
| title_short | Thermal quarkonium physics in the pseudoscalar channel |
| title_sort | thermal quarkonium physics in the pseudoscalar channel |
| topic | Quark-Gluon Plasma Thermal Field Theory Lattice QCD Perturbative QCD |
| url | http://link.springer.com/article/10.1007/JHEP11(2017)206 |
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