Static quark-antiquark pairs at finite temperature
By N. Brambilla, J. Ghiglieri, P. Petreczky, A. Vairo. 2008
327 citations recorded by the source corpus.
In a fram ework thatm akesclosecontactwith m odern eectiveeld theoriesfornon-relativistic bound states at zero tem perature,we study the real-tim e evolution ofa static quark-antiquark pairin a m edium ofgluonsand lightquarksatnitetem perature.Fortem peraturesranging from values larger to sm aller than the inverse distance ofthe quark and antiquark,1=r,and at short distances,we derive the potentialbetween the two static sources,and calculate theirenergy and therm aldecay width.Two m echanism scontributeto thetherm aldecay width:theim aginary part ofthe gluon selfenergy induced by the Landau dam ping phenom enon,and the quark-antiquark color singletto color octettherm albreak up. Param etrically,therstm echanism dom inates for tem peraturessuch thatthe Debye m assislargerthan the binding energy,while the latter,which wequantify hereforthersttim e,dom inatesfortem peraturessuch thattheDebyem assissm aller than thebindingenergy.IftheDebyem assisofthesam eorderas1=r,ourresultsarein agreem ent with a recentcalculation ofthestaticW ilson loop atnitetem perature.Fortem peraturessm aller than 1=r,wend new contributions to the potential, both realand im aginary,which m ay be relevantto understand theonsetofheavy quarkonium dissociation in a therm alm edium .
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Citations in the corpus
- Measurement of nuclear modification factors of ϒ(1S), ϒ(2S), and ϒ(3S) mesons in PbPb collisions at sNN=5.02 TeV (2018, background): “Their spectral functions are modified as a consequence of Debye screening of the heavy-quark potential at finite temperatures [3,4], as well as by thermal broadening of their widths due to interactions with gluons [5,6].”
- Gauge/String Duality, Hot QCD and Heavy Ion Collisions (2011, background): “The fact that below Tc the free energy goes above the zero temperature result is a lattice artifact [224].”
- Heavy quarkonium in extreme conditions (2019, background): “In other scale hierarchies, the values for Re[V ] and Im[V ] can take on significantly different values [44, 160, 161].”
- Thermal bottomonium suppression at RHIC and LHC (2011, methodology): “Since then an additional imaginary-valued contribution to the potential coming from singlet to octet transitions has also been computed using the effective field theory approach [32], and lattice calculations have been performed in order to determine the imaginary part of the heavy quark potential [”