An estimate for the thermal photon rate from lattice QCD
- Publikationstyp:
- Konferenzbeitrag
- Metadaten:
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- Abstract
- We estimate the production rate of photons by the quark-gluon plasma in lattice QCD. We propose a new correlation function which provides better control over the systematic uncertainty in estimating the photon production rate at photon momenta in the range πT/2 to 2πT. The relevant Euclidean vector current correlation functions are computed with Nf = 2 Wilson clover fermions in the chirally-symmetric phase. In order to estimate the photon rate, an ill-posed problem for the vector-channel spectral function must be regularized. We use both a direct model for the spectral function and a modelindependent estimate from the Backus-Gilbert method to give an estimate for the photon rate.
- Autoren
- Harvey Meyer
- Bastian Brandt
- Anthony Francis
- Tim Harris
- Aman Steinberg
- Autoren-URL
- https://researchelements.uni-mainz.de/userprofile.html?uid=173
- DOI
- 10.1051/epjconf/201817507044
- Conference finish date
- 2018
- Zeitschrift
- Proceedings, 35th International Symposium on Lattice Field Theory (Lattice 2017) : Granada, Spain, June 18-24, 2017
- Conference place
- Granada Spain
- Name of conference
- Lattice 2017
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Herausgeber
- EPJ Web of Conferences 175, 07044 (2018)
- Herausgeber URL
- https://www.epj-conferences.org/articles/epjconf/abs/2018/10/epjconf_lattice2018_07044/epjconf_lattice2018_07044.html
- Datum der Datenerfassung
- 2023
- Conference start date
- 2018
- Titel
- An estimate for the thermal photon rate from lattice QCD
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