In-medium modifications of open and hidden strange-charm mesons from spatial correlation functions

We calculate spatial correlation functions of in-medium mesons consisting of strange-antistrange, strange-anticharm and charm-anticharm quarks in (2+1)-flavor lattice QCD using the highly improved staggered quark action. A comparative study of the in-medium modifications of mesons with different flavor contents is performed. We observe significant in-medium modifications for the ϕ and Ds meson channels already at temperatures around the chiral crossover region. On the other hand, for the J/ψ and ηc meson channels in-medium modifications remain relatively small around the chiral crossover region and become significant only above 1.3 times the chiral crossover temperature.

11.15.Ha
12.38.Gc
quark: staggered
meson
chiral
correlation function
lattice field theory
quantum chromodynamics
quark: flavor: 3
numerical calculations

References(45)

Figures(22)

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•
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: Numerical values of the screening masses, in GeV, for s¯s sector for different temperatures. The 1st and 2nd parentheses indicate the statistical and systematic errors, respectively. T [MeV] 0-+ 0++ 1-- 1++ 138.2 0.69572(18)(35) 1.0542(40)(96) 1.0469(13)(29) 1.3766(83)(50) 143.3 0.70202(13)(4) 1.041(2)(12) 1.0565(8)(49) 1.343(4)(16) 149.0 0.70997(18)(39) 1.016(2)(17) 1.0618(11)(67) 1.325(5)(23) 153.5 0.71691(20)(33) 1.0115(17)(97) 1.0719(9)(47) 1.300(3)(19) 158.0 0.72777(21)(48) 1.0010(15)(71) 1.0852(9)(51) 1.286(2)(19) 164.3 0.74406(18)(62) 0.9754(12)(64) 1.0982(6)(55) 1.273(2)(20) 167.5 0.75755(34)(67) 0.9715(15)(78) 1.1146(14)(66) 1.273(2)(16) 170.8 0.76538(28)(27) 0.9687(6)(51) 1.1221(10)(67) 1.268(1)(12) 175.8 0.79145(40)(36) 0.9690(11)(26) 1.1475(9)(54) 1.2742(20)(89) 182.6 0.81736(51)(49) 0.9717(8)(59) 1.1673(9)(69) 1.276(1)(16) 189.6 0.8508(5)(11) 0.9834(9)(32) 1.(14)(69) 1.2857(20)(85) 196.9 0.8912(5)(11) 1.0034(6)(39) 1.2387(8)(50) 1.3096(14)(85) 210.2 0.9694(5)(11) 1.0474(6)(33) 1.3123(8)(32) 1.3611(10)(61) 220.2 1.0381(6)(12) 1.0979(7)(23) 1.3709(8)(31) 1.4077(8)(51) 247.9 1.23211(58)(73) 1.2689(5)(10) 1.5468(8)(41) 1.5671(9)(49) 297.5 1.5862(30)(17) 1.5969(31)(13) 1.8787(32)(35) 1.8855(34)(40) 371.9 2.1069(23)(35) 2.1150(23)(50) 2.3695(40)(28) 2.3719(41)(29) 495.8 2.9102(40)(55) 2.9181(24)(37) 3.1589(27)(47) 3.1605(27)(51)

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